Orcas can't even come close to holding their breath for as long. Their maximum duration is approximately 15 minutes, but we typically observe them surfacing for air every 3-5 minutes when traveling or every minute when moving quickly.
The orca, also known as the "killer whale," is the largest member of the dolphin family and is a whale with teeth. These large marine mammals are easy to spot due to their black-and-white coloring, large dorsal fin, and sleek body. On the fluke's undersides, ventral surface, and lower jaw, bright white is the predominant color. The distinctive patterns serve as a method of concealment when they are searching for food.
Whales, like humans, breathe in oxygen through their lungs. However, rather than breathing through their mouths, they breathe through their nostrils, which are the blowholes on top of their heads. They can easily breathe through the blowhole without lifting their entire head out of the water.
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Why do cancer cells divide and multiple uncontrollably?
Answer:
Most cancer-causing DNA changes occur in sections of DNA called genes. These changes are also called genetic changes. A DNA change can cause genes involved in normal cell growth to become oncogenes. Unlike normal genes, oncogenes cannot be turned off, so they cause uncontrolled cell growth.
Does losing weight help cardiovascular disease?
Yes, losing weight help with cardiovascular disease.
Even a modest amount of weight loss can have a significant positive effect on cardiovascular health, including enhancement of heart function, reduction in blood pressure, and acceleration of metabolic rate. The Washington University School of Medicine has a research program that is dedicated to understanding the complex relationship between weight and heart health.
The program's work demonstrates that the benefits of weight loss can persist even if some of the weight is regained and that the effort can not only prevent but also reverse significant health problems.
Even after an individual had stopped losing weight and gained a few pounds back, the benefits continued to accrue over the course of many months.
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The plasma membrane of E. coli is about 75% protein and 25% phospholipid by weight. How many molecules of membrane lipid are present for each molecule of membrane protein
The plasma membrane of E. coli is about 75% protein and 25% phospholipid by weight. 26 molecules of membrane lipid are present for each molecule of membrane protein
The plasma membrane (cell membrane) is responsible for protecting the cell and also offers a fixed cell environment.
The lipid to protein ratio is 1:4 (25% lipid and 75% proteins).
An average protein has a weight of 54,000 (5.4 x 104).
54,000/3 = 18,000.
So, 1:4 ratio = 18,000:54,000.
So, for a protein (54,000 weight), there are lipids weighing 18,000.
An average lipid weighs 700. So, 18,000 weight of lipids would have 25.71 (26) lipid molecules.
That means there are 26 lipid molecules are present for each molecule of membrane protein.
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HURRY I NEED HELP PLEASE
At its typical boiling point of 100°C, water has a vaporizing heat of 2260Jg⁻¹. This indicates that for water to convert from 1 g of liquid at 100°C to 1 g of steam at 100°C, it must absorb 2260 J of temperature.
What is the name of environment?An ecosystem, often known as the environment, is a natural system made up of all living things—plants, animals, and microbes—as well as all inanimate objects (abiotic components) that make up the environment.
Why is the environment so crucial?The status of the environment has a direct impact on human health and wellbeing. Good natural settings provide our fundamental requirements by providing fresh water, clean air, and a hospitable climate for growing food.
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What is the function of the repressor in the E. coli lac operon?
O A repressor is a type of DNA sequence which activates or inactivates the expression of the lac operon genes by acting as a protein binding site. O A repressor is a type of protein that inactivates the expression of the lac operon genes by binding to the DNA of the lac operon. O A repressor is a type of DNA sequence that is located outside the lac operon and expresses the protein that controls lactose gene expression. O A repressor is a type of DNA sequence that activates the expression of the lactose genes by acting as an RNA polymerase binding site for the lac operon.
Ded by a DNA sequence called as a repressor. A repressor is a DNA sequence that activates expression.
What is protein?Explain protein. Protein makes up the majority of the body's organs, tissues, and body parts, include muscle, bones, skin, and fur. It helps to produce enzymes, which power countless chemical reactions, and hemoglobin, which carries oxygen in the blood.
What benefits does protein offer?Protein is an essential part of the processes that give you energy and enable your blood to carry oxygen throughout your body. In addition, it encourages the creation of antibodies that fight off illnesses and infections, keeps
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A researcher discovers a mysterious unknown multicellular eukaryotic organism. She would be confident that it is an animal if she observed that it ____
A researcher discovers a mysterious unknown multicellular eukaryotic organism. She would be confident that it is an animal if she observed that it has specialized organs, such as eyes, ears, or a heart, or if it moved in response to its environment.
Animals are a distinct group of multicellular eukaryotes, and they are characterized by the presence of specialized organs that aid in the collection of energy and nutrients, as well as providing a means for locomotion. These organs can be as simple as a single cell like the cilium on a paramecium, or as complex as the human brain. Additionally, animals usually respond to their environment in some way, such as locomotion or behavioral responses.
The researcher's observation of specialized organs and movement in response to its environment would be a strong indication that the organism is an animal. By looking at the size, shape, and organization of the cells under a microscope, the researcher could further confirm the identity of the organism. For instance, the presence of cilia or flagella would suggest that the organism is a protozoan, while the presence of an organized nervous system could indicate that it is a more complex organism, such as an arthropod or a vertebrate.
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What is a substitution deletion and insertion point mutation?
Insertion mutation occurs when an extra base pair is added to a sequence of bases.
In general, a Point mutation refers to alteration in a single base pair of DNA by substitution, deletion, or insertion of a single nitrogenous base. Most common example of point mutation is sickle cell anemia. that consists of mutation in a single base pair in the beta-globin chain of hemoglobin pigment in the blood cells. Thus, An insertion can involve the addition of any number of nucleotides, that can be a single nucleotide or an entire piece of a chromosome.
An insertion is a point mutation in which one or more base pairs is added to a DNA sequence. Point mutations is further divided into silent mutations, missense mutations, and nonsense mutations.
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How many chromatids are there after meiosis 2?
Answer:
Try 2 sister chromatids.
Explanation:
Please help me with this!!
Genetic makeup is the combination of genes that make up an individual's unique genetic code.
1.The physical appearance of an individual's genetic makeup phenotype.
2. A particular characteristic of an individual trait.
3. The passage of genetic instructions from one generation to the next generation genotype.
4. One variation of a particular gene allele.
5. The specific genetic makeup of an individual chromosomes.
6. Contain the genes of an individual heritability.
What are Chromosomes?
Chromosomes are thread-like structures composed of DNA and proteins that carry genetic information. In most living organisms, each cell contains a pair of chromosomes, one inherited from each parent. Humans have 23 pairs of chromosomes in each cell, for a total of 46. Chromosomes are responsible for determining an organism's traits, from eye color to blood type.
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Corn seeds with identical genetic information were planted on two adjacent farms. The corn plants on one farm were well fertilized and grew large, while the plants on the other farm were not given fertilizer and did not grow as large. The best explanation for these observations is that
The best explanation for these discernments is that environmental conditions impact quality verbalization.
The vitally immediate reason for biodiversity misfortune is land use change (fundamentally for enormous scope food creation) which drives an expected 30% of biodiversity decline all around the world. Second is overexploitation (overfishing, overhunting, and overharvesting) for things like food, prescriptions, and lumber which cruises all over 20%.
The zygote contains all the data fundamental for the development, improvement, and inevitable multiplication of the organic entity. Human sexual multiplication happens in fundamentally the same as way to other physically replicating creatures.
Corn portions are the products of corn (called maize in numerous nations). Maize is a grain, and the portions are utilized in cooking as a vegetable or a wellspring of starch. The portion involves endosperm, microorganisms, pericarp, and tip cap.
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PLEASE ANSWER QUICK Have you heard the terms structure and function used before? Using what you already know, identify two structures in your classroom and state their function
Yes, I have heard the terms structure and function used before. The two structures I identified in my classroom were:
Desk - The desk provides a stable, elevated surface for students to use for writing and studying.Chalkboard - The chalkboard provides a surface for teachers to write notes, instructions, and reminders.The Importance of Structures in the ClassroomIn the modern classroom, structures are essential for an effective learning environment. Structures provide the necessary framework for students to work and learn, while also providing teachers the necessary tools to facilitate learning. Without the right structures in place, learning quickly becomes difficult and inefficient.
Desks are some of the most crucial structures in a classroom. A student's desk provides them with a stable, elevated surface to write and study on. Having a desk allows students to spread out their materials and have easy access to them whenever they need them. It also gives them a designated workspace to stay focused and organized.
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During this stage of interphase, a cell prepares for cell division by making proteins and ATP it will use: *
The process of cell division is a complex process that requires the cell to prepare in many ways. During interphase, a cell prepares for cell division by synthesizing proteins and ATP, which it will use as energy sources during division.
Proteins are essential for division because they serve as structural components of the cell and are responsible for maintaining the cell’s shape. During interphase, the cell manufactures the proteins it needs for division. These can include cytoskeletal proteins, which give the cell structure and help it move, and enzymes, which help with chemical reactions. Without these proteins, the cell would not be able to divide correctly.
ATP is also essential for cell division. During interphase, the cell manufactures ATP, which it uses for energy during division. ATP is the energy currency of the cell and is used to power the metabolic processes required for cell division. It also helps the cell move and change shape during division, which is necessary for the process.
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Part A Bipotential state Which of the following statements best describes the bipotential state of a developing fetus? Hints O a stage of development when the internal and external reproductive organs have developed into both male and female O a stage of development when the internal and external reproductive organs are only female O a stage of development when the internal and external reproductive organs are only male O a stage of development when the internal and external reproductive organs have the potential to be either male or female
The Bipotential state of the growing fetus is a stage of development when the internal and external reproductive organs have the potential to be either male or female. Correct option(C)
During fetal development after two months the generation of sex organs or gonads take place to determine the sex of the growing fetus.
Until about two months after fertilization the immature gonads of human embryos are potential means that they can develop either into testes or ovaries. Undifferentiated gonads of XX or XY individuals are apparently identical and can form either ovaries or testes.
This period of Bipotential stage is also known as indifferent stage of gonads development.
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Some seeds are light and can easily be carried long distances by the wind. Some seeds have barbs that cause them to attach to the fur of animals. Some seeds are enclosed in fruit that is eaten by birds. What do these features of seeds all have in common?
A.
They all provide nourishment to the seed.
B.
They all help the seed survive winter.
C.
They all allow for seed dispersal.
D.
They all protect the seed from injury.
These features of seeds all have in common for They all allow for seed dispersal.
What is seed dispersal?Seed dispersal is the mechanism by which plant seeds are transported to new sites for germination and the establishment of new individuals. Animals commonly mediate this process, and consequently, the ultimate fate of seeds depends on their effectiveness as seed dispersersDispersal can be defined as the process by which individuals move from the immediate environment of their parents to establish in an area more or less distant from them.Dispersal is the spreading of things over a wide area. Plants have different mechanisms of dispersal for their spores. Synonyms: scattering, spread, distribution, dissemination More Synonyms of dispersalDispersal of seeds is very important for the survival of plant species. If plants grow too closely together, they have to compete for light, water and nutrients from the soil. Seed dispersal allows plants to spread out from a wide area and avoid competing with one another for the same resources
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The researchers placed white and brown mouse models both in abandoned fields on the mainland (dark soil) and on sand dunes on the islands (light soil) and then measured the percentage of models that were attacked by predators. What is the take-home message of the data
The take-home message from the data regarding the researchers’ study of the effects of soil color on the predation rate of white and brown mouse models is that the color of the soil does indeed affect the likelihood of predation.
In the study, the researchers found that when the mouse models were placed in abandoned fields on the mainland with dark soil, the brown mouse models were more likely to be attacked by predators than the white mouse models. Similarly, when the mouse models were placed on sand dunes on the islands with light soil, the white mouse models were more likely to be attacked by predators than the brown mouse models.
This data indicates that the color of the soil has an effect on the predation rate of white and brown mouse models. The researchers’ findings suggest that the color of the soil can act as a form of camouflage for the mouse models.
Similarly, when the mouse models were placed on the light soil of the sand dunes on the islands, the white mouse models were better camouflaged than the brown mouse models, making them less likely to be attacked by predators.
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Glands that secrete hormones into spaces that the hormones eventually diffuse into the blood stream from are called:
Glands that secrete hormones into spaces that the hormones eventually diffuse into the blood stream from are called endocrine cells.
Endocrine cells launch hormones into the intercellular spaces, from which they diffuse unexpectedly into surrounding blood vessels and from there in the course of the body. Micrograph (b) of the anterior pituitary gland indicates the standard capabilities of endocrine glands. On the opposite hand, endocrine glands secrete their materials at once into your bloodstream. They're referred to as ductless glands. Endocrine glands are a part of your endocrine system, and that they secrete hormones. Examples of endocrine glands encompass your pituitary gland, thyroid gland and adrenal glands. Endocrine glands launch hormones into the bloodstream. This shall we the hormones tour to cells in different elements of the body. The endocrine hormones assist manipulate mood, boom and development, the manner our organs work, metabolism, and reproduction.
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What determines a cat's fur pattern?
A cat's color pattern is partly determined by a gene called DKK4.
Domestic Cats All cats have some sort of tabby in their genetics. The A gene is involved in cat patterns. A, or agouti, dominant, produces ticks or bands of color in the hair.
There are 6 types of cat hair patterns. These are tabby, solid, bicolor, tricolor, tortoiseshell and colorpoint. These different markings are attributed to cat genetics, and the results can be surprising.All domestic cats, even plain ones, have an underlying genetic pattern of tabby. Spots, Stripes, Spots:
A cat's fur color pattern resulting from an important gene.
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When a whale migrates from one pod to another pod, alleles in each gene pool become more similar to each other. This is an example of which mechanism of evolution. Mutation Natural Selection Genetic Drift Gene Flow
This is an example of genetic drift mechanism of evolution.
When whales migrate from one pod to another pod, unique alleles found in each gene pool become more similar over time. This phenomenon is known as genetic drift, which is a mechanism of evolution.
Genetic drift is the result of random fluctuations in the frequency of alleles, which can be caused by a variety of factors, including migration, natural disasters, and population size.
As whales migrate and the gene pools of different pods become more similar, the genetic diversity of the overall population decreases. This process can have a lasting impact on the survival of a species.
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What do you think is the importance of food labels with nutrition?
Explanation:
It's importance is stating the nutritional value of the product and letting consumers know about any possible allergens
Please help me with this!!
The answers to the table are genotype, phenotype, trait, heredity, chromosome, allele, in that sequence.
How does a chromosome explain work?
a component that can be found in a cell's nucleus. Proteins and DNA are arranged into genes on a chromosome. There are typically 23 pairs of chromosomes in each cell.
What is a chromosome's primary purpose?
DNA may be precisely duplicated during these cell divisions thanks to chromosomes. So, once more. Our cells' nuclei include chromosomes, which enable precise DNA duplication during cell division. This guarantees that our internal processes go smoothly and effectively.
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What is the strongest evidence to support the theory of evolution?
Perhaps the strongest fossil evidence for evolution is the continuity of the fossil record from prehistoric to modern times.
The Devonian, the age of the fishes, or human fossils amid dinosaur remains are not things we discover anyplace on Earth. The five assumptions that Darwin combined are evolution, or common descent, gradualism, species diversity, and natural selection. A theory is a reason for how a natural phenomena works that has been put to the test extensively through observations and tests meant to prove the correctness of the explanation. In this situation, evolution may be viewed as a theory as well as reality. It cannot be disputed that throughout Earth's history, living things have changed or evolved.
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What specific host gene functions would you consider as strong candidates for such methylation by infecting viruses
Many viruses specifically methylate genes associated with the immune response, thus dampening that response and enhancing viral infectivity.
What are genes and what do they do?A gene is the most fundamental physical and functional element of heredity. DNA is the building block of genes. Some genes serve as blueprints for the creation of proteins. Many genes, however, do not code for proteins. Genes in humans range in size from a few hundred DNA bases to over 2 million bases.
What are the four primary roles of genes?Gene functions include:
Genes are genetic material components and consequently units of heredity.They have control over an individual's morphology or phenotype.Gene replication is required for cell division.Hereditary information is passed down through generations via genes.Learn more about gene functions to visit this link
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Full Question: What specific host gene functions would you consider as strong candidates for such methylation by infecting viruses?
Many viruses specifically methylate genes associated with the immune response, thus dampening that response and enhancing viral infectivity.
Many viruses specifically methylate protective genes, thus enhancing viral infectivity.
Many viruses specifically methylate genes associated with the cell cycle, thus activating DNA amplification and enhancing viral infectivity.
Many viruses specifically methylate genes associated with apoptosis, thus dampening that response and enhancing viral infectivity.
or
Scientists theorize that all life started with simple prokaryotic organisms. New species continue to evolve
from existing species, creating the variety of life we see today. The following diagram shows the basic
process.
fungi
(oukaryotic,
unicellular,
multicellular)
protista
(eukaryotic,
uni-or
multicellular)
eubacteria
(prokaryotic,
unicellular)
animalia
(eukaryotic
multicellular)
universal
ancestor
plantae
(eukaryotic
multicellular)
archaebacteria
(prokaryotic,
unicellular)
Based on this diagram, do you think that organisms of the same order will share a stronger evolutionary
relationship than organisms that share only the same phylum? Explain your reasoning using the results of
your investigation.
According to the taxonomical categorization, organisms are grouped into phyla and classes according to how closely they resemble one another.
Plants, animals, microbes, and other organisms are all classified taxonomically. It organizes, categorizes, and gives organisms scientific names.
The phylum is the level above the order in taxonomy, and it will be less comparable to the organism in order or class.
In contrast to an organism belonging to the same phylum, an organism belonging to the same order will share a close evolutionary link.
What, using an example, is taxonomical classification?
Similar categories, including kingdom, phylum, class, order, family, genus, and species, are used to classify organisms. Species are groups of creatures that share a common trait. On the basis of the morphological characteristics, species are distinguished. For instance, many mango varieties are all members of the same species.
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Indicate whether the glven act would create water retention or water loss In the body.
Dry mouth ~ Increased osmolarity of blood aldostorenone hyposecretion ~ Decreased renal tubular reabsorption of water Renin release ~ Hyponatremia
Increased blood pressure ~ Ingestion of water
ADH hypersecretion ~ Hyperkalemia
Increased water permeability of the DCT and collecting ducts of the kidneys ~ Hemorrhage
Exercise in a warm climate
ADH and testosterone increase the risk of heart and volume as the water is absorbed into the bloodstream into to the capillaries, bringing the blood salt concentration back to normal.
What does the renin enzyme do in response to a lower ph quilt in the kidney?An enzyme known as renin is released by kidney cells in response to low blood pressure. The kidneys reabsorb salt due to renin. Water retention is a constant side effect of sodium reabsorption. Blood pressure and volume are restored as a result.
Which hormone promotes water retention while guarding against dehydration?A deficiency of renin - angiotensin system (ADH), also known as prolactin, usually prevents hydration, or the kidneys and liver inability to react to ADH, are the two main causes of diabetes insipidus. The kidneys may hold onto the body's fluids thanks to ADH. The steroid.
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Where is ATP made in respiration?
The majority of ATP synthesis takes place within the mitochondrial matrix during cellular respiration, with each molecule of glucose oxidized creating around 32 A T P molecules.
ATP produced in mitochondria serves as the main energy source for vital biological functions such muscle contraction, nerve impulse transmission, and protein synthesis. The majority of the ATP produced during cellular respiration is created in the mitochondrial matrix, where each glucose molecule that is oxidised yields roughly 32 molecules of ATP.
Gradients are produced as a result of protons being pumped out of the matrix as electrons move down the chain and release energy in the process.
Protons flow back into the matrix and are converted into ATP by an enzyme called ATP synthase.
The inner mitochondrial membrane contains ETS.
The majority of the ATP in cells is produced by the enzyme ATP synthase, which does this by converting ADP and phosphate to ATP. ATP synthase is found in the membrane of mitochondria, which are cellular organelles; in plant cells.
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What is the genotypic ratio of dihybrid cross of round yellow?
The genotypic ratio of dihybrid cross of round yellow is 9:3:3:1 .
Mendel noticed that his dihybrid cross' F2 offspring had a 9:3:3:1 ratio and produced nine plants with round, yellow seeds, three plants with round, green seeds, three plants with wrinkled, yellow seeds, and one plant with wrinkled, green seeds.
An organism's genotype is made up of all of its genetic components. [1] The term "genotype" can also be used to describe the alleles or genetic variations that a person carries in a certain gene or genetic region. [2] The ploidy, or number of copies of each chromosome, found in that species, determines how many alleles a person can have for a given gene.
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Why is firewood considered a limited resource ?
A. People are not practicing sustainable wood harvesting
B. Wood is used in place of money to trade for food
C. Fuelwood allows people to purify their water by boiling it
D. Fuelwood allows people to cook their food .
An increase in water-borne diseases could possibly be alleviated by.
A. Adequate sewage treatment facilities for growing populations.
B. Very rapid growth of large cities.
C. Sufficient fuelwood
D. Both A and D.
Which of the following would not be a characteristic of a country on the least developed countries list ?
A. Extremely poor nutrition, health, and education
B. Extremely high poverty levels- making about $2.00 per day .
C. Distinct developmental progress
D. Aided by the UN finically
Most countries are tending towards replacement level fertility rates by 2050. What does this mean for world population growth in the future past 2050?
A. Population growth will become population loss
B. Population growth will eventually stop
C. The population will continue to grow
D. None of the above .
I know for the last question the answer isn’t A .
I know question three isn’t answer B.
I know question 1 isn’t answer C.
Answer: A- People are not practicing sustainable wood harvesting
A- Adequate sewage treatment facilities for growing populations.
C- Distinct developmental progress
D. None of the above .
Explanation:
How did this data further support the hypothesis that DNA is the transforming factor?
In a very simple experiment, Oswald Avery's group showed that DNA was the "transforming principle.
Why is DNA the transforming factor?Oswald Avery, Colin MacLeod, and Maclyn McCarty appear that DNA (not proteins) can transform the properties of cells, and simplify the chemical nature of genes. Avery, MacLeod, and McCarty recognize DNA as the "transforming principle" while learning about Streptococcus, bacteria that can cause pneumonia.
When isolated from one tension of bacteria, DNA was able to transform another strain and give out characteristics to that second strain. DNA was convey hereditary information.
So we can conclude that the transforming principle Griffith noticed was the DNA of the III-s strain bacteria.
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in details the steps for blood clotting in response to an injury
Where does the light reaction happens in plant?
The light reactions of plants are the photochemical reactions that take place in the thylakoid membrane of chloroplasts and convert light energy into chemical energy in the form of ATP and NADPH.
Light reactions in plants occur in the thylakoid membranes of organelles referred to as chloroplasts. The light processes are mostly controlled by photosystems, sizable complexes of proteins and pigments (light-absorbing molecules) that are designed to capture light. The light reactions processes include the plants division of water into oxygen, protons, and electrons, and take place in the chloroplast thylakoid membrane. The light reactions occur in the chloroplast thylakoid membrane and involve the splitting of water into oxygen, plants,protons and electrons.
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