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The part of the enzyme that the substrate fits into is called the active site.
The active site of an enzyme is a specific region on the surface of the enzyme that binds to the substrate and allows the enzyme to perform its specific chemical reaction on the substrate. The active site is typically located on a flexible loop or "lid" on the surface of the enzyme and is complementary in shape to the substrate.
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where is the reticular formation located? multiple choice question. the cerebellum only in the medulla oblongata brainstem and spinal cord
The reticular formation is located in the brainstem, which means option C is the right answer.
The reticular formation comprises a set of interconnected nuclei and neurons which are responsible for relay functions and assist in several coordinating functions important for survival. They are responsible for regulating the sleep wake cycle of the body. Any damage to the region can cause hype somnolence and drowsiness. The brainstem is the biological structure that connects the cerebrum of the brain to the spinal cord and cerebellum. It extends from the lower part of the medulla oblongata to the upper part of the midbrain. It carries extreme importance in sensory, cognitive and behavioral functions.
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It the stem of a convolvulus plant is cut, the leaves above the cut die ,suggest why
Answer:
Explanation:they die because you cut off the life supply that the leaf under was giving
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Answer:
Explanation: water oxygen
the digestive tract is essentially one long tube. the order of the structures, beginning with the mouth, is
The digestive tract is essentially one long tube. the order of the structures, beginning with the mouth, is
Pharynx-->esophagus-->stomach-->small intestine-->large intestine
The digestive system is made up of the liver, pancreas, and gallbladder as well as the gastrointestinal tract, commonly known as the GI tract or digestive tract. From the mouth to the anus, the GI tract is made up of several hollow organs connected by a protracted, twisted tube. The stomach, small intestine, large intestine, and anus are the hollow organs that make up the GI tract. The digestive system's solid organs are the liver, pancreas, and gallbladder.
Three sections make up the small intestine. The duodenum is the name of the first section. The ileum is at the end, while the jejunum is in the middle. The cecum, colon, rectum, and appendix are all parts of the large intestine. A finger-shaped pouch connected to the cecum is the appendix.
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Radioactive carbon 14 was used to determine the geologic age of old would preserved in the glacier the amount of Steve 14 in the old wood is 1/8 the normal amount of C 14 currently found in the word of living  trees  what is the geologic age of the Old wood
The estimated age of the ancient wood would be 5,730 years if carbon from a sample of wood was discovered to have only half as much carbon-14 as that from a living plant.
What is half life?Half life is defined as the amount of time it takes for a radioactive substance to break down or change. The half-life of a particular radioactive isotope is not influenced by the environment and is not dependent on the isotope's initial concentration.
The radioactivity of carbon-14 decays by 50% every 5,730 years. Radiocarbon dating depends on that half-life. Since carbon-12 doesn't deteriorate, it serves as a reliable indicator of carbon-14's impending demise. Older carbon-14 isotopes give off less radiation.
Thus, the estimated age of the ancient wood would be 5,730 years if carbon from a sample of wood was discovered to have only half as much carbon-14 as that from a living plant.
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the two strands of dna are held together with hydrogen bonds between the nitrogen bases. these are weak bonds between polar molecules. how many hydrogen bonds connect the two bases from question 4?
The number of hydrogen bonds connecting the two bases from question 4 depends on the specific bases in question. If the two bases are A and T, then there would be two hydrogen bonds connecting them. If the two bases are C and G, then there would be three hydrogen bonds connecting them.
Adenine (A) and Thymine (T) are two nitrogen bases that connect via two hydrogen bonds. Cytosine (C) and Guanine (G) are also two nitrogen bases that connect via three hydrogen bonds. Therefore, if the two bases being considered are A and T, then there would be two hydrogen bonds connecting them. If the two bases being considered are C and G, then there would be three hydrogen bonds connecting them.
In conclusion, the two strands of DNA are held together by hydrogen bonds between the nitrogen bases. These are weak bonds between polar molecules, and are responsible for connecting the two strands of the double helix. The number of hydrogen bonds connecting the two bases from question 4 depends on the specific bases in question.
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the compound that consists of ribose linked by an n-glycosidic bond to n-9 of adenine is:
The emulsion that consists of ribose linked by an N- glycosidic bond to N- 9 of adenine is adenosine.
Adenosine is a purine nucleoside base, utmost generally honoredwith the patch adenosine triphosphate, or ATP, and is usedcompletely throughout the entire body in general metabolism.( 6) Adenosine’s use as a pharmacological medicine works through receptors called purinergic adenosine receptors set up throughout the body. Samsel etal. describe four types of adenosine receptors A1, A2a, A2B, and A3, affecting the vulnerable, nervous, circulatory, respiratory, and urinary systems.
Adenosine has a crucial part in the adaptive response in pulmonary hypertension and heart failure, with the most applicable goodsbeing decelerating of heart meter, coronary vasodilation and dwindling blood pressure.
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ethidium bromide is a dye that is used to stain the gel and allows the dna to be viewed under uv light.true
false
This statement is TRUE that Ethidium bromide is a dye that is used to stain the gel and allows the DNA to be viewed under UV light.
A low-molecular-weight blue dye that will swiftly flow through the gel when charged is used to add the test DNA to the gel. This gives a visual indication of the gel's development. The procedure is finished when the blue dye has traveled to the other side of the well. A running buffer known as TAE that is made up of Tris base, acetic acid, and EDTA (ethylene diamine tetra acetic acid) is applied to the agarose gel. This gives the current an electrolyte and keeps the DNA in the gel in tact.
The DNA in the agarose gel is stained with an Ultra violet fluorescent dye so that it can be captured on camera and viewed under a UV light source. Ethidium bromide, the dye, is a fluorescent substance that, when employed as a stain, inserts itself between base pairs. Due of its severe toxicity, this has a disadvantage. There are guidelines for managing this material, and it should always be handled with caution.
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why must compensatory articulatory efforts often be implemented with the cerebral palsied individual?
People with cerebral palsy may be unable to achieve regular articulation. Cerebral palsy refers to a group of disorders affecting movement, muscle tone, and posture.
It is caused by damage to the developing, immature brain, which usually occurs before birth. Symptoms and signs appear during childhood or preschool. In general, cerebral palsy causes impaired movement that is characterized by exaggerated reflexes, floppiness or spasticity of the limbs and trunk, unusual posture, involuntary movements, unsteady walking, or some combination of these symptoms.
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The diagram shows the process of photosynthesis and cellular respiration in relation to each other.
What can be concluded from the diagram?
O Light energy is converted into chemical energy in photosynthesis.
O Light energy is converted into chemical energy in cellular respiration.
O Cellular respiration utilizes ATP to release energy in the form of heat.
O Photosynthesis releases oxygen and ATP that are used in cellular respiration.
Answer:
A
Explanation:
The diagram shows that light energy is converted into chemical energy in photosynthesis. This can be concluded from the fact that the diagram shows light energy being absorbed by chloroplasts in the process of photosynthesis, and that the process of photosynthesis produces glucose, which is a form of chemical energy.
Therefore, the correct answer is A) Light energy is converted into chemical energy in photosynthesis.
Explain why an increase in precipitation and in the number of nearby factories has a greater impact on the occurrence of the mariflowers than changes in temperature, length of day, and invasive species.
Because some forms of precipitation contain acid and the vinegar has a high pH level, the rise in precipitation and the number of neighbouring industries have a stronger influence on the prevalence of mari flowers.
What is meant by invasive species?Any non-native species that significantly alters or disturbs the ecosystems it colonises is considered an invasive species, also known as an imported species, alien species, or exotic species. Such species may migrate naturally to new locations, but they are frequently brought in by the activity of other species.
Why do invasive species occur?Human actions, sometimes unknowingly, are the primary means by which invasive species are disseminated. People and the commodities we use move swiftly throughout the globe, frequently bringing unwanted species with them. Aquatic creatures can be carried by ships in their bilge water, while they can also be carried by smaller boats on their propellers.
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Genetically modified organisms, or GMOs, include crops which have been genetically engineered in the laboratory. Genes for desirable traits, such as the resistance to certain insects, can be inserted into the DNA of cells that divide for plant growth. Which is MOST LIKELY to be an ethical concern about GMOs? Responses Desirable traits are given to crops. Desirable traits are given to crops. Local insects may not be able to eat crops. Local insects may not be able to eat crops. Organisms with new genotypes may appear. Organisms with new genotypes may appear. Scientists can't predict how these changes affect the local ecosystem.
The ethical concern about GMOs is :
Desirable traits are given to crops.Organisms with new genotypes may appear. What is meant by GMOs?Biological entities (plants, animals, or microorganisms) that have had their genetic material (DNA) altered in a way that does not happen normally through mating and/or natural recombination are known as genetically modified organisms (GMOs).
Today's GMO crops were primarily created to aid farmers in weed management, crop loss prevention, and food preservation. The following are the top three characteristics of GMO crops: resistance to several harmful insects. Tolerance of specific weed-killing herbicides
The term "GMO" (genetically modified organism) is now frequently used by consumers and the media to refer to foods that were produced via genetic engineering.
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The intensity of the earthquake that recently caused a devastating tsunami in Japan was measured using the ___________ scale.
A)
earthquake
B)
Richter
C)
tsunami
D)
tidal
E)
gauge
Please select the best answer from the choices provided
A
B
C
D
E
Answer:
B) Richter
Explanation:
The intensity of the earthquake that recently caused a devastating tsunami in Japan was measured using the Richter scale.
Explanation :This is a stormy earthquake which occurred in Japan. This earthquake was 8.9 degrees. It shook at 2:46 p.m. local time in Japan.
Correct Paragraph B) Richter.
what is the target of thyroid hormones? what is the target of thyroid hormones? thyroid anterior pituitary hypothalamus cells of the body
The target of thyroid hormones is anterior pituitary.
The pituitary gland is frequently referred to as the body's "master gland." Such praise is merited because the anterior and posterior pituitaries secrete a variety of hormones that combined have an impact on practically every physiological activity and influence all cells.
For instance, anterior pituitary cells with receptors known as thyrotrophs emit thyroid-stimulating hormone, or TSH, when thyroid-releasing hormone from the hypothalamus binds to them. The anterior pituitary hormones circulate throughout the body and bind to receptors on various target organs. The thyroid gland is the organ that TSH is intended to affect.
Tyrosine-based thyroid hormones (T3, T4) are produced by the thyroid gland. A standard amino acid is 4-hydroxyphenylalanine, which is tyrosine.
Triiodothyronine (T3) has the following effects: raises heart rate, increases basal metabolic rate, brain development, and enhances protein and carbohydrate catabolism.
The hypothalamus is undoubtedly the force behind the throne, even though the pituitary gland may be the monarch. As was mentioned in the previous part, the hypothalamus contains neurosecretory neurons, which secrete hormones that carefully regulate the release of hormones from the anterior pituitary. Due to their impact on anterior pituitary hormones, the hypothalamic hormones are referred to as releasing hormones and inhibiting hormones, respectively.
The hypothalamus-hypophyseal portal veins deliver hypothalamic releasing and inhibitory hormones directly to the anterior pituitary gland. Distinct anterior pituitary cell receptors bind to specific hypothalamus hormones, controlling the release of the hormones those cells generate.
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asexual reproduction group of answer choices has advantages over sexual reproduction when the environment is changing. is an unsuccessful mode of reproduction. occurs in plants but not in animals. occurs in some animals when they split themselves in two. creates genetically diverse individuals.
Asexual reproduction (a) has advantages over sexual reproduction when the environment is changing.
Because the kids are all clones of the original parent, asexual reproduction results in offspring that are genetically identical to the parent. Asexually reproducing creatures have two benefits over sexually reproducing species: the ability to make huge numbers of offspring fast, and the ability to produce offspring one at a time.
Asexual reproduction is a successful method of reproduction when the environment is predictable or stable since all the children will be acclimated to it. Asexually reproducing organisms may be at an advantage in an unstable or unpredictable environment since all of their progeny are genetically similar and be able to adapt to various environments.
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A. Looped domain, 30-nm chromatin fiber, nucleosome, 2 nm helix b. 2 nm helix, nucleosome, 30-nm chromatin fiber, looped domain c. Nucleosome, looped domain, 2 nm helix, 30-nm chromatin fiber d. Looped domain, nucleosome, 2 nm helix, 30-nm chromatin fiber e. 2 nm helix, nucleosome, looped domain, 30-nm chromatin fiber
Nucleosome, 30-nm chromatin fiber, looped domain. the following lists represents the order of increasingly higher levels of organization of chromatin.
How are nucleosomes positioned in 30 nm condensed fibers?A 30-nanometer chromatin fiber made of folded nucleosomes creates loops that are 300 nanometers in length on average. A 250 nm-wide fiber, which is snugly wound into a chromosome's chromatid, is created by compressing and folding 300 nm fibers.
A looping domain is what?The loop domain is widely acknowledged to be the fundamental structural component of eukaryotic chromatin involved in DNA replication, gene expression, and higher order packaging.
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14. Which scenario is an example of a biophilic process?
1.garbage management that buries trash in a landfill in an unpopulated rural area
2.farming that controls pests and maximizes plant growth through organic processes
3.industrial processes that use lake water to cool machinery in a factory
4.power generation that burns natural gas to power homes and businesses
Skylights, which let in natural light, green walls or living walls, which are covered in living plants, and the presence of water, such as fountains or ponds, are some typical components of biophilic architecture.
What exactly is a biophilic encounter?The fundamental component of biophilic design is direct contact with nature, and it is also the simplest method for implementing multiple levels of sustainable and practical design principles. Light, air, water, plants, animals, fire, terrain, weather, and vistas are among the nine characteristics that make it up.
What exactly is a biophilic setting?Utilizing natural resources, daylight, and plants to improve the aesthetics and functionality of constructed environments is known as "biophilic design."
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which statement about the nucleus is incorrect? a-the nucleus contains the instructions for copying itself b-the nucleus contains the genetic material of the cell c-the nucleus contains the information that ribosomes use to carry out cellular respiration d-the nucleus contains the information that ribosomes use to carry out protein synthesis
Answer:
The nucleus contains the information that ribosomes use to carry out cellular respiration.
A potential cause of male infertility is a blockage of the vas deferens. The blockage could be due to the build up of scar tissue along the vas deferens. What medical treatment would most likely be used to treat this type of infertility?
A.
surgery to remove the obstruction
B.
medication to stimulate sperm production
C.
implantation of semen into the testes
D.
hormone therapy to increase testosterone
Answer:
A
Explanation:
The most likely treatment for a blockage of the vas deferens due to scar tissue would be surgery to remove the obstruction. This would involve a surgical procedure to remove the scar tissue and unblock the vas deferens, allowing sperm to pass through and potentially restoring fertility. Options B and D are not appropriate treatments for this condition, and option C is not a standard treatment for any type of infertility.
what percent of the time required to complete a full cycle do the cells typically spend in interphase
Approximately 95 percent of the time of the cell cycle is spend in the Interphase. During this phase, the cell prepares itself for the actual division.
What is Interphase?
Interphase is the longest portion of the cell cycle which is not accompanied by any visible changes in the cell under the microscope. During interphase, the cell grows in size, replicates its DNA to form daughter cells and prepares itself for the actual mitosis. A cell in interphase is not quiescent at all.
Interphase is composed of three main phases which include G1 phase, where the cell grows in size, followed by S phase where the process of DNA synthesis takes place, followed by G2 phase where again the cell growth takes place. At the end of interphase comes the mitotic phase (M-phase), which includes karyokinesis and cytokinesis and leads to the formation of two daughter cells.
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substance found in eukaryotic chromosomes that consists of dna tightly coiled around histones
Chromatin is the answer. Chromatin is the material that makes up eukaryotic chromosomes and is made up of DNA tightly wound around histones.
Eukaryotic cells contain a combination of proteins and DNA called chromatin. Its primary job is to bundle DNA molecules into denser, more compact structures, which prevent the strands from tangling. Additionally, it supports the DNA during cell division, protecting it from deterioration. Histones are the main proteins that makeup chromatin. Gene activation and deactivation are regulated by histones. There are two different forms of chromatin: heterochromatin, which is denser, and euchromatin, which is less dense.
So, Chromatin is the answer, we might claim. Eukaryotic chromosomes are constructed of chromatin, which is composed of DNA that is tightly coiled around histones.
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What is not true about asexual reproduction?
A
It does not involve union of gametes
B
It involves only one parental organism
C
It involves two organisms of different sexes
D
There is no mixing of genetic materials of two individuals
Biomolecules that are used to transport large molecules across the cell membrane are identified as?
calculate the concentration of a noncompetitive inhibitor (k1 = 2.9 x 10- 4 m) needed to yield 90% inhibition of an enzyme-catalyzed reaction
The concentration of a noncompetitive inhibitor (k1 = 2.9 x 10- 4 m) needed to yield 90% inhibition of an enzyme-catalyzed reaction is 0.0029 m.
Enzyme inhibitors are molecules that move with enzymes (temporary or permanent) in a way associated scale back the speed of an enzyme-catalyzed reaction or forestall enzymes to figure in a very traditional manner. The vital sorts of inhibition are competitive, cooperative, and noncompetitive inhibitors.
The catalyst site is that the location on the catalyst surface wherever substrates bind, and wherever the reaction catalyzed by the catalyst happens. Catalysis s a development within which the speed of the reaction is altered with the assistance of a substance referred to as a catalyst. An example of enzyme-catalyzed reaction is Inversion of cane sugar.
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In both eukaryotes and prokaryotes, gene expression is primarily regulated at the level of?
In both eukaryotes and prokaryotes, gene expression is primarily regulated at the level of transcription.
Gene expression is the process through which a gene's information is used to create a functioning gene product, allowing it to produce end products like proteins or non-coding RNA and ultimately have an impact on phenotypes.
Transcription has a key role in regulating prokaryotic gene expression. Epigenetics, transcription, post-transcription, translation, and post-translation all play a role in the regulation of eukaryotic gene expression.
Hence the transcription level is the same for both prokaryotes and eukaryotes. Limiting the amount of mRNA that is generated from a specific gene regulates transcription.
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list 5 features of animal body plans. (must discuss all 5 parts)
Answer:
4 legs,
Explanation:
mycorrhizae are often found associated with the roots of vascular plants. where are fungal endophytes typically found in vascular plants?
Fungal endophytes are typically found in the leaf mesophyll in vascular plants.
Endophytes are organisms that live within a body of a plant for at least a part of its life cycle without causing any apparent damage. Most of the endophytes are either bacteria or fungi.
Fungal endophytes are generally categorized based on the mode of transmission, biodiversity, in planta colonization, and the host plant type. However, in vascular plants, fungal endophytes are most likely to be found inside the tissue spaces of plants (leaf mesophyll). They allow the plant to obtain additional moisture and nutrients, making their relationship with the host plant mutualistic.
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sugarcane is vulnerable to the cane beetle, which can substantially reduce crop yields. suppose that a new beetle‑resistant species of sugarcane is developed and productivity increases as a result. use the terms to identify the effect on each of the related factors.
Sugarcane is vulnerable to the cane beetle, which can substantially reduce crop yields. suppose that a new beetle‑resistant species of sugarcane is developed and productivity increases as a result as productivity increases.
The prices of sugar will decrease and the quantity demanded for sugar will then increase. Given the change in price of sugar, the prices of cookies will decrease. The prices of honey also used as a sweetener will also decrease. Responding to the changes in sugar market, the prices of textiles will not change.
The world's population is fed to a considerable extent by the current food system, which includes production, transport, processing, packing, storage, retail, consumption, loss, and waste. It also provides for the livelihoods of over 1 billion people. The amount of food available per person has increased by more than 30% since 1961, along with increasing use of nitrogen fertilizers (up nearly 800%) and water resources for irrigation (up more than 100%). However, 613 million women and girls between the ages of 15 and 49 are iron-deficient, 821 million people are thought to be undernourished, 151 million children under the age of five are stunted, and 2 billion adults are either overweight or obese.
The food system is under stress from both climate change and non-climate stressors, such as population and wealth development and the demand for items derived from animals.
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in a certain forest community, fallen trees and dead animals take longer than normal to release their nutrients back into the ecosystem. this community probably has a low population of
Fallen trees and dead animals in one forest community take longer than usual to discharge their nutrients back into the ecosystem. This community most likely has a small number of Decomposers.
Because nutrient recycling is the primary function of decomposers, a low number of decomposers will result in slow nutrient recycling.
Decomposers eat dead objects like leaf litter and timber, as well as animal carcasses and feces. As Earth's cleanup team, they provide a crucial service. Dead leaves, insects, and animals would build up everywhere if decomposers did not exist. Imagine what the world might look like!
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which one of the following statements about the glycerol phosphate shuttle is true?
The true statement about glycerol phosphate shuttle is that it involves electron transfer from cytoplasmic NADH to DHAP to yield glycerol phosphate.
Glycerol phosphate shuttle is a biological mechanism to convert NAD+ into NADH by the process of glycolysis that is splitting of glucose into three carbon molecule. The glycerol-3-phosphate shuttle allows the NADH produced in the cytoplasmic matrix by glycolysis to assist in the oxidative phosphorylation pathway in the mitochondria (power house of cell) to generate ATP (adenosine triphosphate). During the process of respiration, it consumes 2 molecules of ATP and 36 ATP are generated in aerobic respiration via glycerol phosphate shuttle in eukaryotes. It is simply high energy transfer of electrons in the cytoplasm.
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