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A student illustrated a model of particles being transported out of the cell. ( image above) what best describes the transport process occurring in the model?
a. energy is used to move sodium ions from low concentration to high concentration
b. sodium ions are moving from low to high concentration without using energy
c. sodium ions are moving from high to low concentration without using energy
d energy is used to move sodium ions from high to low concentration
Answers
Answer:
C.
mark me the brainliest if this helps
Explanation:
Simple diffusion is pretty much exactly what it sounds like – molecules move down their gradients through the membrane. Molecules that practice simple diffusion must be small and nonpolar*, in order to pass through the membrane. Simple diffusion can be disrupted if the diffusion distance is increased. If the alveoli in our lungs fill with fluid (pulmonary edema), the distance the gases must travel increases, and their transport decreases. Facilitated diffusion is diffusion that is helped along (facilitated by) a membrane transport channel. These channels are glycoproteins (proteins with carbohydrates attached) that allow molecules to pass through the membrane. These channels are almost always specific for either a certain molecule or a certain type of molecule (i.e. an ion channel), and so they are tightly linked to certain physiologic functions. For example, one such transporter channel, GLUT4, is incredibly important in diabetes. GLUT4 is a glucose transporter found in fat and skeletal muscle. Insulin triggers GLUT4 to insert into the membranes of these cells so that glucose can be taken in from the blood. Since this is a passive mechanism, the amount of sugar entering our cells is proportional to how much sugar we consume, up to the point that all our channels are being used (saturation). In type II diabetes mellitus, cells do not respond as well to the presence of insulin, and so do not insert GLUT4 into their membranes. This can lead to soaring blood glucose levels which can cause heart disease, stroke, and kidney
Related Questions
Which of the following happens because of mitosis? (Check all that apply)
Answers
Answer:
1,2
Explanation:
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. ... Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.
A human skin cell is observed. It is found to have two distinct nuclei each having 46 unreplicated chromosomes. These observations would be seen if the cell is in____.
a. G2 of interphase
b. metaphase of mitosis
c. S of interphase
d. telophase of mitosis
e. prophase of mitosis
Answers
Answer:
c
Explanation:
During the telophase stage of mitosis, a cell is observed with two distinct nuclei with 46 unreplicated chromosomes. Thus, the correct option is D.
What is Mitosis?
Mitosis is the process of cell division by which a cell replicates its chromosomes (genetic material) and then segregates that into two daughter cells, producing two identical nuclei in preparation for the division of cell. Mitosis is followed by equal division of the cell's content into two daughter cells with the identical genomes.
During the telophase stage of cell division, the spindle fibers attached to chromatids disappear. Once the daughter chromosomes arrive at the poles, a nuclear envelope starts reappearing around each set of chromosomes. And, at the end of telophase stage of mitosis, there are two nuclei in one cell, known as daughter nuclei that contains an exact copy of chromosomes.
Therefore, the correct option is D.
Learn more about Chromosomes here:
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Hey guys! I have a quick multiple choice question for you. 10 points!
Answers
Answer:
A
Explanation:
i have to say A but im not sure this is hard
meet. /vss-dkir-kfy interested only
Answers
Answer:
no <3
Explanation:
In DNA, different alleles of a gene have a different sequence of ___________________. Alleles may have a different sequence of ___________________ in RNA that result in a different sequence of _________________ in a protein. Therefore, proteins produced from different alleles of a gene may have different structures and functions and result in different characteristics.
Answers
Answer:
blood cotton dna
Explanation:
hahahahahaahahahaha
In DNA, different alleles of a gene have a different sequence of nucleotides. Alleles may have a different sequence of nucleotides in RNA that result in a different sequence of amino acids in a protein. Therefore, proteins produced from different alleles of a gene may have different structures and functions and result in different characteristics.
What are nucleotide?Nucleotides are the building blocks of DNA and RNA. They are composed of a sugar, a phosphate group, and a nitrogenous base. There are four types of nitrogenous bases in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). In RNA, the base thymine is replaced by uracil (U). The sequence of nucleotides in DNA or RNA determines the sequence of amino acids in a protein. Proteins are made up of long chains of amino acids, and the sequence of these amino acids determines the protein's three-dimensional structure and function.
Alleles are different versions of a gene. They can result from mutations or changes in the DNA sequence. Different alleles of a gene can produce proteins with different structures and functions, which can result in different characteristics in an organism. For example, the gene that determines eye color has several different alleles, which can result in different eye colors in people.
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Looking at the image of the freshwater lake ecosystem in the reading, can you name biotic and abiotic factors in this specific ecosystem? What changes in this ecosystem would impact the biotic factors?
Answers
Answer:
Biotic: Fish, Plants, Animals, Some bacteria in the water
Abiotic: Water, Sunlight, Rocks
Changes to any ecosystem can affect the way organisms live. It can be a big change like having to adapt to their surroundings. An example is being camouflaged, or having an increase in population. Bad changes can lead to population decline, or maybe even being extinct.
Explanation:
There isn't really an image to see, but I put what I could think would be in a lake ecosystem.
Where is the gene for eye color found in a cell
Answers
Answer:
OCA2 and HERC2
Explanation:
Unlike other careers in neurology, all doctors of neurology who want to apply for work in the US must first go through
certification.
licensing.
training.
a background check.
Answers
The correct answer is B. Licensing.
Explanation
The Neurologist is a doctor who has specialized in the study of diseases and disorders that affect the nervous system. When a person in the United States wishes to practice as a neurologist, they must follow some steps. You must first prepare to enter medical school by studying an area related to medicine such as chemistry, physics, biology, among others, which conceptually prepares you for the next step. In the second step, you must apply to medical school, where you will be put to the test with the Medical College Admission Test (MCAT) to measure your knowledge on this subject. Once you enter medical school, there you will learn for two years everything related to the necessary concepts and theory about medicine and later you will have to serve as a medical apprentice in university hospitals where you will apply what you learned.
Third, once the doctor has obtained his title that accredits him as a doctor, he must obtain one of the medical licenses that USMLE (United States Medical Licensing Examination) or COMLEX (Comprehensive Osteopathic Medical Licensing Examination of the United States ) doctors must have in the United States. Finally, the doctor must serve for three years as a resident in a hospital focused on an area related to Neurology and one more year of internship. According to the above, the correct answer is B. Licensing.
Which macromolecule provides the blueprint for living things by storing and transmitting genetic information?
Answers
Answer:
I think the correct answer is nucleic acid. There four major classes of macromolecules and these are lipids, carbohydrates, proteins and nucleic acids. Among these nucleic acid would best fit the definition. Examples of nucleic acids are DNA and RNA
What are the causes of hybrids
Answers
Answer:
when two animals of different species mate
Explanation:
1. If you were a transformer, what vehicle would you turn into?
2. What laws would you abolish if you could? What laws would you create?
3. If you were a food, what food would you be?
4. What animal would be way better if it was covered in scales?
5. What would be your strategy for a zombie apocalypse?
6. If you could be the CEO of any company, what company would you choose?
Answers
Answer:
1. I would turn into Lambo (black and neon green)
2. I would abolish the laws that require children to go to school. I would create a law saying that you can't be a stuck up p*rv if you want to be president.
3. I would be bacon. Don't ask.
4. Hedgehog. ;-;
5. Break into Ariana Grande's house and protect her.
6. Amazon because Jeff Bezos is literally the RICHEST man in the world atm.
Sorry it took so long T^T
This was fun doee
Which animal is likely to have the highest basal metabolic rate (oxygen consumption per unit body mass)?
Answers
Answer:
Hummingbirds
Explanation:
The animal which is likely to have the highest basal metabolic rate (oxygen consumption per unit body mass) Is the Hummingbird.
The hummingbird have a very small mass when compared to other animals or humans but they perform a lot of activities which is also the main reason why they consume volumes of nectar which is proportional to its size.
Which description is correct for both oogenesis and spermatogenesis?
The cells have 46 chromosomes until meiosis II is completed.
After meiosis I, the cells have 23 chromosomes.
Part of meiosis I is completed before birth.
The entire process takes about 70 days.
Answers
Answer:
After Meiosis I, the cells have 23 chromosomes
Explanation:
It is B
In meiosis there is a reductive phase (meiosis I) and the not reductive phase (meiosis II). Option B). After meiosis I, the cells have 23 chromosomes.
What is meiosis?Meiosis is a process by which, from a diploid germ cell (2n), four haploid cells (n) -the gametes, sperm and egg cells- are produced. This is the gametogenesis process.
Each daughter cell has half of the chromosomes of the original one.
There are two phases in meiosis:
the first one in which occurs a chromosome's reduction division, and the second one where the cell suffers a new division, but this one is not a reductive one.So, if the germ cell has 46 chromosomes, after meiosis I each new cell will have 23 chromosomes, because meiosis I is the reductive phase.
Option B is correct.
You can learn more about meiosis and gametogenesis at
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Why do plants need glucose?
Pls answer correctly I will give a brainless also
Answers
If a new moon is on June 1st then a full moon will occur on *
June 7.
June 21.
June 14.
June 28.
Answers
Answer:
june 28
Explanation:
Remoras are small fish that attach to sharks but do not harm them.When sharks tear prey apart,remoras eat the leftovers.What relationship do remoras have with sharks?
A.)Mutualism
B.)Parasitism
C.)Commensalism
D.)Predator-prey
Answers
Answer:c
Explanation:
Remoras are small fish that attach to sharks but do not harm them. When sharks tear prey apart, remoras eat the leftovers. ... Remoras and sharks have a mutualistic relationship
Which process releases energy from digested food?
A. photosynthesis
B. cellular respiration
C vitamin production
D. fertilization
Answers
Answer:
cellular respiration
Explanation:
Name the two high energy molecules that are produced during the light dependent reactions?
Answers
Answer: atp and adp
Explanation: atp is an unstable molecules which hydrolyzes to adp and inorganic phosphate when it is in equilibrium with water.
What are the items that attach on the inside of the mineral to give the mineral its shape
Answers
Answer:
Molecules.
Explanation:
Molecules are the items that attach on the inside of the mineral to give the mineral its shape. The molecule of a mineral is a crystal three-dimensional regular structure (arrangement) of chemical particles that are bonded together and determines its shape.
Due to the fact that, these molecules are structurally arranged or ordered and are repeated by different symmetrical and translational operations they determine the shape of minerals.
Which organelle is labeled I?
nucleus
mitochondrion
ribosome
chloroplast
Answers
Answer:
i think its d
Explanation:
What should one do if the results of an experiment consistently do not support the original hypothesis?
Answers
Answer:
Change the hypothesis to match the results.
Which of the following and closes their DNA in a nucleus?
Bacteria
streptococcus
Frogs
Coli
Answers
Answer:
the answer is coli
Explanation:
Where do the convection currents occur?
Answers
Answer:
In the mantle
Explanation:
They occur in the asthenosphere and mesosphere
∠A and \angle ∠B are supplementary angles. If m\angle A=(3x-23)^{\circ}∠A=(3x−23)
∘
and m\angle B=(2x-12)
∘
, then find the measure of \angle ∠B.
Answers
Answer:
[tex]B = 74[/tex]
Explanation:
Given
[tex]A=(3x-23)[/tex]
[tex]B=(2x-12)[/tex]
Required
Find B
Since A and B are supplementary, then:
[tex]A + B = 180[/tex]
Substitute values for A and B
[tex]3x - 23 + 2x - 12 = 180[/tex]
Collect Like Terms
[tex]3x + 2x = 180 + 23 + 12[/tex]
[tex]5x = 215[/tex]
Divide through by 5
[tex]\frac{5x = 215}{5}[/tex]
[tex]x = 43[/tex]
Substitute 43 for x in [tex]B=(2x-12)[/tex]
[tex]B = 2*43 - 12[/tex]
[tex]B = 74[/tex]
What type of energy is/are associated with cellular respiration?
Answers
Answer:
ATP
Explanation:
Answer:
light energy
Explanation:
Hope this helped
A rainforest is an example of a(n)
A)Ecosystem
B)Molecule
C) Organ system
D) Population
Answers
A molecule is microscopic.
An organ system is a human body function.
A population is a count of a species in a given area.
Therefore, A) Ecosystem is your best bet.
A Rainforest is an example of an Ecosystem. So, the correct option is A.
What do you mean by an Ecosystem?An ecosystem may be defined as the community of living organisms in conjunction with non-living components of their environment, interacting as a system.
Tropical as well as temperate rainforests consist of diverse animal life forms, insects, amphibians, and mammals. This area of an ecosystem lies around the equator within the tropics of cancer and capricorn. This area receives a high amount of light throughout the year.
Therefore, a Rainforest is an example of an Ecosystem.
To learn more about an Ecosystem, refer to the link:
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1) The main function of the circulatory system is to do which of the following?
A. Carry blood throughout a person's body
B. Take in oxygen for transport to the body
C. Distribute blood to the heart
D. Keeps a person's heart beating
Answers
Define photosynthesis, cellular respiration,
autotroph, heterotroph, herbivore, carnivore,
omnivore
Answers
Answer: Omnivore is an animal that eats both plants and animals.
Carnivore is an animal that eats only meat. Herbivore is an animal that eats only plants.
Heterotroph is an organism deriving its nutritional requirements from complex organic substances.
Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.
Explanation: Sorry they’re out of order in accordance to how you had them.
TOM CREATES A MODEL THAT SHOWS THE MOVEMENT OF THE TECTONIC PLATES OF THE EARTH'S SURFACE. IF HE WANTS TO USE THE MODEL TO UNDERSTAND THE CONCEPT OF HOW A MOUNTAIN IS FORMED, HOW DOES THAT MODEL HELP HIM? *
A. IT SHOWS ALL OF THE PLATES IN THE CORRECT LAYOUT.
B. IT EXPLAINS IN DETAIL HOW MOUNTAINS ARE FORMED.
C. IT DISPLAYS DETAILS THAT CANNOT BE SEEN IN A DRAWING.
D. IT SPEEDS UP A PROCESS THAT TAKES MILLIONS OF YEARS.
Answers
Answer:
a: i think
Explanation:
What is the name of that have the ability to develop into differen kinds of cells?
Answers
Answer:
mitosis
Explanation:
Answer:
Differentiation.
Explanation:
Hope this helped!