The diagrams show the sequence of events that occur as an action potential is conducted along an axon.
Drag each label to the appropriate location on the diagrams.
Answers
Action potential, Axon, Depolarization, Repolarization An action potential is an electrical signal that is conducted down the axon of a neuron. It is initiated when the membrane potential of the axon reaches a certain threshold and is followed by a series of events that result in the propagation of the signal. The diagrams show the sequence of events that occur as an action potential is conducted along an axon.
The first step is depolarization, in which the membrane potential of the axon reaches the threshold level and is exceeded. This causes the voltage-gated sodium channels to open, allowing sodium ions to enter the axon. This depolarizes the membrane and causes an influx of positively-charged ions. This depolarization spreads in an all-or-none fashion along the axon.
The second step is repolarization, which is the return of the membrane potential to its resting state. This is accomplished by the opening of voltage-gated potassium channels, which allow potassium ions to leave the axon. This causes the membrane potential to become more negative, restoring it to its resting state.
The action potential then continues along the axon in a “wave” of depolarization and repolarization. This process allows the action potential to travel along the axon, allowing the neuron to transmit signals to other neurons.
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Related Questions
PLSSS HELP! IF CORRECT, WILL MARK BRAINLIEST
Following the fusion of an egg cell and sperm cell, the resulting diploid cell divides by mitosis to create two new daughter cells. Each daughter cell contains pairs of chromosomes, with one set inherited from each parent.
Which of the following best describes the pairs of chromosomes that are present in each newly formed daughter cell?
Choose 1 answer:
A) The pairs are homologous chromosomes that have the same set of genes, but likely different variations of those genes.
B) The pairs are non-homologous chromosomes that contain different sets of genes.
C) The pairs are homologous chromosomes that have identical copies of every gene.
Answers
Answer: A
i have no idea why
The pairs are homologous chromosomes that have the same set of genes, but likely different variations of those genes. The correct option is A.
What are homologous chromosomes?Among a pair of chromosomes with the very same gene sequence, loci, chromosomal size, and centromere location is referred to as a homologous chromosome.
One paternal and one maternal chromosome make up a homologous pair. In humans, the nucleus of a somatic cell contains 46 chromosomes.
Homologous chromosomes differ from sister chromatids because they are not identical and do not emanates from the same organism.
Sister chromatids are identical, side-by-side duplicates of each other that form as a result of DNA replication.
Homologous chromosomes do not pair together during mitosis. Homologous chromosomes line up end-to-end in mitosis so that when the cells divide, each daughter cell receives a sister chromatid from both members of the homologous pair.
Thus, the correct option is A.
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how an atom change if all of its electrons are removed
Answers
Answer:
If all the electrons of an atom are removed, it will change to become a positively charged ion called a cation. Additionally, the loss of all of its electrons means there is no negative charge to balance the positive charges of the protons.
Explanation:
The food chain is attached to help with the 2 following questions:
What is the original source for this food web?
Describe how this food web contributes to the
Carbon cycle
Answers
Answer: berries and plantain. Each of those plants and animals are releasing and absorbing carbon, they either breath it out or when they die they release eit back into the atmosphere.
Explanation:
Which of the following can be determined by this diagram
A. The energy of the mongoose is passed on to the hare
B. The cheetah supplies energy to a variety of organisms
C. The Energy of the Acacia tree is passed to the impala
D. The aardvark ,pangolin , and mongoose are all producers
PLEASE HELP!!!
Answers
Answer:
c
Explanation:
The acacia tree is a producer that get eaten by the impala
The energy from the tree is given to the impala when it eats the tree
2.2 If you are going to plant the following, which minerals/ nutrients will need to be modified and how? (Refer to theme 7 for requirements) (20) Eragrostis curvula, 3.2 Lolium multiflorum, 3.3. Cenchrus ciliaris. 3.4 Medicago sativa
Answers
Among the plant species mentioned, only the Medicago sativa species needs soil modification for its planting.
Eragrostis curvulaCultivated in full sun, but tolerates partial shade. Rustic, not developed in terms of soil, it adapts to poor, dry or humid soils.
Lolium multiflorumThis weed can occur at various times in wheat
Cenchrus ciliarisPlanting is usually carried out by seeds, being a manual in general. Sowing can be carried out in pots, furrows or by casting, when carried out in the rainy season.
Medicago sativaFlat areas marked by deep, fertile, well-drained soils, free of ponds and pH between 6.7 are the forage's preferred.
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The United States generally uses the English system of measurement. Name two items you might purchase in a grocery store that are sold in metric (SI) units. Include the SI unit used for this product? answer 3-4 sentences
Answers
Answer: Two items you might purchase in a grocery store that are sold in metric units are bread and boxes of cereal.
Explanation:
EARTH SCIENCE PLEASE HELP!! WILL MAKE BRAINLIEST
Answers
search it up to make sure
If your house were to accumulate radon it would most likely accumulate in the
Answers
Answer:
Radon is a naturally occurring radioactive gas that can accumulate in homes and other buildings. It can enter the home through cracks and openings in the foundation and walls, as well as through gaps around pipes and wiring. Radon gas is odorless and colorless, making it difficult to detect without testing. In homes, the highest levels of radon are typically found in the basement or lowest levels of the home. The best way to prevent radon accumulation is to seal any cracks or openings in the foundation, walls, and around pipes or wiring. Additionally, homeowners should install a radon mitigation system if radon levels are found to be high.
How is molecular nitrogen (N2) utilized by plants and animals?
Before it can be utilized by plants and animals, molecular nitrogen (N2) must be converted by microbes that use N2 as a replacement for
Answers
Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. ... The nitrogen is passed through the food chain by animals that consume the plants, and then released into the soil by decomposer bacteria when they die.
Answer:
Oxygen ✓
Explanation:
That's it and it's actually simple and correct
what are some limitations that exist with the use of embryonic stem cells
Answers
After a child is born, new technologies enable doctors to collect any residual embryonic stem cells from the umbilical cord.
What are the Advantages and Disadvantages of Embryonic Stem Cell?
In vitro fertilized eggs are the source of embryonic stem cells, which are produced from the developing embryos that result from these fertilized eggs.With the donors' informed consent, these eggs are then donated for research. Scientists do not obtain embryonic stem cells from fertilized eggs in a woman's body.No one sells fetal tissue to create these cell lines, nor do women have abortions to collect their embryonic stem cells.A preimplantation stage embryo's cells are transferred to a culture dish in a lab to create human embryonic stem cells. After being blended with culture medium and given time to divide, the cells are spread out across the dish's surface.To learn more about Embryonic Stem Cell refer to:
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Which organelle makes the proteins that are needed by the cell?
cell membrane
Golgi apparatus
ribosomes
nucleus
Answers
Answer: The answer is "Ribosomes".
Explanation: Ribosomes are responsible for making protein through amino acids. The proteins created are essential to cell and organismal function. Some ribosomes are attached to the endoplasmic reticulum (rough ER), others float freely within the cytoplasm.
Answer:
ribosomes is right
Explanation:
i just did it and passed sooooo
Drag each tile to the correct location on the image. Place the labels to describe the role of the lungs and blood in transporting oxygen and carbon dioxide in the body. Blood cells transport carbon dioxide to the lungs. Oxygen from the lungs enters the alveoli in the lungs. Red blood cells supply oxygen to the cells of different organs in the body. Oxygen enters the red blood cells in the capillaries. Red blood cells collect the waste carbon dioxide.
Answers
Answer:
the circle is called kreb circle
Top Left Box:
Oxygen from the lungs enters the alveoli in the lungs.
Middle Left Box:
Oxygen enters the red blood cells in the capillaries.
Bottom Left Box:
Red blood cells supply oxygen to the cells of different organs in the body.
Bottom Right Box:
Red blood cells collect the waste carbon dioxide.
Top Right Box:
Blood cells transport carbon dioxide to the lungs.
Explanation:
I got it right, also the picture.
What is the healing process after clot formation involves?
Answers
The healing process after clot formation involves Caught retraction, repair of the damaged vessel by fibroblasts, repair of the wound by division of epithelial cells, and clot dissolution.
What follows clot formation?Once the blood clot has formed, the damage is repaired by the immune system of your body. At this stage of the procedure, substances in your blood begin to dissolve the blood clot. Your blood won't clot as well if it doesn't have enough platelets or other clotting components.
To seal the wound, platelets bind together to form a plug. Then a clot develops on top. Both the wound and the clot disappear. To totally stop the bleeding, a stronger clot is required because the platelet plug can't stop the bleeding for very long on its own.
What phases of clot formation are there?Vasoconstriction, platelet adhesion, platelet activation, and platelet aggregation are the four stages that lead to primary hemostasis, which is the creation of a weak platelet plug. When there is vascular injury, vasoconstriction is the immediate response.
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consumers depend on the fda and the ________ to keep pesticide use within safe limits.
Answers
Consumers depend on the FDA (Food and Drug Administration) and the EPA (Environmental Protection Agency) to keep pesticide use within safe limits.
The FDA and the EPA play crucial roles in regulating and monitoring pesticide use to ensure consumer safety and environmental protection.
The FDA is responsible for regulating the safety of food, including pesticide residues in food products. They establish and enforce standards for pesticide use on agricultural crops to ensure that the levels of pesticide residues in food are within safe limits. The FDA conducts risk assessments and sets tolerance levels for pesticide residues to protect public health.
The EPA, on the other hand, is primarily responsible for regulating pesticide use and ensuring environmental protection. They assess the potential risks of pesticides to human health and the environment before granting approval for their use. The EPA establishes regulations and guidelines for pesticide registration, labeling, and application practices to minimize the adverse effects of pesticide use on both human health and the environment.
Consumers rely on the FDA and the EPA to establish and enforce regulations that keep pesticide use within safe limits, reducing the risks associated with pesticide exposure in food and the environment. These agencies work together to conduct research, set standards, and monitor pesticide use to safeguard public health and environmental integrity.
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List all 3 parts to Cell Theory
Answers
2. These cells are the basic unit structure and organization in a organism.
3. All cells come from other pre-existing cells.
Taxes that are paid by individuals on all money earned, including investments, are
.
Taxes that are paid by homeowners to state and local governments are
.
Taxes that businesses are required to pay on their earnings throughout the course of a year are
.
1.progressive.
2income
3corporate
1.property
2.regressive
3.corporate
1. direct
2. proportional
3. corporate
Answers
Taxes that are paid by individuals on all money earned, including investments, are income tax, option 2.
Taxes that are paid by homeowners to state and local governments are regressive tax, option 2.
Taxes that businesses are required to pay on their earnings throughout the course of a year are corporate tax, option 3.
Why are taxes paid?Taxes are compulsory offerings levied on individuals by a government either locally, regionally or on a national level. Income taxes for example are a means that allow the government to generate revenues.
There are various forms of taxes including, progressive, corporate levied on businesses, regressive for home owners, income tax for individual earners, property tax, direct tax, etc.
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list the different methods of antibiotic resistance that a mutation can give a bacterium:
Answers
Answer:
I would answer for you but i don't know it, I hope you find it tho good luck!!
What if the SHH you are making needs to be accumulated in the cell so that it can be released all at once into the extracellular space at a specific time? How would you store the produced SHH? What would need to occur to release all of the SHH from storage into the extracellular space?
Answers
If SHH is to be accumulated and then released into cellular space at a specific time, it would be necessary to establish storage mechanisms and release mechanisms.
To store the produced SHH would require specialized cellular compartments.
To release all of the stored SHH, a signal or stimulus would need to trigger the release of SHH from storage into the extracellular space.
What steps would the SHH storage and release process take place?SHH production.Storage.Storage regulation.Production of the SHH release signal.SHH release.SHH is a protein that is stored within the cell and is released into the extracellular space in times of need. These processes need to work in a very regulated way in order to achieve their objectives. For this reason, well-regulated and optimized storage and release mechanisms are needed.
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Help me please!!
Topic
Who Thought This?
Lamarck, Darwin,
or both?
1. Organisms have change over time.
2.
Organisms changed because they wanted to survive.
3.
There was variation in a population.
4.
Certain traits helped organisms survive and reproduce
Better than other organisms without those traits.
5. Organisms can never become extinct.
6. The environment had something to do with why
organisms changed.
7. Parents are able to pass on at least some of their traits
to their offspring.
8. Parents are only able to pass on traits that they were
born with.
9. Organisms could decide to change something about their
body and pass on that change to their offspring.
10. Organisms are still changing.
Answers
Answer:
1. Both
2. Lamarck
3. Darwin
4. Darwin
5. Lamarck
6. Both
7. Both
8. Darwin
9. Lamarck
10. Both
Explanation:
in 1, we need time therefore both. In 2, Lamarck because in Darwinian evolution, species change not organisms. In 3, Darwin because of natural selection, mutation, and probably a little bit of heredity. 4 is Darwin because in Lamarckian evolution. 5 is Lamarck because based on natural selection, organisms should go extinct. 6 is both because they both rely on the environment. 7 is both because of heredity. 8 is Darwin because in Lamarckian evolution, traits acquired throughout ones lifetime can be passed down to offspring. 9 is Lamarck because in Darwinian evolution, organisms do not decide their traits. 10 is both because both idea ssupport the idea that organisms, be it in Lamarckian or Darwinian evolution, are still and will carry out on changing.
Which of the following statements correctly identifies a keydifference between mitosis and meiosis?(A) In metaphase of mitosis, replicated chromosomes line upin single file; in metaphase II of meiosis, replicated chromosomes line up on opposite sides of the metaphaseplate.(B) During anaphase of mitosis, homologous chromosomes separate; during anaphase of meiosis I, sister chromatidsseparate.(C) At the end of telophase of mitosis, the daughter cells areidentical to each other; at the end of meiosis I, the daughtercells are identical to the parent cell.(D) During metaphase of mitosis, centromeres are presentdirectly on the metaphase plate; during metaphase of meiosisI, there are no centromeres on the metaphase plate.
Answers
The statements that correctly identifies a key difference between mitosis and meiosis is option D: During metaphase of mitosis, centromeres are present directly on the metaphase plate; during metaphase of meiosis I, there are no centromeres on the metaphase plate.
In mitosis, during metaphase the replicated chromosomes align along the metaphase plate with their centromeres at the center. In meiosis I, the replicated chromosomes align along the metaphase plate without the centromeres present.
Mitosis is referred as the process by which a cell replicates its chromosomes and then segregates them apart, producing two identical nuclei in preparation for cell division. It is an established fact that mitosis is generally followed by equal division of the cell's content into two daughter cells that have identical genomes.
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What topic level do herbivores occupy in a food chain
Answers
Answer:
herbivores are primary consumer, which means they occupy the second trophic level and eat producer
How energy flows into and out of the ecosystems
Answers
Answer:
energy is flowing out of the ecosystem as you move up trophic levels
Help scienceHelp scienceHelp scienceHelp scienceHelp science
Answers
Answer:
He is yellow.
Explanation:
A qualitative observation is based on objective fact and does not contain numerical values.
state birth control methods according to Islam view?
Answers
Answer:
Barrier methods. Examples include male and female condoms, as well as the diaphragm, cervical cap and contraceptive sponge.
Short-acting hormonal methods. ...
Long-acting hormonal methods. ...
Sterilization. ...
Fertility awareness methods.
C. Shoot - Answer questions
1. What is biodiversity ?
Answers
Answer:
the variety of life in the world or in a particular habitat or ecosystem.
Explanation:
Biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.
Positive and Negative Energy Balance
A healthy weight can be achieved by increasing focus on the importance of energy balance. Determine whether each label is a component of the "energy input" or the "energy output" side of the energy balance equation. Drag the label to its appropriate classification
Energy input:__
Energy output:__
A. Walking with friends
B. Digesting a meal
C. Drinking a glass of wine
D. Shivering in response to cold
E. Eating a grilled chicken salad
Answers
Positive and Negative Energy Balance ,A healthy weight can be achieved by increasing focus on the importance of energy balance. Energy input : digesting of meal, eating a grilled chicken salad.
A positive energy balance, in which energy intake exceeds expenditure causes weight gain, with 60–80 % of the resulting weight gain being attributable to body fat. In negative energy balance, when energy expenditure exceeds intake, the resulting loss in body mass is also accounted for by 60–80 % body fat.
Energy balance is important. When you consume too much energy and burn too little, your body stores that excess energy as body fat. Energy inputs, broadly speaking, comprise the energy equivalents of depreciation on machinery, energy to heat the digestors, and electricity to run the process. An energy balance helps us understand how products are transformed into one another, highlight the various relationships among these products, and show how all energy types are ultimately used.
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what does a Cell membrane look like
Answers
The cell membrane is not a solid structure. It is made of millions of smaller molecules that create a flexible and porous container.
Explanation:
Which component of blood allows oxygen from the air to move from the lungs to cells of the body?
white blood cells
platelets
plasma
red blood cells
Answers
Oxygen is very essential for the survival of organisms. The component of blood enable oxygen from the environment to move from the lungs to cells of the body are red blood cells.
What are red blood cells?Red blood cells, also known as red blood corpuscles, haematids, erythroid cells, and erythrocytes.
These are the most prevalent form of cells of blood and the vertebrate's primary mechanism of supplying oxygen to body tissues through blood flow with the help of hemoglobin.
It has hemoglobin that helps for the transport of oxygen from lungs to cells of body.
Thus, the correct option is D.
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How would a lack of contact inhibition result in growth and spread of cancerous cells
Answers
Answer:
Abstract. Contact inhibition enables noncancerous cells to cease proliferation and growth when they contact each other. This characteristic is lost when cells undergo malignant transformation, leading to uncontrolled proliferation and solid tumor formation
Question 9
The diagram below shows a cellular process. What is the correct sequence of these stages?
3
с
D
A
A-B-C-D
B
C-B-D-A
с
B-D-C-A
D
D-B-A-C
Answers
Answer:
bdca
Explanation: