Which of the following is an example of active transport?
A. osmosis of water across the cell membrane
B. transport of glucose into a cell
c. the sodium-potassium pump found in nerve cells
d. none of the above

Answers

Answer 1
Active transport is any process that requires energy to diffuse. Osmosis happens naturally, so this can be ruled out. The transport of glucose can be active (since the molecule is too large to enter a cell naturally), but it can also be passive. To be safe, I'd use the sodium-potassium pump: if I remember correctly, that's always active since ATP must be used for it to happen. I'd check to be sure though. Hope this helps!
Answer 2

Any process that requires energy to diffuse is considered active transport. Since osmosis occurs naturally, this can be disregarded. The correct option is C.

Thus, the molecule is too big to normally enter a cell, glucose transport can either be active or passive.

A vital membrane protein present in animal cells, including nerve cells, is the sodium-potassium pump. In opposition to their concentration gradients, it actively transfers potassium ions (K+) into the cell and sodium ions (Na+) out of the cell.

This pump preserves the gradients in these ions' concentrations, which are essential for a number of cellular functions include nerve impulse transmission and maintaining cell volume.

Thus, Any process that requires energy to diffuse is considered active transport. Since osmosis occurs naturally, this can be disregarded. The correct option is C.

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Related Questions

What is the life expectancy of stage 4 sarcoidosis?

Answers

To calculate life expectancy you need to know how much the disease severity, risk factor the patient had and the complication that already occurs. In general, 90% of stage IV sarcoidosis patient will survive in 5 years, and 80% will survive for 15 years. 

When you touch something hot a neuron in your finger senses the temperature which best describes the first reaction the neuron has?

Answers

a action potential forms.

Answer:

an action potential forms

Explanation:

i took the test and i got it right :)

True or false? the ovaries secrete a hormone that assists with labor and delivery.

Answers

This is false! They do not.


In what location would primary succession most likely occur? An area that was covered by a glacier An area that was in a long drought An area that had severe flooding An area that was hit by a hurricane

Answers

An area that was covered by a glacier

Primary succession is a method of bringing about fertility in infertile land that can not be cultivated. This method usually involves plant species known as "pioneer species", that do not rely heavily on soil nutrients but add nutrients to the soil. The land under the glacier is likely to be void of nutrients and infertile, so primary succession will be needed there the most.

I just took the module 3 exam and the answer would be "An area covered by a glacier". :)

where is dissolved oxygen likely to be lowest

a) At the bottom of a deep lake
b) In the fastest part of a stream
c) along the edge of a fast river
d) at the surface of a tidal pool

Answers

The answer is A. at the bottom of a deep lake (Apex)


Answer:

Explanation:

A) At the bottom of a deep lake

Which type of lipoprotein transports newly digested fat from the intestine through the lymph and blood?

Answers

Chylomicron is a type of lipoprotein transports newly digested fat from the intestine through the lymph and blood.

Chylomicron is usually formed in the small intestine of the body and helps in the motion of cholesterol and fats in the bloodstream (water-based solution). 

According to the ipat model, technology that enhances our acquisition of minerals, fossil fuels, timber, and ocean fish ________.

Answers

According to the ipat model, technology that enhances our acquisition of minerals, fossil fuels, timber, and ocean fish increase environmental impact.
IPAT is a model or equation which expresses that 
I (stands for Environmental impact) is the product of three factors: P (stands for population), A (is affluence) and T ( for Technology). 
IPAT can be written as  (I=PAT) or I = pxAxT
Final answer:

In the IPAT model, technology that improves our ability to acquire resources like minerals, fossil fuels, timber, and ocean fish generally increases the environmental impact because it boosts our capacity to exploit these resources.

Explanation:

According to the IPAT model, technology that enhances our acquisition of minerals, fossil fuels, timber, and ocean fish increases the impact on the environment.

The IPAT equation, which stands for Impact equals Population, Affluence, and Technology, suggests that our environmental impact (I) is the product of population size (P), affluence (A), and technology (T).

Thus, technology that enhances resource acquisition typically does so by increasing our capacity to exploit these resources, thereby increasing the environmental impact.

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describe the modern atomic model of oxygen

Answers

The Oxygen is the Element with atomic number 8 on the Periodic Table of the Elements. It is a colorless gas, noted with the symbol O. Every atom consists of a positively charged nucleus surrounded and neutralized by negatively charged electrons revolving in orbits at varying distances from the nucleus, The atom of the oxygen has 2 first energy levels and 6 second energy levels.

Final answer:

The modern atomic model of oxygen incorporates electron configuration, hybridization, and molecular orbital theory to explain the complex bonding and properties of oxygen atoms, highlighting the dynamic nature of electron interactions and molecular structure.

Explanation:

The modern atomic model of oxygen, according to current understanding in Chemistry, is significantly more advanced than the early models of the atom. In this model, oxygen is depicted as having eight protons in the nucleus, surrounded by a cloud of electrons. The electron configuration of oxygen is 1s²2s²2p⁴, which outlines that there are two electrons in both the s orbitals, and four electrons in the p orbitals. However, when oxygen forms covalent compounds, the concept of hybridization comes into play, altering the atomic orbitals into hybrid orbitals that can bond more effectively with other atoms. According to the molecular orbital theory (MO theory), the atomic orbitals of individual oxygen atoms combine to yield molecular orbitals that are delocalized over the entire molecule, such as in O₂. This intricate bonding explains why oxygen has a property called paramagnetism and how electrons are distributed within molecules. Thus, the modern atomic model is characterized by its emphasis on electron energies, probabilities, and molecular interactions, moving beyond static, simplistic representations of atoms to more dynamic and complex ones.

Explain how poaching can lead to over utilization of species

Answers

As we know that poaching is an illegal hunting or killing of animals. There are many countries where animals are poached. Poaching of animals happened due to many reasons. Like for an ivory, elephants are poached.

People who poached animals, do not care for them, they just kill or hunt animals for their own benefits. Some people have demand for ivory and some people poached elephants to get ivory. This could lead to over-utilization of animals.

The large proximal projection on the femur is termed the

Answers

The large proximal projection on the femur is termed the Trochanter.

In a genotype for plant height, such as tt, what does each letter represent?

Answers

tt in this example are both recessive

Johnny's teacher asked him to explain how to make a wet-mount slide to the rest of the class. Here is Johnny's response: "Well, you start by putting a few drops of water on a clean slide. Once you have obtained your specimen, you carefully place your specimen down on the drops of water on top of the slide at a 45 degree angle. You add a few more drops of water, then lower the cover slip over the specimen."
   
Was Johnny's description correct?
 
A. No, you don't need to add water to the slide after adding the specimen.
 
B. No, he forgot to heat up the water before adding it to the slide.
 
C. Yes, he did not make any mistakes.
 
D. No, the cover slip needs to be lowered at a 45 degree angle, not the specimen.

Answers

The correct answer is letter a, it is because in wet drop method, it does not need to add water after placing the specimen because adding water before placing the specimen in the glass slide is already enough and after placing the specimen, a cover slip is the last step in finishing the method. That is why Johnny is not correct in doing the procedure.

1. How could you test to see if an enzyme was completely saturated during an experiment?

Answers

Final answer:

To test if an enzyme is completely saturated during an experiment, the reaction rate is measured at different substrate concentrations. If the reaction rate reaches a maximum and does not increase further even with higher substrate concentrations, it indicates the enzyme is completely saturated with substrate.

Explanation:

The presence of complete saturation of an enzyme during an experiment can be determined through various methods. One common method is to measure the reaction rate (velocity) of the enzyme at different substrate concentrations. As the substrate concentration increases, the reaction rate initially increases. However, at a certain point, further increasing the substrate concentration does not result in an increase in the reaction rate.

When the reaction rate reaches a maximum and does not increase even with higher substrate concentrations, it indicates that the enzyme is completely saturated with substrate. This is referred to as saturation kinetics.

By plotting the reaction rate versus substrate concentration, you can observe the point at which the reaction rate plateaus, indicating enzyme saturation.

describe specialized feeding structures of parasitic platyhelminthes

Answers

The other name for Platyhelminthes is flatwarms. These soft-bodied, bilaterally symmetrical, invertebrate animals have an incomplete digestive system. They have muscular and excretory systems. The muscular system allows them to move from place to place over solid surfaces, while the excretory system lets them maintain a proper balance of water and salts.Flatworms have shuckers  for feeding and they absorb nutrients directly from the host’s digestive system with their shuckers. 

Ergonomic hazards are major safety for nurses causing serious musculoskeletal injuries to reduce the risk nurses should

Answers

1. Never lift or move clients
2. Take up weight lifting
3. stretch out after pulling or reaching
4. Use assistive devices

Which of the following properties of soil helps in absorbing contaminants from the soil?
a.
cation-exchange capacity
b.
soil reaction
c.
soil structure
d.
soil consistency

Answers

the answer to your question is c. soil structure

Correct answer: C). Soil Structure

The soil structure refers to the arrangement of the soil into a unit known as soil aggregates. The aggregates consist of solids and porous space. It majorly consists of clay particles, and it may also contain fine particles of sand.

They absorb air pollutants, which dissipate the harmful pollutants. The absorbed pollutants are recycled back into nutrients.




What is speed of bobsled whose distance time graph indicates that it traveled 122m in 25 s

Answers

4.88 meters per second
Good luck and have a nice day.

Moth populations changed from mostly light colored to mostly dark colored in the 1800s. this relates to _____. answers

Answers

The correct answer to this is:

“Microevolution”

Microevolution is an evolutionary change that occurs to small group of species within a short span of time. The cause of this occurrences are most commonly an external factor. For the case of moth, the soot produced by the Industrial Revolution in the 1800s resulted in trees to darken and other places in England where moths liked to perch. Because of this, light colored moths were more easily identified by predators against a dark background. Dark colored moths had a larger survival advantage since they could blend in against a similarly dark background. Natural selection or microevolution favoured the darker moths, therefore their proportion within the moth population increased.

Microevolution is the right answer.  

Microevolution is the development in allele regularities that befalls over time within a culture. This variation is due to four distinct methods: mutation, adaptation (artificial and natural), gene flow and hereditary drift. This development occurs over a comparatively short span of time than the development takes place under the term macroevolution that is where greater diversity in the community befalls.

The discovery of cosmic microwave background radiation and primordial helium gas was scientific evidence supporting the _____.

Answers

The discovery of cosmic microwave background radiation and primordial helium gas was scientific evidence supporting the "Big Bang Theory".

"The Big Bang Theory"

An arterial condition in which there is thickening, hardening, and loss of elasticity of the walls of arteries—resulting in decreased blood supply—especially to the lower extremities and cerebrum is known as hardening of the arteries

Answers

Atherosclerosis is a disorder in which arteries become narrowed because of cholesterol, becomes hardened by fibrous tissue and calcification. This can cause heart attack or stroke.

How does energy get converted from food molecules to muscles?

Answers

gives u more energy and energy from protein and that build muscle

btw my biceps are massive


Final answer:

Energy conversion from food molecules to muscles involves a process known as cellular respiration. In this process, the energy stored in glucose, obtained from food, is converted into ATP, a high-energy molecule. ATP powers various cellular processes, including muscle contraction.

Explanation:

Energy conversion from food molecules to muscles happens through a biological process known as cellular respiration. When we eat food, our digestive system breaks down the complex nutrients into simpler forms like glucose. This glucose is transported to cells, including muscle cells, through the bloodstream.

In the cells, glucose undergoes a process called cellular respiration, which occurs in the mitochondria. In a three-step process - glycolysis, Krebs cycle, and electron transport chain - the energy stored in glucose is converted into adenosine triphosphate, or ATP. ATP is a high-energy molecule that powers numerous cellular processes, including muscle contraction.

Hence, it’s through this series of reactions in cellular respiration that the energy from food molecules gets converted and used in muscles.

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When communicating with a client with a psychiatric diagnosis, the nurse uses silence. when silence is used in therapeutic communication, clients should feel:?

Answers

When communicating with a client with a psychiatric diagnosis, the nurse uses silence. When silence is used in therapeutic communication, clients should feel;

1. It is the patients turn to talk.
2. The answer from a patient should not be in a hurry.
3. The nurse expects that further communication between him and the patient is not necessary.
4. The nurse is thinking about how to interact with the patient.

The coral never holds quite the pink I hope for and fish continue to catch strange sickness like the angel fish, Greta who has a parasite. What does the word parasite mean

Answers

A parasite is an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense. Hope I helped!
A parasite is an organism that survives in a non-mutual relationship by obtaining nutrients from the host organism or lives off the host organism. In the case of parasitism, the host is harmed while the "parasite" receives benefits that could range from nutrients to shelter. This strange sickness the Angelfish is receiving is most likely due to the parasite in this instance deriving nutrients from the organism and depleting it's immune system or a disease passed on by a parasite. Hope this helped! :)

Which of the following led to dividing bacteria into two distinct kingdoms? A. Being able to do microscopic and DNA analysis B. Being able to examine gigantic pre-historic fossils C. Knowing how bacteria eat D. Watching bacteria move

Answers

A DNA evidence provides the strongest support for the current Eubacteria phylogeny.

How do striated and smooth muscles differ?

Answers

I have also given you the skeletal muscle difference ......
For extra knowledge ......
hope it helps u ....then mark me as brainliest

Sociologically speaking, the BRCA1 gene mutation is a good example of:

Answers

The BRCA1 gene mutation is a mutation of a gene that suppresses cancer. Therefore, those  mutations, when we can detect them, tell us that a persona is likely to develop cancer and can undertake some preventive measures, such as a preventive mastectomy.

It can be seen as an example of a disease that is predictable and which is changed through social practices - our social practices (prevention) change how this gene is expressed (it no longer necessarily lead to cancer)

A person who is heterozygous for the huntington disease (hd) allele has offspring with someone who does not have hd. what proportion of their children will have hd?

Answers

A person who is heterozygous for the huntington disease (hd) allele has offspring with someone who does not have hd. The proportion will be 1/2.
Hetrozygous is a genetic term and it refers to an organism which has two different alleles for a trait.
Huntington disease is a fatal genetic disorder or inherited disease, which causes the progressive breakdown of nerve cells in the brain.

Answer:

A person who is heterozygous for the Huntington disease (HD) allele has offspring with someone who does not have HD. What proportion of their children will have HD? ... Half the children have the disorder, both sons and daughters.

Explanation:

N ohio, untreated waste from a marine toilet may not be discharged into the water. untreated waste must be carried onboard until it can be properly emptied at a pump-out station or at which type of approved treatment facility?

Answers

Untreated waste must be carried on board until it can be properly empty at a pump out station or IN AN APPROVED SEWAGE TREATMENT WORKS. On Ohio waters, it is a law that no vessel should discharge untreated waste into the waters. Such wastes should be drained into reservoirs that can be carried or pumped ashore for disposal.

What is a glucose standard curve, and why did you need to obtain one for this experiment? did you correctly predict how you would measure the amount of plasma glucose in a patient sample using the glucosestandard curve?

Answers

what are the choices?
Final answer:

A glucose standard curve refers to a method used to quantify the amount of glucose in a given sample. In experiments, it's critical in estimating the concentration of glucose through comparative analysis with the standard curve's responses. To measure plasma glucose in a patient sample, you would compare the reactions from the patient's sample with the glucose standard curve.

Explanation:

A glucose standard curve is a method used in biological and chemical research, particularly when quantifying the amount of glucose in a sample such as plasma. It's essentially a graph that depicts the response received from the glucose test (like color change) as a function of known glucose concentrations. The plot provides a reference to assess glucose levels in unknown samples.

In an experiment, obtaining a glucose standard curve is crucial for extrapolating the concentration of glucose in a patient's plasma sample. This is achieved by comparing the test results from the unknown sample to the standard curve. The level of color change (caused by glucose's reaction with certain chemicals) in the patient's sample, compared to those in the standard curve, will suggest a corresponding concentration of glucose.

Yes, you predicted correctly. To measure plasma glucose in a patient sample, you would use the responses from the patient's sample and compare them with the glucose standard curve. This method allows for an accurate estimation of glucose concentrations, offering valuable information for diagnostic purposes.

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Sandra has been having pains just under her diaphragm and a little to the right of the center of her body. They seem to be especially painful after she has eaten fatty food. Which of the following would be best for her to ask her doctor to help her investigate?

 If her pancreas is still secreting bile 
If the lining of her stomach has been damaged
 If her small intestine has enough fat-digesting enzymes
 If something is wrong with her gallbladder

Answers

Hi.

She should ask her to doctor to investigate for Atherosclerosis. This typically happens when you eat foods high in Trans Fats.

Answer:

If her small intestine has enough fat-digesting enzymes

Explanation:

The organ which is referred in the question is duodenum of the small intestine. In the duodenum, pancreatic juice containing fat digesting enzyme, lipase is poured. The pancreas releases the pancreatic juice. If lipase, a fat digestion enzyme is not secreted in sufficient amount in the duodenum, the digestion of fats will be hampered which may results in pain below the diaphragm.

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