Why might it be important to move nutrients into a cell even when the concentration gradient is going the opposite direction?

Answers

Answer 1

I hope it can help you a lots Thanks.

Introduction

Passive transport(Opens in a new window) is a great strategy for moving molecules into or out of a cell. It's cheap, it's easy, and all the cell has to do is sit there and let the molecules diffuse in. But...it also doesn't work in every situation. For instance, suppose the sugar glucose is more concentrated inside of a cell than outside. If the cell needs more sugar in to meet its metabolic needs, how can it get that sugar in?

Here, the cell can't import glucose for free using diffusion, because the natural tendency of the glucose will be to diffuse out rather than flowing in. Instead, the cell must bring in more glucose molecules via active transport. In active transport, unlike passive transport, the cell expends energy (for example, in the form of ATP) to move a substance against its concentration gradient.

Here, we’ll look in more detail at gradients of molecules that exist across cell membranes, how they can help or hinder transport, and how active transport mechanisms allow molecules to move against their gradients.


Related Questions

Yui grew up eating whatever she wanted. Like most children, she preferred junk food to vegetables. Her parents decided it was not worth fighting to develop healthy habits and that her taste would change when she was older. What is the disadvantage of this approach?

A.
It gives Yui a lot of independence when choosing foods.

B.
Very few people have their tastes change when they are older.

C.
Yui is not likely to choose healthy foods she has not been exposed to.

D.
Yui’s parents will have fewer fights at the dinner table with this approach.

Answers

Answer:

C.BECAUSE SHE IS USED TO JUNK FOOD AND NOT HEALTHY ONES SO IT'S A BIG DISADVANTAGE WHEN COMING TO HEALTHY BODY

The disadvantage of this approach is that Yui is not likely to choose healthy foods she has not been exposed to. So, the correct option is C.

What are Habits?

A habit is defined as a routine of behavior that is regularly repeated and occurs subconsciously. Habit is described as a more or less fixed way of thinking, desiring, or feeling through past repetition of mental experience.

Habit can be any part of an activity, from eating and sleeping to thinking and reacting, that develops through reinforcement and repetition. These are also called as daily behaviors we do by default.

In the above given information, not eating healthy foods is the habit of Yui.

Thus, the disadvantage of this approach is that Yui is not likely to choose healthy foods she has not been exposed to. So, the correct option is C.

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Which of the following statements describes weight cycling?

The weight loss during weight cycling is usually water weight.
Weight cycling occurs when an individual loses weight rapidly but then regains the weight.
Weight cycling makes losing weight harder and harder.
All of the above

Answers

Answer:

Weight cycling occurs when an individual loses weight rapidly but then regains weight.

Explanation:

Regarding the effects of socioeconomic status (SES), which of the following statements is FALSE?
The IQs of high SES children are more dramatically influenced by environmental factors than the IQs of low SES
children.
One way to look at environmental effects is to compare children adopted by parents of high or low SES.
The higher SES homes provide an enriched environment, with better nutrition, greater educational opportunities,
and other advantages
Children who grow up in high SES homes develop higher IQs than those reared by lower SES parents.

Answers

The IQs of high SES children are more dramatically influenced by environmental factors than the IQ of low SES.

l

What is social economic status?

Socioeconomic status is used to measure and individual or family based on worth, access resources and economic status.

An individual socioeconomic status (SES) is made up of many variables such as;

incomeeducation leveloccupations.

Therefore, The IQs of high SES children are more dramatically influenced by environmental factors than the IQ of low SES.

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what happened is carbohydrate is less or more in our body​

Answers

When you don't get enough carbohydrates, the level of sugar in your blood may drop to below the normal range (70-99 mg/dL), causing hypoglycemia. Your body then starts to burn fat for energy, leading to ketosis. [tex] \\ [/tex]

Injuries are categorized in 4 ways. List the 2 that are missing.

Answers

Unpreventable and Unintentional are the injuries that are missing on the list.

What is an Injury?

This is defined as physical harm or damage to someone's body caused by an accident or an attack.

Injuries are categorized in 4 ways and they include:

PreventableIntentionalUnpreventableUnpreventable

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Which of the following is the best
A.
example of the function of the peripheral nervous system?
B.
It connects the central nervous system to the rest of the body.
It commands the rest-and-digest and fight-or-flight functions of the body.
C. It connects the central nervous system to the muscles of the body.
D.
It commands reflexes, digestion, heartbeat, and other functions of the body.

Answers

The answer is B. Peripheral nervous system connects the central nervous system to the rest of the body.

What are standard precautions

Answers

Answer:

Explanation:

Standard precautions are a set of infection control practices used to prevent transmission of disease that can be acquired by contact with blood, body fluids, non-intact skin ( including rashes) , and mucous membranes. Standard precautions are the basic level of infection control that should be used in the car of all patients all of the time.

What is peripheral neuropathy​

Answers

Answer:

Peripheral neuropathy, is a result of damage to the nerves located outside of the brain and spinal cord

Answer:

Peripheral neuropathy is the result of nerve damage near the spinal cord and brain.

Explanation:

Hope that helps!

Mrs. son glues a rectangular picture that is 7 inches long and 4 1/2 inches wide on a piece of rectangular paper. The edge of the rectangular paper measures 1 inches from the edge of the picture on each side as shown. ⇒

Answers

Answer:

i dont know

Explanation:

i dont know im looking for the same answer

a food worker has safely cooled a large pot of soup to 70 degrees within two hours. what temperature must the soup reach in the next four hours to be cooled properly

Answers

\huge \tt \: ✎union \: and \: intersection✎unionandintersection

\large \rm \: the \: set \: of \: all \: elements \: of \: \: two \: sets\: is \: the \:\large \green{{ \sf{union.}}}thesetofallelementsoftwosetsistheunion.

\large \rm \: the \:set \: composed \: of \: common \: elements \: in \: two \: sets \: is \: the \: \large \green{{ \sf{intersection.}}}thesetcomposedofcommonelementsintwosetsistheintersection.

{Suppose A = {a, b, c} B={c, d, }. \: A∩B = {c} A∪B = {a,b,c,d}.

\begin{gathered} \large \tt solution : \\ \large \green{{ \sf{understand \: the \: concept \: of \: intersection \: and \: union.}}}\end{gathered}

solution:

understandtheconceptofintersectionandunion.

{ \large { \pink{ \overline{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}}}

{} \ _{ \red{ \heartsuit}}

The temperature that must the soup reach in the next four hours to be cooled properly is 55⁰ F. The correct option is 4.

What is temperature?

Temperature is the degree to measure of the coldness or hotness of any object. Temperature is measured in kelvin and Celsius. The heat always travels from a hot body to a cold body.

The soup is made up of vegetables and broth, and it is a liquid and healthy thing to eat. It is made and served warm. The food worker is making a pot of soup that is 70 degrees, and it will be served warm.

The minimum temperature of the soup to get warm is 55⁰ F. The soup should be cooled down to 55⁰ F to serve to the people. The large pot of soup is cooled down for two hours, soup reached in the next four hours to be cooled properly will be 55⁰ F.

Thus, the correct option is 4. 55⁰ F.

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Your question is incomplete. Your most probably complete question is given below:

41⁰ F45⁰ F51⁰ F55⁰ F

What is the correct spelling of the words in parenthesis?

There are mild (wheels) and (zerosis) in the area.

Answers

Answer:

The answer is there are mild wheals and xerosis in the area. I hope this helps! Xerosis includes overly dry skin and membranes such as in the mouth or around the eye and wheals/hives/urticaria are red and itchy welts coming from a skin reaction, often allergies.

Explanation:

First one should be wheals( not wheels)

second one should be xerosis not zerosis

This kinda word pairs are called homophonic sounds .

It simply means

Two words which are pronounced same of kind but they have different meanings

American serving sizes in restaurants are significantly larger than most places in the world. Why is this a problem?

A.
These portions need to be served on larger plates or bowls.

B.
Many other people in the world do not have enough to eat.

C.
It gives a false sense of what a normal serving size should be.

D.
The larger portions generally have less nutrition than smaller portions.

Answers

Answer:

B. Many other people in the world do not have enough to eat.

Explanation:

It might be a good idea to talk to your parents about alcohol because:
you can find out how they might react to alcohol use
you can build trust and confidence with them
you can find out whether or not they drank when they were underage

Answers

Answer:

B: you can build trust and confidence with them

All of the following are true of dual enrollment courses and Advanced Placement® courses EXCEPT

both award credits toward high school graduation once the course is completed and passed
both guarantee actual college credits for the student once the course is completed and passed
both offer college-level courses that students can take to demonstrate subject mastery
both provide an opportunity for high school students to reduce future college costs

Answers

All of the following are true of dual enrollment courses and Advanced Placement courses except both offering college-level courses that students can take to demonstrate subject mastery.

What are Dual enrollment courses?

This involves students taking courses concurrently at two separate institutions.

Both types of courses don't guarantee subject mastery which was why option C was chosen as the most appropriate choice.

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Describe the different formats for therapy????

Answers

Answer:

There is physical and mental therapy

Explanation:

Physical is active mental is in your mind/ emotional.

#5 Reimbursement rates based on the anticipated care needs of patients result in reduced risks to facilities and to payers. Health care facilities and payers determine anticipated care needs by reviewing types and/or categories of patients treated by a facility as part of __________ management.

a. chargemaster

b. capitation

c. case-mix

d. claims

Answers

Answer:

C

Explanation:

Review of types and categories of patients treated by a facility provides information on the compositions of patient cases being treated.  It is called case mix management. So the answer is C.

Answer:

case-mix

Explanation:

This is denoted to the different types of patients which get treatment from hospital .Hospitals use this in their bills to let the patients know

Option C is correct

Maggie has been a social worker for 20 years. She is in tune with her clients'
emotions and is supportive of their realistic goals. Maggie and her spouse own a
successful organic farm and sell their produce to area health food markets. She and
her family are close-knit and involved in environmental causes. How is Maggie an
example of someone with high interpersonal intelligence?
-She is part of a family unit and involved in her community.
-She is spiritual and concerned about global issues.
-She has social abilities through her work with clients.
-She has an ability to understand living things and the natural environment.

Answers

Answer:

She has social abilities through her work with clients.

Explanation:

Interpersonal intelligence refers to the ability of a person to relate well with people, Maggie demonstrates high interpersonal intelligence because she understands her clients' emotions.

Paramedics are not trained to intubate patients?

Answers

False
Paramedics are trained to intubate patients

How can report writers decide what type of graphic to use in a report?

Answers

Answer:

If your report contains complex data, you will want to display the information graphically in tables, charts, graphs or even info-graphics. Graphics clarify data, add visuals interest, and make complex data easy to understand.

Which of these is most likely to put your mental and emotional health at risk?
O A. Excessive stress
O B. Excessive communication
O C. Moderate recreation
O D. Moderate exercise

Answers

Answer:

A. Excessive stress

Explanation:

i don't know i just have a feeling its A

define about dimension of art​

Answers

Explanation:

the difine to an art it's called katanguway which known as chimestry of art the define of this situation is longuist and never hate an artist in the artcle

Which is not one of the three P’s

Answers

Answer:

Polycardia

Explanation:

the only p's are

Polyuria

polyphagia

polydipsia

Which organ system produces white blood cells to destroy pathogens (germs) and red blood cells to carry oxygen?

Answers

Answer:

The Lymphatic System

Explanation:

(is apart of the Immune System, the main system)

Give one example of how the security rule influences healthcare facilities.

Answers

Security rule influences healthcare facilities by ensuring that the confidentiality, integrity, and availability of information is maintained.

What is Security rule?

These are set of regulations intended to protect patient health Information in healthcare systems.

The security rule however helps to maintain the confidentiality, integrity, and availability of information.

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1. Drugs mostly affect which 3 areas of the brain.

Answers

brain stem, limbic system, and cerebral cortex

What is not a reason for a friendship to change

Answers

a friendship doesn’t have to change if one of them moves estates or country’s u can still be friends

A crisis counselor determines the case is urgent; however, it is not an emergency. What is a reasonable amount
of time to respond with care to the situation?
within 1 - 2 days
within 1 week
within 1 - 2 weeks
d
within 1 - 3 days

Answers

Answer:

Within 1 week

Explanation:

Answer:

within 1-3 days

Explanation:

Which of the following is TRUE about dressing infants?

Answers

Answer:

Dress the infant in more layers than you would dress yourself to ensure the infant stays warm.

Explanation:

Don't let babies get cold. They get cold easier than you do and have less tolerance.

True or False: Teens often fight against their circadian rhythm because they
choose to go to bed later than adults even though their circadian rhythm
releases sleep hormones at an earlier time than adults' circadian rhythms
release hormones.

Answers

Answer:True

Explanation: I just read a acticle about it.

8. Before and after pictures of most health product results are typical of what someone can expect
True
False

Answers

It’s false everyone’s body is different
False , we are not all the same , we are all completely different.
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