Which direction do molecules move across a membrane based on concentrations inside and out of the cell?

Answers

Answer 1
In simple diffusion, small noncharged molecules or lipid soluble molecules pass between the phospholipids to enter or leave the cell, moving from areas of high concentration to areas of low concentration (they move down their concentration gradient).
Answer 2
Answer: it moves from high concentration to low concentration

Related Questions

Where do you find most of the water in the human body

Answers

Answer:

Up to 60% of the human adult body is water. According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.

Explanation:

Hope this helps!!!

Answer:

Most of the water can be found in the heart and brain which is 73% of water, and the lungs which is 83% of water.

Sometimes, due to inherited disorders, nerve cells in the muscular system do not function properly. What problems might a person have if he or she had one of these disorders?

Answers

Answer: common inhereted disorders are: bad eye sight, bad hearing, and autisim and other nurogical disorders!

Explanation:

Explain the ruminant Process of digestion of animal farm animal?

Answers

The process of rumination or chewing the cud is where forage and other feedstuffs are forced back to the mouth for further chewing and mixing with saliva

50 POINTS! Learnings and realizations about Removing Stains
What are your realizations in removing stains?

Answers

Explanation:

Stain removal is the process of removing a mark or spot left by one substance on a specific surface like a fabric. A solvent or detergent is generally used to conduct stain removal and many of these are available over the counter

Stains disfigure clothes and home furnishings, and it is desirable to remove them, especially if the stains stiffen or corrode the fabric beneath them. However, the removal of stains can be hazardous to the fabric - and to the person attempting to get the stain off. To be successful, care and caution must be exercised.

Note: This answer may not be from the examination point of view

HELP ME OUT PLS!!!!!!!!!!!!!!!!

20. Sonja and Amal are building a sand castle at the beach at 3:00pm. When they come back at 8:00 am the next day the sand castle is gone.

Use the diagram to help you explain what happened to their sand castle.

You may type your answer below or record your answer.

The sand castle was gone because
______________​

Answers

Answer:

The sand castle was gone because the sun was on it so the sand castle disappeared, also the waves of the ocean could of washed it away too.

Explanation:

The sun was on the sand castle and it caused it to disapper, also the waves of the ocean could of washed it away.

Hope this helps :)

Explain what distruptive selection is

Answers

Answer:

"Disruptive selection is a type of natural selection that selects against the average individual in a population. The makeup of this type of population would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle"

Explanation:

how one’s sense of maleness or femaleness develops

Answers

Answer:

It is through Gender socialization

Explanation:

Hope this helps!

Definition of group in science.

Answers

Answer:

The word 'Group' in science refers to a column in the periodic table of the chemical elements.

Explanation:

"In a group, the chemical elements have atoms with identical valence electron counts and identical valence vacancy counts." -high school textbook

Hope this helps :)

Have a fantastic day!

Modern landfills are required to have ______.

A: No liner
B: A plastic liner
C: A mesh liner
D: A sand liner

Answers

Answer:

b

Explanation:

because its waterproof

Answer:

B.It must hqve A plastic liner

discuss briefly on the origin of life according to creationists and naturalists​

Answers

Answer:

Creationists believe that a god created everything in the universe, including all life. Typically they don't believe in evolution; they believe that their deity created every species exactly how it's supposed to be and they don't need to change. They believe that everything in nature happens for a planned reason.

Naturalists believe that everything in the universe happens by chance. They believe in theories like the Big Bang Theory, which states that the universe itself was created by chance. They also believe in evolution - that every species adapts to its surroundings and evolves more desirable traits. Naturalists believe that the first life happened due to the correct conditions coming together by chance to create unicellular organisms, which eventually reproduced, mutated, and evolved into the millions of specialized species that exist on earth now.

Surface weather map activity
Anyone ever done this I never understood how to map it

Answers

Answer:

Scientists needed a way to convey as much information as possible without making a map completely unreadable. Enter the station plot, an ingenious way to print lots of information in a tiny space. It takes a bit of deciphering to understand, but once you’ve got the hang of it, you can get the gist of a specific location’s weather

Explanation:

3. What are the inferences you can make from each of the activity above?​

Answers

A reagent is a chemical substance that cause a chemical reaction or used to test the one. In the given activity, different reagents are used to predict the compound. Starch gives blue color on reaction with iodine, glucose will have brick red precipitate with Benedict solution, and proteins will have reddish brown color with Millon's reagent.

Why reagents are used to test compounds?

The reagents when combined with specific compounds performs specific reaction which helps to determine the presence of particular compound.

In the given activity,

If in the first test, if the iodine turns color to blue this will indicate the presence of starch.In the second test, if on adding Benedict solution, brick red precipitates formed, this indicates the presence of glucose.In the third test, on adding Millon's reagent the protein in the solution will form reddish brown color.

Thus, these were some inferences that can be made from the given activities.

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Which is one of the characteristics that Mars and earth share

Answers

Answer:

They both have water, semi-regular temperatures, and mars has a partially livable atmosphere.

Answer:

Temperature and atmosphere

Explanation:

The geological processes in mars and earth are common

Examples formation of Volcanoes

Which is NOT a way that the
respiratory system filters the air
we breathe?
A. cilia
B. mucus
C. saliva

Answers

Answer:

C

Explanation:

Saliva is through the mouth and is too break down food and has nothing to do with the respretory system

Hope this helps!

Which part of these is a part of feedback loop that results in a cooling effect on the earth

Answers

Answer:

The answer is b: part of a feedback loop that results in a cooling effect on Earth

Explanation:  

More evaporation of water due to warmer temperatures from various sources such as seas and oceans and even melting of glaciers cause low and thick clouds to form. These thick low clouds later result in rain. In addition, the rain causes the earth’s temperature to cool down.

Healthcare workers are exposed to many different types of patho genic and nonpathogenic micro organisms which body system works together to protect the body from pathogens

Answers

The body systems that work together to protect the body from pathogens are the immune system and circulatory system.

What are body systems?

Body systems are groups of organs, tissues and cells that act to perform one or more specialized functions.

The immune system is an organ system that acts to protect the body against the entry of pathogenic organisms such as bacteria.

In conclusion, the body systems that work together to protect the body from pathogens are the immune system and circulatory system.

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How did the results prove the semiconservative model of DNA
replication? Explain.

Answers

Answer  and  Explanation:

Image result for How did the results prove the semiconservative model of DNA

The experiment done by Meselson and Stahl demonstrated that DNA replicated semi-conservatively, meaning that each strand in a DNA molecule serves as a template for synthesis of a new, complementary strand. Although Meselson and Stahl did their experiments in the bacterium E.

Which "letter" represents the "LIGAND" in the diagram below?

Answers

Answer:

Letter B.

Explanation:

The ligand is what binds to the receptor in cell signaling pathways. The receptor is pictured as A, and B is the molecule binding to it.

a.
Access to potable water is most heavily limited by
money
b. precipitation
raw water supplies
d. climate
C.
Please select the best answer from the choices provided
A
B
D

Answers

Answer:

money

Explanation:

Potable water is the water, which is tested and safe for drinking purposeS and cooking preparations. The water is tested and purified in industries. So, potable water is costly.

While listening to his heart with a stethoscope, the physician noticed a high-pitched, blowing, systolic murmur, heard best directly under the left nipple. A review of Roger's medical records shows no prior history of a heart murmur. What could be causing this new murmur

Answers

Answer:

Heart malfunction

Explanation:

high-pitched, blowing, systolic murmur indicates that he was having a heart issue with initial could lead to heart malfunction because normal heartbeats don't have a high-pitched sound or blowing.

Think of a topic of interest to you within the subject of Earth and Space Science. How might the daily activities of a scientist studying that topic or field differ from a chemist, physicist, or biologist? How might it be the same? In what ways would the scientist likely use the scientific method? Which types of data would they likely analyze most often?

Answers

Answer:

Lets take Natural disaster has a reference in point

Examples of natural disasters are Earthquakes and Volcanoes

Earthquake is as result of shocks and vibrations within the tectonic plates of the earth. Volcanoes are the eruption of molten magma from within the epicentre to the surface.

An Earth Scientist will want to consider the likelihood of these disasters occuring in a place. He will want to consider the past events , what are the composition of samples that are gathered , the geological terrain of th location.

A physicist on the other hand will be interested in the forces and how to measure the vibrations from earthquakes and earth tremors, what kind of load to resist the impact. It will be the same as the earth sciences in that they will want to gather enough data to mitigate against it impacts and consequences by proposing theories that are vital

The scientist will use the scientific methods to derive equations from data samples. Have samples from different location, observations, inference and reach a conclusion. Qualitative and quantitative data sets

Explanation:

Lets take Natural disaster has a reference in point

Examples of natural disasters are Earthquakes and Volcanoes

Earthquake is as result of shocks and vibrations within the tectonic plates of the earth. Volcanoes are the eruption of molten magma from within the epicentre to the surface.

An Earth Scientist will want to consider the likelihood of these disasters occuring in a place. He will want to consider the past events , what are the composition of samples that are gathered , the geological terrain of th location.

A physicist on the other hand will be interested in the forces and how to measure the vibrations from earthquakes and earth tremors, what kind of load to resist the impact. It will be the same as the earth sciences in that they will want to gather enough data to mitigate against it impacts and consequences by proposing theories that are vital

The scientist will use the scientific methods to derive equations from data samples. Have samples from different location, observations, inference and reach a conclusion. Qualitative and quantitative data sets

5 natural disasters

Insurance tech startup Descartes Underwriting has raised $120 million of fresh funds.The French firm helps businesses protect themselves against climate risks like cyclones.It raised the funds in a Series B round led by Highland Europe and Eurazeo.

Natural disasters as a reference point

Examples of natural disasters are Earthquakes and Volcanoes

An earthquake is a result of shocks and vibrations within the tectonic plates of the earth. Volcanoes are the eruption of molten magma from within the epicenter to the surface.

An Earth Scientist will want to consider the likelihood of these disasters occurring in a place. He will want to consider the past events, what are the composition of samples that are gathered, and the geological terrain of the location.

A physicist on the other hand will be interested in the forces and how to measure the vibrations from earthquakes and earth tremors, and what kind of load to resist the impact. It will be the same as the earth sciences in that they will want to gather enough data to mitigate against its impacts and consequences by proposing theories that are vital

The scientist will use scientific methods to derive equations from data samples. Have samples from a different location, observations, inference, and reach a conclusion. Qualitative and quantitative data sets

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How is predation involved in natural selection?

Answers

Answer:Selective predation can lead to natural selection in prey populations and may alleviate competition among surviving individuals. The processes of selection and competition can have substantial effects on prey population dynamics, but are rarely studied simultaneously.

Explanation:hope its help

27. || The vocal tract. Many opera singers (and some pop singers) have BIO a range of about 2 \frac{1}{2} octaves or even greater. Suppose a soprano's range extends from A below middle C (frequency 220 Hz) up to E-flat above high C (frequency 1244 Hz ). Although the vocal tract is quite complicated, we can model it as a resoNting air column, like an organ pipe, that is open at the top and closed at the bottom. The column extends from the mouth down to the diaphragm in the chest cavity, and we can also assume that the lowest note is the fundamental. How long is this column of air if v=354 m/s ? Does your result seem reasoNble on the basis of observations of your own body?

Answers

This is measures by open harmonics frequency.

f= n*V/(4*1)

What is frequency?

Frequency refers to the number of waves that pass a fixed point in unit time. Frequency is denoted by the symbol f, and is measured in hertz (Hz).

Given,

f=220

velocity= 354 m/s

=> 220 = (nl)*(354)/(4*1)

=>1244 = (n2)*(354)/(4*1)

=> n2/n1= 5.65

=> n1=1, n2=6

=> = 40 cm (final answer).

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Trey is explaining to his little brother Alex what he can expect to
happen to his body during puberty. Which statement of Trey's is
INCORRECT?
You will only gain muscle if you work out like I do.
O Your voice will get deeper, but it might "crack" from time to time.
O Your shoulders will get broader.
0 You will start to grow hair on your upper lip.

Answers

Answer:

The incorrect answer out of these choices is going to be, "You will only gain muscle if you work out like I do."

Explanation:

This is because there are many ways to gain muscle during puberty, and so saying that there is only one correct way is just simply incorrect.

Which of the following would be an inconclusive pregnancy test (not negative) when using a lateral flow test to detect pregnancy-related hormones in urine?

Answers

A band in the test line but not a band in the control line indicates an inconclusive pregnancy test.

What is Pregnancy test?

This test involves the measurement of Human chorionic gonadotropin in the body as it is synonymous with pregnancy.

A band in the test line but not a band in the control line indicates an inconclusive pregnancy test while a band in the control line but not a band in the test line indicates a negative test result.

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In what way do the oceans and the forests perform a similar function in the carbon cycle, under normal conditions?
A.
Both use carbon dioxide to make food.
B.
Both take carbon dioxide out of the atmosphere.
C.
Both enrich carbon by turning it into carbon dioxide.
D.
Both create the carbon needed by the organisms living in them.

Answers

According to the research, the oceans and the forests perform a similar function in the carbon cycle that is taking carbon dioxide out of the atmosphere.

What is the carbon cycle?

It is the biogeochemical process in which carbon circulates through the atmosphere, the oceans and the surface and interior of the Earth.

The oceans are considered the largest sinks of carbon, in its organic and inorganic forms, it is governed by physical and biological processes that act by increasing the concentrations of CO2 within the ocean.

Therefore, we can conclude that according to the research, the oceans and the forests perform a similar function in the carbon cycle that is taking carbon dioxide out of the atmosphere.

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Replicate the following (write the complementary DNA strand);

ATT ACG CGC

Answers

Sorry but… the complementary base pairs are actually:
adenine and thymine
cytosine and guanine

So every A will be matched with a T and every C with a G.

This means your replicated sequence should be:

TAA TGC GCG


Which two natural resources will be most affected as people try to meet the growing demand for food?

Answers

Answer:

water and land

Explanation:

I assume this is an open-ended question, so you could make an argument for lots of things, but these are the two most important ones in my opinion. The amount of freshwater on Earth is pretty small, only about 2.5%, and most of that is locked in ice. As the demand for food grows, the demand for water for crops and livestock also grows. This is in addition to the increase in water that is needed for a growing population. Climate change increases this problem because of drought. The second most important resource that will be affected is land. If we need more food, we also need space to grow crops and raise livestock. The available space is also reduced because people need places to live and we need to be able to grow trees for wood to build houses and other buildings. I argue that land and water will be the most in-demand commodities as the population continues to increase.

what is duct gland...​

Answers

a gland that secretes externally through a duct. exocrine, exocrine gland. gland, secreter, secretor, secretory organ - any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream.

Answer:

A gland that excretes through a duct

Sensory _____________ respond to stimuli by sending messages to the brain A. Nerve cells, or __________ , are the basic units of the nervous system

Answers

Answer:

Sensory _____________ respond to stimuli by sending messages to the brain A.

Organs

Nerve cells, or __________ , are the basic units of the nervous system.

Neurons

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