critically discuss the transport mechanisms across the membrane​

Answers

Answer 1

Diffusion, osmosis and active transport.

Explanation:

. Diffusion is the movement of substances from a region of high concentration to a region of low concentration across the membrane.

.Osmosis is the movement of water molecules from a hypotonic solution to a hypertonic solution across the membrane.

.Active transport is the movement of substances from a region of low concentration to a region of high concentration across the membrane with the utilization of energy.


Related Questions

What is not a job of the skin tissue?
Regulates body temperature
O Protects interior of the body
Contains nerves to sense external environment
O Provides support for bones

Answers

Answer:

provides support for bones

Compare and contrast disorganized schizophrenia and paranoid schizophrenia.

Answers

Answer:

The paranoid subtype is characterized by the presence of hallucinations and delusions. In the disorganized one appears a behavioral disorganization and of the thought and language as well as an inappropriate affect. These patients tend to have an earlier onset, a worse prognosis, and a greater number of neurocognitive alterations.

Explanation:

Paranoid schizophrenics are characterized by sharp delusions, especially persecution ideas of grandeur, often with a corresponding aggressive reaction in response to the alleged persecution. There may be hallucinations of various kinds, to which patients react consecutively, but later, as deterioration occurs, apathy and indifference appear. Hallucinations are common. On the other hand, disorganized schizophrenia is another form of schizophrenia that is characterized by disorganization of speech, that is, the language is rambling and incoherent, the behavior is unpredictable, inappropriate and incongruous.

Answer:

The paranoid subtype is characterized by the presence of hallucinations and delusions. In the disorganized one appears a behavioral disorganization and of the thought and language as well as an inappropriate affect. These patients tend to have an earlier onset, a worse prognosis, and a greater number of neurocognitive alterations.

Explanation:

answer credit: genewho

Why are shape, weight, mass, size,
and texture NOT considered properties?

Answers

Answer:

Density is an intensive property. This means that regardless of the object's shape, size, or quantity, the density of that substance will always be the same. ... It is because density in an intensive property of matter. So they are not considered properties.

Explanation:

Which are consumers?
SELECT ALL THAT APPLY
a Producers
b Grazers
С
Predators
d Scavengers
e Photosynthesizing plants
f Decomposers

Answers

Answer:

b,c,d,f

Explanation:

they are the ones who consume the produce

Match the statements on the left to the choices on the right.
Increase transcription of a gene. [ Choose ]
DNA binding protein [ Choose ]
Block the promoter region of a gene. [ Choose ]
Found associated with the gene encoding HCl production in a skin cell. [ Choose ]
Found associated with the genes encoding hemoglobin in a red blood cell [ Choose ]

Answers

Answer:

Increase transcription of a gene - Activator

DNA binding protein - Ribosome

Block the promoter region of a gene - Repressor

Found associated with the gene encoding HCI production in a skin cell - mRNA

Found associated with the genes encoding hemoglobin in a red blood cell - mRNA

Explanation:

Hemoglobin is an iron containing compound present in red blood cells which carries oxygen in the body. mRNA molecule contains exon coding for two proteins. mRNA molecule becomes associated with four to six ribosomes.

The statements on the left are correctly matched with the choices given on the right are:

Increase the transcription of a gene -------- Activator.DNA binding protein ------ Ribosome, Polymerases.Block the promoter region of a gene ------ Repressor. Found associated with the gene encoding HCl production in a skin cell -------- mRNAs.Found associated with the genes encoding hemoglobin in a red blood cell -------- mRNAs.

What do you mean by a Gene?

A gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein.

An activator is known to increase the transcription of a gene, while a repressor binds to the promoter region and inhibits the transcription process. The molecules of mRNA get associated with the gene HBA, HBB which encodes for hemoglobin in red blood cells. Ribosomes and polymerases are known for DNA binding protein.

Therefore, above are all the statements on the left that are correctly matched with the choices given on the right.

To learn more about the Transcription process, refer to the link:

https://brainly.com/question/1048150

Which of the following is not correct about diffraction?

Answers

Answer:

Diffraction occurs just with electromagnetic waves.

Explanation:

The information that should not be true about diffraction is that it arise with the electromagnetic waves only.

What is diffraction?

It is considered as the process where the beam of light or the other system waves should be spread out that leads of passing via the narrow aperture or it should be an across of an edge that should be accompanied by interfering between the formation of the waves that should be generated.

So the above information should be considered.

learn more about diffraction here: https://brainly.com/question/15085704

which two places is aggregate generally found?

floodplains and alluvial fans
alluvial fans and mines
mines and beneath the topsoil
beneath the topsoil and above the topsoil

Answers

Answer: Floodplains and Alluvial Fans

Explanation: Took the quiz and got it right. Hope this helps!

Answer:person above is right

Explanation:

answer A

eselson and Stahl relied on equilibrium density gradient centrifugation to resolve the DNA containing 14N from the DNA containing 15N.They started off with DNA in media containing the heavy isotope, then switched to media containing the lighter isotope and allowed DNA replication to take place. Under semiconservative model of DNA replication, after THREE rounds of replication, how many bands of DNA would you see and which band would contain more DNA molecules

Answers

Answer:

The correct answer would be - two bands ( one intermediate, and one light)- the light band contains more DNA molecules.

Explanation:

After the switching to the lighter isotope by the second round of replication where light strands are used as template strands, produces the light band of 14N.

After three rounds of semiconservative replication, where template strand contains both heavy and new formed light bands or nitrogen and produces so in a Density gradient, there will be 2 bands one light band and the other intermediate band.

Grasses
Grasshoppers
Frogs
Hawks
Snakes
Decomposers
Which organisms in the food web shown above compete for the same
food source in this environment?

Answers

Answer:

Frogs and snakes.

Explanation:

I answered this question for another person, plus, this is the only reasonable answer.

12. The best plate to cultivate enteric bacteria is?
A. EMB
B. Blood agar
C. Mannitol salt
D. Sabouraud agar plate

13. The Ingredient in Hektoen plate which makes the agar selective is?
A. Salt
B. Glucose
C. Mannitol
D. Bile acids

14. The enteric plates are only allowing the growth of ?
A. Gram negative bacteria
B. Gram positive bacteria
C. Anaerobes

Answers

Answer:

A.) EMB (Eiosin Methylene Blue)

B.) Hektoen Agar contains Bile salt which makes it selective medium.

C.) Gram Negative

Can we depend on nonrenewable energy resources for our energy needs?

Answers

Answer:by

Explanation:

Answer:

Explanation: The answer is yes we can. We are depending on them now and they supply most of our needs to live.

Hope this helps and feel free to copy and paste it :)

Which of the following statements best describes the importance of
nutrient cycling?

Answers

Answer:

Since there are no choices to this question, I think it restores ecosystems or the organisms physical environment to a state called the "Equilibrium State".

Explanation:

The Equilibrium State keeps the ecosystems functioning. Nutrient cycles link or put the living organisms with the non living organisms together throughout the flow of the nutrients in the cycle. Remember that living and non living organisms always depend on each other.

I hope this answers your question! :)

What effect does planting trees and bushes on a steep hill have?



A- It makes the hill a good habitat for animals.

B- It provides oxygen to the soil.

C- Over time, it will help the hill grow taller.

D- It helps stop erosion.

Answers

Answer:

D- It helps stop erosion.

Explanation:

Erosion can be defined as a geological process which typically involves the wearing out of earthen (soil) materials and the transportation of these materials by natural forces like water, wind, etc. Soil erosion is greatest when the soil is steep.

The steepness of a body such as river or stream refers to the downward slope or gradient of the body of water.

Generally, the steepness of a body affects the rate at which other materials would flow or move around. Thus, the steeper a river or stream, the greater would be its rate of erosion. Other factors that affect the rate of erosion in an area include the following; farm management, rainfall, climate, soil type, soil cover, landscape, type of wave, crops, rock strength and position of coast.

In order to mitigate or stop the rate of erosion in an environment, trees and bushes should be planted on a steep hill because they will obstruct the free flow of water, as well as absorbing it.

what type of joints make up the skull?

Answers

Answer:

The bones of the skull are highly irregular. Most of the bones of the skull are held together by firm, immovable fibrous joints called sutures or synarthroses. These joints allow the developing skull to grow both pre- and postnatally.

Explanation:

Answer:

какву врсту питања

kakvu vrstu pitanja

Explanation:

Will give brainliest

NO LINK SHARING OR U WILL BE REPORTED

After an initial infection of the measles virus, B-cells recognize the measles virus in your body. How is this helpful in human immune response? (SC.912. L.14.52)
ws
O The B-Cells transfer this recognition to T-cells, which will then devour the viruses
o The B-cells use this recognition to defend the body against the B-cells more quickly recognize and respond to any other virus that invades the body
O The B-Cells more quickly recognize the response to any other virus that invades the body
O The B-cells produce antibodies more quickly if the measles virus is encountered again

Answers

Answer: it’s D

Explanation:

Which of the following does the frog represent? A. Primary producer B. Primary consumer C. Secondary consumer D. Decomposer

Answers

Answer:

Primary Consumer

Explanation:

Because it eat directly from the plants, which are primary producers

Marianne is conducting an experiment on homeostasis in paramecium, which is a type of single-felled organism. Which of these observations provides the strongest evidence of a paramecium maintaining homeostasis

Answers

Hello. You did not present the answer options, which makes it difficult for you to receive a specific answer. However, I will try to help you in the best possible way.

One of the most common evidences that a paramecium is maintaining homeostasis is the pumping of water from the vacuoles present in its body.

The paramecium is a protozoan that lives in aquatic environments, mainly those composed of fresh water. The problem with this environment is that water is able to enter the paramecium organism in large quantities and this can promote the disruption of the organism through lysis of the cell. In this case, homeostasis must act quickly and pump water out of the body, through the cell vacuole.

Homeostasis is a regulatory system of the organism, which must promote the balance of the organism, whenever any external or internal factor tries to harm this balance.

in selective breeding, the desirable traits are chosen.

a. true
b. false

Answers

True because they are selecting and breeding for traits that will be best for survival

PLEASE HELP AND EXPLAIN (NO LINKS OR NO RANDOM ANSWERS FOR POINTS)

Answers

The dust may have caused plants to die which led to herbivores dying of starvation then the carnivores slowly started to run out of other dinosaurs to eat and they became extinct. (I hope this made sense and helped some!)

a heavily populated town with a housing shortage is located near one large river the water in the river is not heavily polluted the people grow food on fertile farms near the river there is no access to vaccinations in the area and the death rate from certain diseases is very high based on this the most immediate solution

Answers

Answer:

Answer: access to medical supplies

Explanation:

Answer:

access to medical supplies

Explanation:

A substance whose shape can easily change is a
a.
solid.
b.
powder.
c.
fluid.
d.
metal.


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

fluid.

Explanation:

because there molecules can freely move and take the shape of any container

The kinetic energy of a moving object depends on its mass and its
a. volume.
b. velocity
c. distance.
d. acceleration

Answers

Answer:

Your answer is B. Velocity

the answer is b:velocity

Plzzzz help me with this (the words to fill the blank are at the top)

Answers

Answer:

The organisms and environments that make up a community, called an *ecosystem*, are constantly changing. Sudden and violent events, such as *storm surges or tornadoes* and *put the second option on whatever you choose first*. *Flooding* results when rainfall exceeds the holding capacity of a drainage system. *Hurricanes* are storms that develop over warm water. Tree's and plants are *uprooted* from the ground. By studying the histories of violent storms, *meteorologists*...

Explanation:

I did the most I could. I hope it helps!

what is urbanization​

Answers

Explanation:

the process of expanding residential areas or establishing cities or towns by constructing large buildings in search of modern facilities is called urbanization.

hope it helps

If a plant were unable to produce root caps, what would be the effect on plant function?
O The plant would have enlarged root cells.
The plant would have damaged root cells.
O The plant would not be able to grow to normal height.
O The plant would not be able to absorb water from the soil.

Answers

Answer:

The plant would not be able to grow to normal height.

Explanation:

If a plant does not develop a root cap, the plant does not allow the root to grow downwards.

Hope this helps :)

If a plant is unable to produce root caps, the plant will be unable to absorb water from the soil; this is the final option, as root caps are a specialized protective layer at the tip of plant roots that help protect the plants.

What is the significance of the root cap in the plants?

The root cap contains cells that are capable of secreting slime, which helps the root to move easily through the soil, helps to maintain the proper orientation of the root tip so it can efficiently absorb water and nutrients from the soil, and acts as a barrier that protects the delicate root tip cells as the root grows through the soil.

Hence, if a plant is unable to produce root caps, the plant will be unable to absorb water from the soil; this is the final option, as root caps are a specialized protective layer at the tip of plant roots that help protect the plants.

Learn more about the root cap in the plant here.

https://brainly.com/question/12225643

#SPJ6

Select from the list the three functions which apply to the large intestine,

absorb water
complete digestion
produce hydrochloric acid
continue digestion
eliminate waste
absorb waste

Answers

Answer:

continue digestion, eliminate waste, absorb waste

Explanation:

The correct option is - continue digestion, eliminate waste, absorb waste

Reason -

The large intestine eliminate waste, absorb water and continue digestion.

Hydrochloric acid is produced by the parietal cells of the stomach

Digestion begins in the mouth, when we chew and swallow, and is completed in the small intestine. i.e digestion is complete in small intestine.

Answer:

Absorb water, complete digestion, and elimenate waste

Explanation:

I had this same lesson, I did what the other person said

and it was wrong. I promise this is right.

In terms of daily hassles, what age differences have been found?
A) Elderly individuals are much more strongly affected by daily hassles like
grocery shopping, doctor's appointments, and bad weather.
B) Young individual's daily hassles are more commonly related to money
problems, while older individual's daily hassles are more commonly due to
interpersonal conflict.
C) There are no significant age differences in either the frequency or cause of
daily hassles.
D) Older individuals are more likely to cope with daily hassles by becoming
angry, while younger individuals are more likely to respond to daily hassles by
withdrawing from others.

Answers

Answer:

Option B is the correct representation of differences in terms of daily hassles between the old and young people

Explanation:

As compared to old people, young people carry heavy burdens in terms of stress exposure. The daily activities such as house hold works, grocery shopping etc become a burden for young ones while the old age people are primarily affected by interpersonal conflicts, physical pain etc. Exposure of such daily hassles causes deterioration of health of both the young and old ones.

Hence, option B is correct

A cell that contains 10% NaCl is sitting in a solution of 30% NaCl. Due to osmosis which direction will water move?

Into and out of the cell at equal rates

Out of the cell

There will be no water movement

Into the cell

Answers

Answer:

I think out of the cell!

Hope it helps..

URGENT WILL GIVE BRAINLINESS
Choose one of the following scenarios and answer the questions provided. Support your answers using scientific reasoning and discussing possible impacts to individuals, society, and the environment. Be sure to also discuss any medical or ethical issues that may apply. (10 points)
Scenario 1:

Genetic engineering can be used to create more productive strains of farm animals. By adding genes to an animal's DNA, the animal can be made to produce milk or meat containing vital nutrients that would not be found naturally in those products. This provides a greater amount of nutrients per serving of milk or meat.

Do you think that this type of genetic engineering should be pursued? Explain your answer. (5 points)

What are some possible impacts (positive and negative) of this type of genetic engineering on individuals, society, and the environment? (5 points)

Scenario 2:

In the future, doctors may be able to evaluate your DNA to check for genetic markers related to specific medical conditions or harmful reactions to medications. Your personalized genetic profile could be kept on record and referred to in order to develop personal medical treatment based on your unique DNA sequencing. Scientists have found that just small variations in a specific section of your DNA can help determine how well some medications can work for you or if they would be beneficial at all.

Would you want to have your DNA profile kept in your medical record as a reference for your doctors? Explain your answer. (2 points)

What are potential pros and cons of having such tests done and referring to DNA sequences when determining a patient's medical treatment? (5 points)

Describe how the availability of this technology might affect the frequency of genetic diseases in individuals and populations. (3 points)

Answers

Scenario 2:
Question 1:
I would want to have my DNA profile kept in a medical record for doctors to see, because if anything ever happens to me, and they need a reading of my DNA they have it available.
Question 2:
There are definitely pros and cons for having tests done and referring to DNA sequences when trying to refer to a patient's medical treatment. A pro would be that doing this it gives a lot of information about your DNA, and it provides helpful information so if doctors ever needed to perform treatment, that would be a good source for them to go too. A con would be if you ever have a treatment done, and scientists refer to your DNA sequence and proscribe medicine, they won't know how you will react to the medicine, and if it will work.
Question 3:
Having this technology now will definitely help us pin-point any genetic diseases in individuals, because of the copies of their DNA.

Answer:

i tried my best (so many questions on scenario 2)

Explanation:

scenario 1: there are many positive and negative possible impacts that come with genetic engineering. A very negative outcome could come from just one mistake.  But if there was a way to ensure that nothing could go wrong than the outcome would be an healthy new meat or milk that's packed with nutrients.

scenario 2:  I think if this was a real thing i would be completely for it. If a person was to get their DNA checked then doctors would be able to prescribe a medication that would fit you. this could also prevent any allergic reactions to and medications or treatments.

I personally would want my DNA profile kept on record so that i can be treated with the right medications for me.

(The potential list pros and cons would probally look like this)

          PROS

Makes for better treatmentCan show genetic markers related to specific medical conditions or                                                                   harmful reactions to medications.can help determine how well some medications can work for you or if they would be beneficial at all.

            CONS

DNA screening may not show all conditionspatient may not be able to get treated if their condition is unknownSomething could go wrong during the screening a wrong treatment may be administered as a result.

what is a scienctific theory

Answers

Answer:

" A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world."

Explanation:

- Eijiro <3

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