Explain why the steroid hormone estradiol (MW 272) readily crosses membranes by simple diffusion but the much smaller H requires transport proteins

Answers

Answer 1

Answer:

Estradiol has a higher partition coefficient than H+ ions

Explanation

Estradiol is a non-polar and hydrophobic molecule that has a higher partition coefficient than H+ ions, it means that the cell membrane is more permeable to this molecule because it can dissolve in and diffuse within the hydrophobic phase of the membrane. The movement of polar charged molecules (even small H+ ions) requires the input of energy to be able to dissolve within the lipid bilayer. In consequence, the movement of H+ ions requires proteins capable of transporting these protons through the membrane.


Related Questions

In which layer of the atmosphere does the aurora borealis form? O A. The troposphere OB. The mesosphere O C. The thermosphere O D. The stratosphere SUBM​

Answers

Answer:

The Thermosphere

Explanation:

Just took the test on A P E X, it's right. Hope this helps :)

Aurora Borealis forms in the thermosphere layer of the atmosphere. Therefore, option "C" is correct.

What are the different layers of the atmosphere?

The atmosphere is made up of different layers which protect the life on Earth and make it habitable. There are four layers of the atmosphere troposphere, stratosphere, mesosphere, and thermosphere.

In the troposphere, the temperature rises from bottom to top.  The ozone layer is present in the stratosphere. This is also known as the flying zone as no clouds are present in this layer. In the mesosphere, the air is much colder as there are gas molecules present that absorb solar radiation whereas the density of molecules in the thermosphere is very low.

The atmospheric layers protect the life on Earth.

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As. Why do biennial plants need two years to complete
their live Span ?

Answers

A biennial requires all or part of 2 years to complete its life cycle. During the first season, it produces vegetative structures (leaves) and food storage organs. The plant overwinters and then produces flowers, fruit, and seeds during its second season.

If you move farther away from Earth, does it have the same amount of
gravitational force acting on you or does it change?

Answers

Answer:

The strength of the force is inversely proportional to the distance squared. The farther away an object is, the weaker the force; the closer, the stronger.

Which statement best describes the movement of sodium ions across the cell membrane?
They are hydrophilic, so their movement needs to be facilitated by transport proteins.
They are hydrophobic, so their movement needs to be facilitated by transport proteins.
They are hydrophilic, so they easily pass across the cell membrane on their own.
They are hydrophobic, so they easily pass across the cell membrane on their own.

Answers

Answer: A. They are hydrophilic, so their movement needs to be facilitated by transported proteins.

Explanation:

compounds formed from the attraction of oppisitely charged ions are called ________.
A. covalent compounds
B. ionic compounds
C. mineral compounds
D. molecular compounds ​

Answers

Answer:

B. ionic compounds

Explanation:

6.
What is the meaning of the word regulate in paragraph six?

Answers

Answer:

Definition of regulate

Definition of regulate: to set or adjust the amount, degree, or rate of (something) : to bring (something) under the control of authority. : to make rules or laws that control (something)

Which components bond with the nitrogenous base, guanine, in a section of double-stranded DNA?

A. Ribose sugar and uracil
B. Deoxyribose sugar, phosphate, and Thymine
C. Guanine, cytosine, and phosphate
D. Cytosine and deoxyribose sugar

Answers

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Actually Welcome to the Concept of the Biology

The components that bond with nitrogenous vase, guanine, in a section of double-stranded DNA is

B.) Deoxyribose Sugar, Phosphate and Thymine.

Answer:

Cytosine and deoxyribose sugar

Explanation:

i took the 7.01-7.03 quiz on k12 and got 100%

how do you find per capita growth rate over a month?​

Answers

All you have to do is take the CGR (capita growth rate) percentage you just found and divide it by the number of years, months, etc. The complete formula for annual per capita growth rate is: ((G / N) * 100) / t, where t is the number of years.

does fluid fill an surround cells

Answers

Answer:

Hello!!! Princess Sakura here ^^

Explanation:

Yes the gel-like liquid is called cytoplasm.

Yes it does like gel

How does the water on earth regulate the earth temperature

Answers

Answer:

It absorbs a lot of the sun’s energy.

Explanation:

A large portion of the sun’s energy and heat is absorbed by the oceans, which causes water to evaporate. Water has a high heat capacity, and therefore absorbs a large portion of the sun’s heat, regulating the earth’s temperature.

describe three anatomica features of humans that adapt them for endurance running?

Answers

Traits that aided running include leg and foot tendons and ligaments that act like springs, foot and toe structure that allows efficient use of the feet to push off, shoulders that rotate independently of the head and neck to allow better balance, and skeletal and muscle features that make the human body stronger, more

basic science hatching of egg into chick​

Answers

Answer:

Basic science of hatching of egg into chick is incubation.  

Explanation:

Incubation is the process of keeping eggs at suitable temperature and under suitable conditions, so that it can develop.

How quickly must non-frozen ready to eat foods be consumed

Answers

a day because if they are let out for over a day they will go bad

the way president Ulysses s. grant ran his cabinet in a military style rather than civilian contributed too many scandals in his administration
A) true
B) false

Answers

I think the answer would be false :)

Help! I’ll mark you brainly!

Answers

Answer:

its a powerhouse i just got out of my mouth XD

DNA undergoes the process of replication to produce new strands of identical DNA before cell divisions. Describe the basic dna replication. I will give you brainliest

Answers

Answer:

Please mark as Brainliest

Explanation:

Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each strand of existing DNA acts as a template for replication

Step 1 Replication Fork Formation. Before DNA can be replicated, the double stranded molecule must be unzipped into two single strands

Step 2 Primer Binding. The leading strand is the simplest to replicate

Step 3 Elongation

Step 4 Termination

During my ptosis a single cell divides to produce two daughter cells what must happen in the original cell so that each daughter cells can I have a complete set of chromosomes

Answers

Answer: 3d illustration depicting cell division, a process whereby a cell divides into two new daughter cells with the same genetic material.

Explanation:

Who know what the answer

Answers

Answer:

2. plasma kingdom fungi

What is the most important thing you have learned from your identity?

Answers

Answer:

The most important thing that I have learned from my identity is that it mine and only mine. I determine who I am and what I become. No one can tell me what I will do with my life.

Explanation:

The height of a painting is ft. Between which two consecutive whole numbers is ​?
Choose the correct answer below.
A.
and
B.
and
C.
and

Answers

Answer:

a

Explanation:

I don't understand what you want it's all the same they all say and

I need help on this please I will give brainlist​

Answers

Answer

B

Explanation:

biodiversity in the productivity of organisms if there is more it will recover faster

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Ra epOSue​

Answers

Answer:

ufucufxdskych jvyc ikvuci

Explanation:

tgffgb t cook ha ha ha oh g civic guy the h

Sodium (Na) and chlorine (CI) combine to form sodium chloride (NaCl), which is commonly
known as

Answers

NaCi is commonly known as salt

Which of the following is not one of the three steps (processes) involved in urine formation?

Answers

The following is not one of the three steps (processes) involved in urine formation - Erythropoietin production.

Erythropoietin

It is a hormone that has no role in urine production. The steps of urine production are:

glomerular filtration - the filtration of blood, which is carried out by the glomerulus tubular reabsorption - The tubular epithelial cells in different segments of the nephron perform absorption (reabsorption) either by active or passive mechanismstubular secretion - helps in the maintenance of an ionic and acid-base balance of body fluids.

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What is a fourth order consumer

Answers

The fourth order consumer is called the ''quaternary'' consumer. It is an animal that eats a third order consumer. So if a duck was a third order consumer, and a snake was a fourth, then the snake would consume the duck.

How do chemicals made by organisms help establish and maintain a uniform distribution pattern?

Answers

Answer:

they in a current form is too unspeakable

The chemicals made by organisms help to establish and maintain a uniform distribution pattern which makes the individuals space out evenly and prevents unwanted enemy.

What is Uniform distribution pattern?

In a uniform distribution, the different individuals are equally spaced apart from each other, as seen in the negative allelopathy where various chemicals kill off the plants surrounding sages. In a random distribution, individuals which are spaced at unpredictable distances from each other, as seen among plants that have wind-dispersed seeds on them.

The chemicals synthesized by organisms help to establish and maintain a uniform distribution pattern because it makes individuals to space out evenly in the area and prevents unwanted enemy.

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All of the following events occur during prophase in mitosis except

WILL MARK BRAINLIEST

A. Condensation of DNA

B. Crossing over

C. Pairing of chromosomes

D. Spindle formation

Answers

The. Answer I believe is c

All of the following events occur during prophase in mitosis except crossing over (Option B)

Mitosis can be divided into four phases: prophase, metaphase, anaphase, and telophase.

During prophase, the chromatids condense into chromosomes, thereby making them visible.

The mitotic spindle is a structure composed of microtubule proteins that segregate the chromosomes in mitosis. This structure is formed in prophase.

In Prophase homologous pairs of chromosomes are paired together. In metaphase, these chromosomes are lined up at the equator of the cell and sister chromatids are attached to the spindle fiber.

Crossing over (or recombination) is the exchange of genetic material between non-sister chromatids that occurs during prophase I of meiosis.

In conclusion, condensation of DNA, the pairing of chromosomes and, spindle formation occur during prophase, whereas crossing over occurs in prophase I of meiotic cell division (Option B).

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What three changes in motion show that an object is accelerating? *
1 Force, Gravity, and Acceleration
2 It speeds up, it slows down, or changes direction
3 Turning left, right, or going straight

Answers

The answer is 1

There are three ways an object can accelerate: a change in velocity, a change in direction, or a change in both velocity and direction

Why can someone lost at sea die of thirst

Answers

Human kidneys can only make urine that is less salty than salt water. Therefore, to get rid of all the excess salt taken in by drinking seawater, you have to urinate more water than you drank. Eventually, you die of dehydration even as you become thirstier.

Answer:

someone can die at sea from thrist because there is no drinkable water.

Explanation:

You cannot drink the water surrounding you because it is salt water. (not the regular non-salt water we drink) the salt in the ocean water will actually dehydrate you more.

Hope this helps!!

APT and photovoltaic cells are simikar because

Answers

The question is incomplete, below is the complete question.

ATP and photovoltaic cells are similar because

A. they are both key components of plant cells.

B. they both produce chemical and electrical energy.

C. they are both key components of solar panels.

D. they both use energy from the sun to separate electrons from atoms.

The correct answer to the question is option D

ATP and photovoltaic cells are similar because THEY BOTH USE ENERGY FROM THE SUN TO SEPERATE ELECTIONS FROM ATOMS.

Photovoltaic cells are otherwise known as solar cells,they are made of silicone that are specially treated,these specially treated silicon transfers solar energy gotten from the sun to electrical energy.

These solar powered photovoltaic panels converts the rays from the sun into electricity.this it does by exciting electrons found in silicon cells and also using the photons of light from the sun.

When this electricity is generated,it can be used to supply energy that is renewable to ones home or business.

In ATP, during the process of photosynthesis, sunlight penetrates the cell and further pass into the chloroplast. This light energy is further intercepted by granal stacks containing chlorophyll molecules, from then,some of those light energy are concerted to chemical energy,as this is going on,a phosphate is then added to a molecule to give rise to ATP.

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