Is the cholesterol molecule mostly polar or mostly nonpolar?

Answers

Answer 1

Answer:

Most of the cholesterol molecule in non-polar and therefore associations with the non-polar fatty acid tails of the phospholipids. However, the hydroxyl group (-OH) on cholesterol carries a negative charge and therefore associates with the polar environment of water either inside the cell or outside.

Explanation:

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Answer 2

Answer:

Cholesterol is very non-polar, except for the hydroxyl group attached to the first ring.

Explanation:


Related Questions

True or false: Most muscles contain a combination of all three muscle types, slow oxidative, fast oxidative, and fast glycolytic.

Answers

Thanks to what we know about muscles and the fibers they contain, we can confirm that the statement in the question is in fact true.

Muscle is a type of tissue which due to coordinated systems that make up their composition, have the ability to contract. This ability allows for greater efficiency. In humans, the muscle systems are classified into three kinds:

Cardiac muscleSkeletal muscleSmooth muscle

Despite the different classifications and functions of each muscle type, each of these muscles contains a combination of three types of muscle fibers, which are the fibers listed in the question:

Slow oxidativeFast oxidativeFast glycolytic.

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Although a liver cell and a muscle cell in a human cell develope from the same single cell, their appearance and function is different. This is because their liver cell is?

Answers

Answer:

liver cells:

contain different genes than the muscle celldestroyes the muscle cell genes it contains lacks the genes found in muscle cells

how does high biodiversity help the stability of an ecosystem?

Answers

Answer: See explanation

Explanation: High biodiversity help the ecosystem have better stability becuase if a diease affect a certain type of plant, and the ecosystem has high biodiversity only that species will die and the others will live on. But if it has low bio diversity the organism might die out completely.

what color indicates the presence of a high level of simple sugars

Answers

Answer:

Brown

Explanation:

Greens the lowest while Brown is the highest

DNA sequences that control traits are called
a. genes
b. proteins
C. enzymes
d. deoxyribose sugar

Answers

gene

Explanation:

the gene of a human being carried all the traits of the person which can be transferred to an embryo when fertilization occurs

A. Genes

Genes carry traits from the person to the embryo which is then given to the baby.


1) Consider the image seen here. The image, at point Y, represents the process of
es
A) hydrolysis; lipid
B) hydrolysis; saturated fat
dehydration synthesis, lipid
D) dehydration synthesis, protein

Answers

Answer:

you did put a picture but im pretty sure its a lipids

Explanation:

oxygen is essential in cellular respiration what is role of hidden in the electron transport chain​

Answers

Answer:

What is Oxygens role at the end of the Electron Transport Chain. Oxygen serves as the final electron acceptor of the Electron Transport Chain. Thus, oxygen is essential for getting rid of low- energy electrons and hydrogen ions, the wastes of Cellular Respiration.

Explanation:

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If one plant is named Salvia greggii and another is named Salvia vanhouttei, what does this tell you about these plants?

A.) They belong to the same genus and can interbreed.
B.) They belong to the same genus and to different species.
C.) They belong to the same species and to different genuses.
D.) They belong to the same species and can interbreed.

Answers

C.) They belong to the same species to different genuses.

Answer:

They belong to the same species and to different genuses.

Explanation:

after dogs, what is thought to be the first domesticated farm animal?

Answers

Answer:

sheep and goats

Explanation:

Match the color components of light with the resulting color of light
A. Yellow
B. White
C. Magenta
D. Cyan
____1. Red + Green
____2.Red + Blue
____3. Green + Blue
____4. Red + Green + Blue

Answers

1. A
2. C
3. D
4. B

Explanation:

Answer:

» 1. A. Yellow » 2.C. Magenta» 3.D. Cyan » 4.B. White

Why is human blood red and not blue such as squid & snail blood?
Hemoglobin contains copper that gives the blood the red color when exposed to
oxygen
Hemoglobin contains magnesium that gives the blood the red color when
exposed to oxygen
Hemoglobin contains iron that gives the blood the red color when exposed to
oxygen

Answers

Answer:

it contains iron that gives it the red color when exposed to oxygen

Human blood-red and not blue because Hemoglobin contains iron that gives the blood the red color when exposed to oxygen. The correct option is c.

What is hemoglobin?

Hemoglobin is a red color pigment that is present in the blood. It contains a heme group that carries oxygen into the body and carries carbon dioxide outside the blood. It is red and in some animals, it is blue because of copper.

Hemoglobin is made up of four protein chains that each bind an additional ring-shaped chemical structure called heme. Our red blood cells are red because of the heme groups in hemoglobin. In turn, our blood is red because of the millions of red blood cells that it contains.

Therefore, the correct option is c. Hemoglobin contains iron that gives the blood a red color when exposed to oxygen.

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why do x-linked conditions appear more frequently in males than in females?

Answers

Answer:

Because, with females, who have two x-chromosomes, meaning both parents (mother and father) have to pass down alleles for the condition, and males only need one parent (mother) to pass down the condition for the male to have the mutation

X-linked conditions appear more frequently in males than in females because:-

In males there is only one X chromosome.Any X linked condition will appear in males as there will no other X chromosome to dominate it.In female there are two X- chromosome. If any one of the two X chromosome has defect other chromosome will dominant it and will the female will act as a carrier.

What are X linked disorder?X-linked disorders are caused by variants in genes on the X chromosome, one of the two sex chromosomes in each cell. In males who have only one X chromosome, an alteration in the only copy of the gene in each cell is sufficient to cause the condition.

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Which organ is Two tissue

Answers

Answer:

Organs, such as the heart, the lungs, the stomach, the kidneys, the skin, and the liver, are made up of two or more types of tissue organized to serve a particular function.

Explanation:

the primates that spend the most time walking upright are the _____.

Answers

Answer:

Hominids

Explanation:

The period during which an excitable membrane cannot respond to further stimulation is the ________ period.

Answers

Answer:

refractory period

Explanation:

refractory period is a period of time during which an organ or cell is incapable of repeating a particular action

the process of making an exact copy of dna is called

Answers

Answer:

Replication

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.

which of the following organisms obtain their energy from producers only

Answers

Answer:

heterotrophs.

Explanation:

Organisms that obtain their energy from producers or other consumers are heterotrophs.

During incubation, antimicrobials applied to the bacterial lawn become increasingly _________ as they diffuse out of the disk into the medium.

Answers

Answer:

Meee-boop

Explanation:

Ped0

Most of Earth's species of flowering plants depend on insects to pollinate their flowers.


True
Or
False

Answers

Answer:

True :)

Explanation:

Most species of flowering plants rely on vectors to move pollen and these vectors include insects, butterflies, birds, water and wind.

Limitations of artificial classification

Answers

A major disadvantage of artificial classifications is that they have little predictive value; arbitrarily selected properties do not necessarily correlate well with each other. This generally means that they are of little use for purposes other than that for which they were designed.

how is the structure of a leaf optimized for photosynthesis

Answers

Answer:

- The upper epidermis of the leaf is transparent, allowing light to enter

- They have a large surface area to volume ratio, allowing more light to enter

The upper epidermis of the leaf is transparent, allowing light to enter and they have a large surface area to volume ratio, allowing more light to enter.

What is responsible for photosynthesis to occur?

The mesophyll cell is responsible for photosynthesis occurs. The majority of the chloroplasts and the primary site of photosynthesis are located in the palisade layer. The area of storage and gas exchange is the airy, spongy layer. The stomata control the water and carbon dioxide equilibrium.

For gaseous exchange and photosynthesis, leaves are suited. Since they have a wide surface area and stomata, which enable carbon dioxide to enter the leaf and oxygen to exit, they are well-equipped for photosynthesis.

Chloroplasts, which is known as the house the chlorophyll in plants, are where photosynthesis occurs. The thylakoid membrane, a third inner membrane that creates lengthy folds inside the chloroplast and is bordered by a double membrane, is present inside chloroplasts.

Therefore, The upper epidermis of the leaf is transparent, allowing light to enter and they have a large surface area to volume ratio, allowing more light to enter.

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Predict how the absence of phytoplankton in the coral reef could affect the entire community

Answers

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Producers– These are autotrophic organisms which make their food through photosynthesis. Green plants, algae, and chemo-synthetic bacteria are all examples of producers in marine habitats.

why does modification of roots occur? give any two / causes class 8​

Answers

- The roots modify to absorb + transport water & minerals from the soil to different parts of the plant

- They are modified for support, food storage, and respiration

- Roots are modified into other forms to do different functions than their normal functions

- Modification in root can also occur when there is a permanent change in the structure of the root system

(Gathered + reworded information from a few different users who answered the same question elsewhere on Brainly.)

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Which is true about water molecules?

A. Water molecules are nonpolar, meaning their charges balance each other out.

B. Water molecules are polar, meaning they have a net partial negative charge.

C. Water molecules are polar, meaning they have partial negative and positive
charges.

D. Water molecules are nonpolar, meaning they do not interact with each other.

Answers

Answer: B

Explanation: Water molecules have an unequal charge making them more negitive than positive.

Answer:

B

Explanation:

Water molecules are polar, meaning they have a net partial negative charge.

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Question 4 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. It helps the cell absorb as many different molecules as possible.
оо
B. It is better for the cell if most molecules are prevented from
entering.
C. Transport proteins allow only enzymes to pass through the
membrane.
D. The cell works better when it contains fewer proteins.
SUBMIT

Answers

Answer:

the answer is B

Explanation:

bcuz its right

Which of the following statements about the functions of the female reproductive system is FALSE?

Answers

Answer:

c. The functions of the female reproductive system end after a baby is born.

Explanation: is false. post protected

Explain how water move from cell to cell in a leaf

Answers

Answer:

By osmosis, water enters the root and travels through the root cells until it reaches the xylem vessels. These canals carry water from the stem to the leaf. Transpiration is the process of removing water from the leaves of plants via evaporation.

Explanation:

Water moves from cell to cell in a leaf through a process called transpiration, facilitated by a combination of cohesion, adhesion, and capillary action in the plant's vascular system.

Transpiration: Transpiration is the process by which water vapor exits the leaf's stomata (tiny openings on the leaf surface) into the surrounding atmosphere. As water vapor evaporates from the cells within the leaf, it creates a lower pressure within the leaf's interior, drawing water molecules from neighboring cells.

Cohesion refers to the attraction between water molecules, causing them to stick together. Adhesion, on the other hand, is the attraction between water molecules and the surfaces of other materials, such as the walls of plant cells and the walls of xylem vessels. These properties work together to create a continuous column of water within the plant's vascular system, allowing water to move upward from the roots to the leaves.

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An organelle that releases energy for metabolic activity in a nerve cell is the...?

Answers

Answer:

Mitochondria

Explanation:

Mitochondria is an organelle that creates energy in the form of ATP in all living cells.

3. How does a tongue help in the process of digestion?​

Answers

Answer:

the tongue helps in the process of digestion by facilitation the movement of food while chewing and assisting the process of swallowing

Explanation:

A student unpacks his lunch and spreads out the potato chips on the brown paper lunch bag. Within minutes the student notices translucent spots on the lunch bag.

The translucent spots on the lunch bag indicate the potato chips contain which organic molecule?


carbohydrates

proteins

lipids

nucleic acids

Answers

lipids i'm pretty sure
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