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

How do the properties of lipids
help explain the structure of a cell membrane?

Answers

Explanation:

Lipids give cells membranes a flexible structure which forms a strong barrier between the cell and its surroundings

Answer:

Lipids give cells membranes a flexible structure which forms a strong barrier between the cell and its surroundings. This tells us that the lipid surrounds the structure which then forms the shape of the cell.

Explanation:

What is the term for a section of a DNA molecule that codes for proteins?

Answers

Answer:

Gene. A segment of a DNA molecule (a sequence of bases) that codes for a particular protein and determines the traits (phenotype) of the individual.

Explanation:

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What differences are there in the growth of the human population compared to the animal/plant population?

Answers

Answer:

Explanation:

In both plants and animals, there are parts of the body designed to carry the nutrients needed for growth. In a animal it is blood and in a plant, it is the Xylem and Phloem Tissue Humans are born with a set number of limbs and if one get's cut off it cannot regenerate. Because of this, we are increasingly cutting into resources that other species must use in order to survive. We have hindered, or even ended the lives, of numerous species. Today, 99% of the species still remaining on this planet are at risk because of human activity alone.The similarities in the population growth of humans with respect to plants and animals is that, in the three cases, the growth occurs exponentially with respect to the initial number of specimens

PLZ HELP! why it is important to base scientific theories and models on empirical evidence as opposed to other ways of knowing such as religion​?​

Answers

Answer:

A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory.

Explanation:

)
Check out the areas of low pressure on the weather map. Which of these is NOT characteristic of low pressure areas?
A) Storms are likely
B) Weather is cooler and drier.
Weather is wetter and warmer.
D) Air is less dense and the formation of clouds more likely.

Answers

Answer: B

Low pressure tends to bring storms with it, form clouds and allow for the weather to be wetter and warmer. High pressure bring cooler and drier weather.

Photolysis is a part of which cycle? a. Phosphorus b. Oxygen c. Nitrogen d. Carbon Please select the best answer from the choices provided A B C D.

Answers

Answer:

B Oxygen

Explanation:

it's the answer for your question..

Answer:

It is B

Explanation:

What are the two stages of photosynthesis represented

Answers

Answer:

Light dependent reactions and light independent reactions.

Recall what you know about hypertonic, hypotonic, and isotonic solutions. When an environment is hypotonic, what happens
to the cell?

Answers

Hypotonic solutions are lowly concentrated solutions
Hypertonic are highly concentrated solutions
While isotonic have equally concentrated

When a cell is placed in a hypotonic sol water moves out of the cell by osmosis making the cell flaccid

When a cell is submerged in a hypotonic solution, water osmosis causes the cell to become flaccid.

What is osmosis?

A semi-permeable membrane is used in the process of osmosis, which allows solvent molecules to move from a solution of low concentration to a solution of high concentration.

Osmosis is a passive process that doesn't require any energy to complete. In order for the concentrations on either side of the membrane to be equal, molecules must shift from an area of greater concentration to one of lower concentration.

Any solvent, including gases and supercritical liquids, can go through the osmosis process.

When solute concentrations inside and outside of the cell are equal, an isotonic solution has been created.When the concentration of solutes outside the cell is higher than within, the solution is said to be hypertonic. When the concentration of solutes inside the cell is higher than outside, the solution is said to be hypotonic.

Therefore, when a cell is submerged in a hypotonic solution, water osmosis causes the cell to become flaccid.

Read more about osmosis, here

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how is the reproduction of bryophytes similar to that of ferns?

Answers

Answer:

see below

Explanation:

Reproduction relies on water so that sperm can swim to the egg. Breophytes and ferns both have sperm. ... Ferns require water for the sperm to swim, but breophytes the sperm are released directly on the feralization site, and don't need to swim.

into what organelle might the cellular products be placed?

Answers

Answer:

Explanation:

Shipping department - Golgi apparatus

Factory interior - Cytoplasm

Vessels- Cellular package containing products such as protein

Warehouse for storage of products -Vacuole

There are different function or different department of every cell organelles and these are mentioned below:

Shipping department - Golgi apparatus

Factory interior - Cytoplasm

Vessels- Cellular package containing products such as protein

Warehouse for storage of products -Vacuole

What are cell organelles?

The term cell organelles has been defined as the organ or part of the cell which has been considered as the part of the cell. Cell organelles are mitochondria, ribosomes, vaccuoles, cell wall, endoplasmic reticulum, nucleus and many more.

In the cytoplasm, tRNA, play major role in protein synthesis and tRNA brings amino acids to the ribosome according to the codon in the mRNA which is translating. tRNA contain anti-codon which recognize and bind to the codon as by base pairing  where they are linked to protein synthesis as well as tRNA is loaded by aminoacyl-tRNA synthetase enzyme with correct amino acid, which they bring to ribosome for protein synthesis.

Therefore, Shipping department - Golgi apparatus

Factory interior - Cytoplasm

Vessels- Cellular package containing products such as protein

Warehouse for storage of products -Vacuole

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What function or process is common to all living things?

Answers

Answer:

respiration

Explanation:

because the food is wanted by all and we all take breathe

Phloem is used to transport sucrose and amino acids in plants. Sucrose is a carbohydrate. Describe the uses of carbohydrates and amino acids in plants.

Answers

Answer:

1. carbohydrates help to produce a part of cellulose. carbohydrate produces the vital source of energy, carbon skeletons for organic compounds, and storage of components.

2. Amino acids help in the ion transportation, modulation of stomatal opening, maintaining the level of detoxification.

What are the three sections of the female part of the flower called?
a) style, stamen, and pollen
b) stamen, ovary, and pollen
0 ) anther, pollen, and filament
d) stigma, style, and ovary

Answers

Answer:

D

Explanation:

Answer:

D

Explanation:

What is the science in which earthquakes are studied called?

A. Plate Tectonics
B. Earthquake Science
C. Wave Science
D. Seismology

Answers

Answer:

D. Seismology

hope helpful <3

Answer:

D. Seismology

Explanation:

Seismology is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies.

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John goes to work by car or by train.
(a) The probability that John goes by car is 04
Work out the probability he goes by train

Answers

Answer:

0.6

Explanation:

1 - 0.4 = 0.6

Probability will always be out of 1  therefore if the probability of John going to work by car is 0.4 then going by train would be 0.6.

organism that makes its own food

Answers

« autotroph »

An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals

hope it helps

Answer:

Explanation:

autotrophs

An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms.


Plant cells can produce glucose.
Suggest why yeast cells cannot produce glucose.

Answers

Answer:

Glucose can still be broken down in the absence of oxygen in order to meet the cells energy requirements. In plant and yeast cells pyruvate is converted into carbon dioxide and a type of alcohol called ethanol.

Explanation:

Explanation:

This was what I saw on the internet

Glucose can still need broken down in the absence of oxygen in order to meet the cells' energy requirements. In plant and yeast cells, pyruvate is converted into carbon dioxide and a type of alcohol called ethanol.

What are S-strain and R-strain bacteria?

Answers

Answer:

When Frederick Griffith discovered two strains of Streptococci in 1923, the bacteriologists were intrigued by the differences between them: the S (smooth) strain, which produces colonies that are smooth and shiny on a lab plate; the R (rough) strain, which lacks a polysaccharide coat and produces colonies that are rough and irregular on a lab plate.

Explanation:

b19 , b20



help!!



need answer



pls also check my other questions!

Answers

Help what is the question

explain four ways in which saprophytes are economically important in nature.​

Answers

Answer:

They break down dead and decaying organic matter into simple substances

Explanation:

.

Explain why the sperm cells differ from other cells in the male

Answers

sperms are gametes (reproductive cells) which have half the number of chromosomes (22 autosomes +1 sex chromosome) .Those cells have 23 chromosomes only as their nucleuse fuses *during fertilization* with the ovum's nucleuse which has 23 chromosomes as well . Also it has a special structure which makes it adapted for movement since it's a mobile cell

Think back to the activity from the beginning of the lesson. After what you have
learned about substances and mixtures, how have your ideas changed?

Answers

Answer:

......what lesson....

Explanation:

would you mind clearing up the question a little

Is scientific law a proven concept? Explain why or why not.​

Answers

n general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory. It is a misconception that theories turn into laws with enough research.

Phân biệt các bệnh của bệnh di truyền đơn gen

Answers

Explanation:

please tell in english

altering the environment to minimize the stimuli for eating is called

Answers

Answer:

Stimulus control

Explanation:

You are controlling the stimuli. Altering the environment to influence, in this case minimize, stimuli is an example of stimulus control.

What are the little hairs that line the nasal cavity and help trap microorganisms?

Answers

Answer:

c. Cilia is correct

Explanation:


I need to know the answers to what the solutions are.

Answers

Answer:

honestly same.

Explanation:

I don't know this complex science

the movement of water into the atmosphere from plants is

Answers

Answer:

Transpiration

Explanation:

Process through which plants lose water into the atmosphere

Answer:

Transpiration

Explanation:

The process by which water moves into the atmosphere from plants is transpiration

What inputs of photosynthesis move through the stomata?

Answers

Answer:

The gas exchange of carbon dioxide and oxygen occurs through the stomata.

Explanation:

Hope this helps.

The movement of gas in the opposite direction

the endocrine system is responsible for communication in the body using

Answers

Answer:

using your hormones as a chemical message to your brain

Explanation:

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