The effect of cholesterol on membrane fluidity at physiological temperatures is to Choose one: A. prevent lateral movement of phospholipids and thereby decrease membrane fluidity in that region. B. maintain membrane fluidity due to exclusion of saturated glycerophospholipids. C. rigidify membranes by forming a complex that bridges the inner and outer leaflets. D. maintain membrane fluidity through its disruption of fatty acid packing.

Answers

Answer 1

Answer:

The correct answer is  D. maintain membrane fluidity through its disruption of fatty acid packing.

Explanation:

Cholesterol is a steroid lipid and is a constituent of biological membranes. It regulates the fluidity of the membrane (so, option C is not correct). Since cell membranes are composed of another type of lipids, the phospholipids, which form a bilayer, cholesterol distributes between the phospholipid tails and avoids these molecules pack each other forming rigid clusters. Thus, the option which better explains the effect is D. maintain membrane fluidity through its disruption of fatty acid packing.


Related Questions

How do the human abilities of hearing and sight relate to the properties of
waves you have learned about in this unit?

Answers

i need help i think the answer is6

Villi and microvilli help to absorb nutrients in your small intestine.
True
False

Answers

Answer:

True

Explanation:

Microvilli: The cells on the villi are packed full of tiny hairlike structures called microvilli. This helps increase the surface of each individual cell, meaning that each cell can absorb more nutrients.

Answer: TRUE

Explanation: Villi are folds on the small intestine lining that increase the surface area to facilitate the absorption of nutrients. Absorptive cells that line the small intestine have microvilli, small projections that increase surface area and aid in the absorption of food.

So, the correct option is 'True'.

plzz mark as brainliesttt

Vocabulary: amino acid, anticodon, codon, gene, messenger RNA, nucleotide, ribosome, RNA, RNA polymerase, transcription, transfer RNA, translation Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Suppose you want to design and build a house. How would you communicate your design plans with the construction crew that would work on the house

Answers

Answer:

Provide designs in the written form.

Explanation:

You will communicate with your design plans with the construction crew through designs or layout on the paper which they follow during building of the house. The best way to tell about the designs of your house is to made the design on the paper correctly. This design in the written form helps and guide the workers to build the house just like you wanted to be. Orally telling about the designs sometimes causes mistakes in the building of house so written form is the best way.

What volume will 1.2 mol of N, occupy at 17°C
and 2.0 atm?

Answers

Answer:

14.284

Explanation:

Know parameters from the problem are: the amount of the substance/ gas molecule is 1.20 mol, the Temperature of the gas is 17 Celsius degrees (i.e. 290.15 K [17 Celsius degrees plus 273.15 K]), the pressure exerted on the container by the gas is 2.0 atm.

The unknown ( what you are asked to find) is the volume that the gas would occupy in its container under those conditions above; V=?.

We use the ideal gas equation here; PV=nRT. R in this equation is called the molar gas constant or Ideal has constant. There are many values for R given different circumstances. For the condition of this problem, R's value is 0.08205 L atm/mol K.

Make V the mathematical subject of the equation PV=nRT.

V=(nRT)/P

V=(1.20 mol x 0.08205 L atm per mol per K x 290.15 K)/ 2.0 arm

V= (28.568169 L atm mol per mol per K)/ 2.0 atm

V= 14.284 [(L atm mol K)/(atm mol K) atm mol K is in the numerator and the denominator would be canceled. Leaving only L.

Therefore, V= 14.284 L of N

In summer squash, white fruit (H) is dominant over yellow (h), and the flattened disc-shaped fruit (D) is dominant over the spherical fruit (d). Examine this cross: HHdd x hhRD, and answer the following questions. (You can use a Punnett square to answer the questions, but you do not need to include it on this worksheet. If you do, it will not be graded.)
a) Does this cross represent a monohybrid cross or a dihybrid cross?
b) What percentage of the offspring from this cross are expected to have the HHDD genotype?
c) What percentage of the offspring from this cross are expected to have the hhDD genotype?
d) What percentage of the offspring from this cross are expected to have the HhDd genotype?
e) What percentage of the offspring from this cross are expected to produce white and disc-shaped fruits?
f) What percentage of the offspring from this cross are expected to produce white and spherical fruits?
g) What percentage of the offspring from this cross are expected to produce yellow and disc-shaped?

Answers

Answer:

a. It is a dihybrid cross

b. 0%

c. 0%

d. 0%

e. 100%

f. 0%

g. 0%

Note: Answers are given assuming that hhRD = hhDD

Explanation:

a. The cross, HHdd x hhDD is a dihybrid cross involving two traits: fruit colour and fruit shape

2. Gametes produced in the cross are given below:

for HHdd= Hd and Hd

For hhDD = hD and hD

Offspring produced in the cross:

All HhDd, which represents white and the flattened disc-shaped fruit white since They are both dominant characters.

b. Percentage of the offspring from this cross expected to have the HHDD genotype = 0%

c. Percentage of the offspring from this cros expected to have the hhDD genotype = 0%

d. Percentage of the offspring from this cross expected to have the HhDd genotype = 0%

e. Percentage of the offspring from this cross are expected to produce white and disc-shaped fruits (HHDD or HhDD or HhDd) = 100%

f. Percentage of the offspring from this cross expected to produce white and spherical fruits (HHdd or Hhdd) = 0%

g. Percentage of the offspring from this cross expected to produce yellow and disc-shape (hhDD or hhDd) = 0%

PLZ I NEED HELP ASAP

where was the first European church located
corinth
thessalonica
colosse
Philippi ​

Answers

Answer: Philippi ​

Explanation:

Trust

lab activity blood type pedigree mystery Joseph and rita

Answers

A is the correct answer


A red flowered plant (RR) is crossed with a white flowered plant (WW) and produces plants with pink flowers (RW). If two pink flowered plants are crossed, what color offspring could be produced

Answers

Answer:

It would be 100 % pink.

Explanation:

Pink and Pink make Pink. Just as Red and White make Pink.

Due to incomplete dominance, when two pink flowered plants are crossed, the color of offspring could be 1Red: 2Pink :1White.

What is incomplete dominance?In some cases it happens that a certain characteristics does not match with either of their parents, rather it shows new traits.For example: snapdragon.When parent generation of red flowered plant (RR) is crossed with a white flowered plant (WW), F1 produces plants with pink flowers (RW). it does not resembles either of their parents.And when F1 was self pollinated: RW x RW, it produces 1 RR: 2RW: 1WW.

Hence, the offspring will be 1 Red flowered plant: 2 Pink flowered plant :1 White flowered plant.

To know more about incomplete dominance here

https://brainly.com/question/14053639

3SPJ2

why should the ureter be less robust than the vas deferens

Answers

Answer:

The vas deferens, also called ductus deferens, is part of the male reproductive system of many vertebrates; these ducts transport sperm from the epididymis to the ejaculatory ducts in anticipation of ejaculation. It is a partially coiled tube which exits the abdominal cavity through the inguinal canal.

Explanation:

List 5 reasons why earth is under populated

Answers

Answer:

The earth is unpopulated by natural causes yet many causes in people all over the earth some personal reasons could be do to: infertility, still -born births, misc arriage, and health problems. But as proved and seen today there are many natural causes such as:  kill ings, police bru tality , life- threa tening diseases, dome stic viole nce, suic ide, and many things that go unnoticed  in communities around us that causes earth to be unpopulated.  

Explanation:

Quick question. I am trying to cite my sources for my biology research project and the website that I used is a rare disease informational center with different topics. For example there is a summary section, a symptoms section etc.... I need to cite my sources however each section has a different publication date because they don’t update the entire article at once. I am currently trying to use an in text citation for the summary because I used a quote from the summary so do I just use the summary publication? But I did use other sections of this website for other parts of my essay so when it comes time to making my bibliography what do I do

Answers

Answer:

For your bibliography, you need to put the website but also put the sections you got your examples from. Also, don't forget to put the person who published the summary down as well. Hope this helped

Explanation:

I may be in high school but from time to time I'm in the same situation at school when it comes to things like this.

What do motor neurons do? URGENT FOR SCIENCE 20 POINTS!!!!!!!!!!!!!! BRAINLIEST

Answers

Answer:

neurons transmit impulses from the spinal cord to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements

I think...............

Answer:

"Motor neurons of the spinal cord are part of the central nervous system (CNS) and connect to muscles, glands and organs throughout the body. These neurons transmit impulses from the spinal cord to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements."

Explanation:

G o o g l e helped me answer your question, I hope this helps with your science.

how might abnormalities in an animal’s anatomy or Physiology have a negative impact on its health and well-being​

Answers

Since each system of an animal works to maintain homeostasis in the body, an abnormality in the animal’s anatomy or physiology can disturb this flow, forcing the other systems to change in order to keep the balance of homeostasis. An abnormality of one part of an animal’s physiology can affect multiple parts.

Describe how water is recycled from the atmosphere back to the root​

Answers

Answer:

Explanation:

when the water is in the atmoshere clouds will create and when it falls it rains over plants and etc so it goes into the roots of plants.

A squirrel has 40 chromosomes in a somatic cell.
a. How many homologous pairs are found in a diploid cell?
b. How many single chromosomes (unreplicated) are found after the Sphase?
c. How many chromosomes are present in one cell at the end of meiosis II?
d. How many chromatids will be found at the beginning of meiosis I?
e. How many cells will be produced at the end of meiosis II?
f. How many tetrads will form in mitosis?

Answers

Answer:

How many homologous pairs are found in a diploid cell? 22 pairs

b. How many single chromosomes (unreplicated) are found after the Sphase? 46 chromosomes  

c. How many chromosomes are present in one cell at the end of meiosis II?  15 chromosomes

d. How many chromatids will be found at the beginning of meiosis I? 92 chromatids  

e. How many cells will be produced at the end of meiosis II? four

f. How many tetrads will form in mitosis?  23 different tetrads

Explanation:

hope this helps! make me brainest please

In Mendel’s experiments, what proportion of the purebred tall and short pea plants when they were fertilized were all tall?

Answers

Answer:

the ratio of 3:1

3. Fungi and bacteria are considered biotic abiotic​

Answers

Biotic. They are part of the atmosphere/ecosystem and can reproduce.

Answer:

Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.

Explanation:

Organisms that produce

Answers

Answer:

Autotroph or producers

Explanation:

An organism that produces its own food is a autotroph

Cell homeosyasis virtual lab

Answers

Answer:

ok where's the lab and how can i help?

Explanation:

12. Individuals with Type O blood are able to produce both Anti-A and Anti-B antibodies, while individuals with Type AB blood produce neither of these antibodies. Explain why this is the case. How does this relate to the idea that people with Type AB blood are often referred to as universal recipients for transfusions

Answers

Answer: Blood group O individuals are able to produce Anti- A and Anti- B and are often referred to as UNIVERSAL DONORS, while blood group AB individuals produces none and are often referred to as UNIVERSAL RECIPIENTS

Explanation:

Two antigens, type A and type B, occur on the surfaces of the red blood cells in a large proportion of human beings. These antigens are referred to as agglutinogens because they often cause blood cell agglutination during blood transfusion. Because of the way these antigens are inherited, people may have neither of them on their cells , they may have one or they may have both simultaneously.

When type A antigen and type B antigen is not present in an individuals reb blood cell as seen in blood group O, antibodies known as Anti-A and Anti- B develops in the plasma. This is because small amounts of type A and type B antigens enter the body through food, bacteria and other ways and they initiate the development of anti A and Anti- B antibodies in their plasma.

Furthermore, individuals with blood type AB has antigen A and B on their red blood cells and therefore do not develop antibodies A and B in their plasma. This makes them universal recipient as their blood do not discriminate any ABO blood group during blood transfusion.

Plz help fast!!!
Which of the following is most likely the reason why there are more long beaked woodpeckers than short-beaked woodpeckers in an environment?

The long-beaked woodpeckers are more attractive to predators.

The long-beaked woodpeckers have more flight stability.

The long-beaked woodpeckers can reach more insects in tree bark.

The long-beaked woodpeckers reproduce in smaller numbers.

Answers

Answer:the answer is c

Explanation:as having a longer beak allows the woodpecker to reach more bugs within the tree meaning they can survive and also provide for the offspring with the more insects it can reach

how do the kidneys maintain homeostasis in the body?

Answers

The kidneys remove waste products from metabolism such as urea, uric acid, and creatinine by producing and secreting urine. Urine may also contain sulfate and phenol waste and excess sodium, potassium, and chloride ions.

Why are people who go to strip clubs generally NOT considered to be voyeurs?
Group of answer choices

The nudity of the performers is not complete.

There is no sense that people who go there are doing something frowned on by society.

The performers are consenting to being seen by the audience.

The performers are exhibitionists and it's impossible for someone to simultaneously be an exhibitionist and a voyeur.

Answers

Answer:

The performers are consenting to being seen by the audience.

Explanation:

A voyeurist experiences pleasure from observing someone else having sexual relations, undressing, or performing any sexual activity. The voyeurist does not have the person's consent to watch, and they find ways to do it from a distance or with discrepancy. Part of their pleasure is from observing the person without consent, and another part is from observing the person engage in sexual activities. They do not desire to be in a sexual relationship with the observed person; they want to watch.

People who go to strip clubs do not observe from afar and hiding from the performer. They have the consent of the performers, which is the opposite of what attracts a voyeurist.

A model for gene expression and regulation is shown here. Not all genes are expressed at all time, and a study of the proteins within
a cell indicates that not all of the gene products are present within a cell. Analyze the model and evaluate which statement(s) below
are correct based on the gene expression. Select ALL that apply.
A)
Inactive DNA prevents the gene expression at the earliest stage.
B)
Removal of the mRNA before it is translated can regulate the gene
expression
Regulation of the mRNA is the most efficient mechanism for reducing gene
expression.
D)
DNA, once transcribed, will produce multiple protein products with very
little regulation in the process.
The targeted destruction of the protein can reduce the overall expression
of the gene at a later stage in the process.
E)
Genetic Information in Cells

Answers

Answer:

A)Inactive DNA prevents the gene expression at the earliest stage.

B) Removal of the mRNA before it is translated can regulate the gene

E) Genetic Information in Cells expression

Explanation:

3. What is the main cause of acid rain?
*
a. decrease in ozone levels
O b. burning of fossil fuels
c. changes in the atmosphere
O d. changes in the climate

Answers

Your answer is Burning of fossil fuels

If there's a higher concentration of solutes outside of the cell what will happen

Answers

Answer:

If there's a higher concentration of solutes outside of the cell (the solution is known as hypotonic solution) then the cell will swell up as the solutes will flow into the water through the process of osmosis. The cell may also swell up & burst (if it's an animal cell).

3 Stimuli Plants that adapt to

Answers

Water, gravity, and light.

Answer:

-light

-gravity

-water

Which of the following best describes the role of cells in living organisms

Answers

Answer:

l

Explanation:

Animals use energy from their food to do all of the following , except

A. move
B. complete photosynthesis
C. repair their bodies
D. grow

Answers

b is the correct answer

All blood vessels containing oxygenated blood are colored red EXCEPT for ?

Answers

Answer:

deoxygenated blood i think

Explanation:

White blood cells I think
Other Questions
Without the natural filtration system of a wetland, money would most likely be spent onbuilding barrier islands.coastal rebuilding efforts.waste water treatment plants.non-point source pollution clean up. Please explain your steps when solving the equation:-3b + 6 = 18 The Honda Accord was named the best midsized car for resale value for by the Kelley Blue Book (Kelley Blue Book website). The file AutoResale contains mileage, age, and selling price for a sample of Honda Accords. Click on the datafile logo to reference the data. The estimated regression equation is Round your answers to the nearest dollar. a. Estimate the selling price of a four-year-old Honda Accord with mileage of miles. Taylor uses a globe as a model to explain why we have day and night on Earth.Question: How can Taylor complete his model and use it to explain day and night on Earth?First, identify one other object needed to complete the model.Explain why this object should be included, and suggest how Taylor could represent this object in his model.Then, describe how Taylor should move the parts of his model to show the causes of day and night.Finally, identify the amount of time this movement would take in the real world. Look up the meanings of the following words.1. Sky-rocket-high 2. Overwhelming3. Aggressive4. Exhausted5. Groceries6. Wearily7. a sigh of relief8. made our way9. accompanied10. pleasant Which of thefollowing uses thepreterit tense?A. Ella viva en un castillo enormeB. Tena pelo largo.C. Un da ella vi un hombre What is one reason Dante most likely wrote the intend Identify the form of communication in which an individual both speaks up for their rights and also takes others' rights and feelings into account.a.Assertive communicationb.Passive communicationc.Aggressive communicationd.Empathetic communication The formation of a new community where another community already exist is known as The area of a right triangle is 3gh. Find the height if the base is 3gh.Area of a triangle: A = 1/2bh En una muestra de 50 restaurantes de comida rpida, la venta media fue de $3.000, y la desviacin estndar, $200. El intervalo de confianza del 95% es in the poem of the exposed nest, "and might our meddling make her more afraid" is an example of a. consonance b. assonance c. alliterationd. half rhyme What does the word Super Tosches camellias Tosches mean? How do Uncle Septimus's grandchildren makeuse of his beard? Question 1 of 10Which of these is the note A?O A.B.90.c.90.MATa9.HA Identify the correct sentence.O A. Thursday is Lisa's birthday we'll take her out to dinner.OC. Thursday is Lisa's birthday, we'll take her out to dinner.OB, Thursday is Lisa's birthday and we'll take her out to dinnerOD. Thursday is Lisa's birthday, we'll take her out to dinner. how are plants healthy Can somebody please help how many neurons are in phosphorous What is the area of the parallelogram?