vitamin(a) retinol function on the body​

Answers

Answer 1

Answer: Function. Vitamin A helps form and maintain healthy teeth, skeletal and soft tissue, mucus membranes, and skin. It is also known as retinol because it produces the pigments in the retina of the eye. Vitamin A promotes good eyesight, especially in low light. Vitamin A (retinol) is ingested as either retinyl esters or carotenoids and metabolized to active compounds such as 11-cis-retinal, which is important for vision, and all-trans-retinoic acid, which is the primary mediator of biological actions of vitamin A

Explanation:


Related Questions

C. What is the word for an Enzyme that has fallen apart or no longer works

Answers

When enzymes are no longer active and can’t function they become denatured.

What is the limiting factor for photosynthesis at night ?

Answers

Answer:

Factors that affect photosynthesis:

Light Energy/ intensity

Temperature

Carbon dioxide concentration

Therefore I believe the answer to be Light energy as we're talking about night here.

Give an example of central heating and of local heating.

Answers

Answer:

A central heating system provides warmth to the whole interior of a building from one point to ... Institutional heating systems (office buildings or schools, for example) can use low-grade, inexpensive

An alternative to district heating would be to build a small district heating plant together with your neighbours, which is known as local heating or joint heating. ... The local heating system also includes a network of pipes and a common boiler plant that delivers heat through the pipework to the single-family houses.

Explanation:

-Eijiro <3

what would happen to the earth the moon and the sun if there was no gravity acting on these objects in space?

Answers

Answer:

Without the force of gravity from the Earth, it would just float away into space. This mix of velocity and distance from the Earth allows the Moon to always be in balance between fall and escape. If it was faster, it would escape; any slower and it would fall!

Explanation:

Hope it helps ;)

What happens if the mRNA strand is not transcribed properly?

Answers

It can produce misfolded or malfunctioning proteins. Therefore, ending in many flawed proteins. Have a good day!

Is this right guys????

Answers

Answer:

yes

Explanation:

Any variation that can help an organism survive in its environment is called a(n):

Answer Choices:
-survival toolkit
-homologous structure
-adaptation
-mutation
-differentiation
-vestigial structure

Answers

Answer:

adaptation is the answer

Adaption dndndbdbdbbdbsbs

What are the qualities of greenhouse gas? Select the two correct answers.

A. transparent to infrared radiation
B. three or more atoms in a molecule
C. produced by human activity
D. absorbs and re-emits infrared radiation
E. composed of single atoms, not molecules

Answers

Answer:

produced by human activity

absorbs and re-emits infrared radiation

Explanation:

produced by human activity

absorbs and re-emits infrared radiation

Which of the following stages of photosynthesis involves carbon fixation, reduction reactions, and the ribulose 1,5-bisphosphate regeneration?


photoreduction

light-independent reaction

light-dependent reaction

first stage photosynthesis

Answers

Answer:

light-independent reaction

Explanation:

Photosynthesis, which is a unique metabolic process where plants synthesize their food (glucose) in the presence of sunlight, occurs in two stages namely: light dependent stage and light-independent stage.

The light independent stage is also known as dark stage because it does not require light to occur. It occurs in the stroma of the chloroplast where ATP and NADPH are used to fix carbon into the production of glucose. This stage involves three major processes:

- Carbon fixation of CO2

- Reduction reactions of G3P

- Regeneration of ribulose 1,5-bisphosphate (RUBP).

Give one reason why some people do not approve of using contraceptives. [1]

Answers

Answer:

Reasons for failure to continue to use contraception include the following: for some, the risk of producing an unwanted pregnancy adds flavor to the sexual act; some women rationalize their sexual activity, and this usually leads to discontinuation of contraceptive use; failure to change the contraceptive when needs

Explanation:

I think that is right I look it up

What common breeds get affected by gastrotomy?

Answers

Answer:

Great Danes, greyhounds and german Shepherds

Explanation:

GDV tends to effect deep chested dog breeds

How do you think Nucleic Acids and Proteins work together in the body? Why are they both important to humans?

Answers

Explanation:

protein is the element responsible for building up of cells and the nucleic acid is embedded in the cell, so protein builds the whole cell including the nucleic acids.. the nucleic acid is also packed by histones which is a proteinous structure. both are important because, in the cell all organelles require protein for their growth and likewise the encoding of the genetic information carrier

Which of Earth's layers is the thinnest?
OA.
outer core
ОВ.
crust
OC.
mantle
OD.
inner core

Answers

the second one : OB- crust
Answer. crust

Explaination

The crust is made up of the continents and the ocean floor. The crust is thickest under high mountains and thinnest beneath the ocean. The continental crust consists of rocks such as granite, sandstone, and marble. The oceanic crust consists of basalt.

HELLLP HURRRY I NEED HELP

Answers

Answer:

I go with C which says the dark mice are hard to be seen against the dark. Because of this the dark mice lived to reproduction age and reproduce more dark mice.

Why are sex-linked traits like hemophilia less common in females than males?
A. Females would need to inherit two X chromosomes containing the recessive trait.

B. Females would need to inherit one X chromosome containing the recessive trait.

C. Females would need to inherit one Y chromosome containing the recessive trait.

D. Females would need to inherit two Y chromosomes containing the recessive trait.​

Answers

Answer:

A. Females would need to inherit two X chromosomes containing the recessive trait.

Which part of the neuron below is indicated by the arrow, and what is its function?


A. The axon carries information through electrical impulses away from the cell body to the axon terminals and then to other neurons, muscles, or glands.

B. The axon contains the nucleus that controls all the activities of the cell.

C. The dendrites regulate the substances that go in and out of the cell.

D. The dendrites carry the electrical impulses from the signal receivers to the cell body.

Answers

Answer:-

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

[tex]\red{\bigstar}[/tex] Which part of the neuron below is indicated by the arrow, and what is its function?

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

[tex]\pink{\bigstar}[/tex] [tex]\large\underline{\underline{\bold\green{Option. D}}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

The dendrites carry the electrical impulses from the signal receivers to the cell body.

Describe rainforests. Include how much rain they get, general location and temperature.

Answers

Answer:

The average temperature in tropical rainforests ranges from 70 to 85°F (21 to 30°C). The environment is pretty wet in tropical rainforests, maintaining a high humidity of 77% to 88% year-round. The yearly rainfall ranges from 80 to 400 inches (200 to 1000 cm), and it can rain hard

Explanation:

A student studied drawings of the following five insects from the order of Coleoptera. Which two insects are most closely related?

Answers

Answer:

D.

Explanation:

if you look at the names of the species, the first part is the same, which means they aare closely related to some point. When you look at the picture, you also notice the species look strikingly alike.

Answer:

d

Explanation:

Which statement is true about
electrically charged particles?
A. neutrons are positive, electrons are negative
B. protons are negative, neutrons are positive
C. protons are positive, electrons are negative

Answers

Answer:

C

Explanation:

protons are positive neutrons are neutral and electrons are negative

In an electrically charged particles  protons are positive and electrons are negative.

Neutron has a positive electrical charge?The charge on neutron is zero(no charge). The charge on the proton and electron are exactly the same size but opposite. The same number of protons and electrons exactly cancel one another and so atoms are neutral.

Protons have positive or negative?

A proton carries a positive charge and an electron carries a negative charge.so the atoms of elements are neutral, all the positive charges canceling out all the negative charges. Atoms differ from one another in the number of protons, neutrons and electrons they contain.

Learn more about electrical charge here: http://brainly.brainly.com/question/1487561

#SPJ2

22. Carbon dioxide gas production happens within me...
A. Chlorophyll
B. Glycolysis
C. Mitochondria
D. Ribosome

Answers

The answer is A. Chlorophyll
Chlorophyll because I think gly is like glucos and mitochondria is like energy and ribosomes they decode messages etc

Which tissues are in both leaves and roots? (Select all that apply.)
xylem
phloem
stomata
pistil

Answers

The xylem is a tissue which transports water and minerals from the roots up the plant stem and into the leaves. Xylem consists of dead cells.
it’s xylem i’m pretty sure :)

Answer:

the answer is phloem and xylem

Explanation:

they are both in the leave and the roots.

______ contains many wavelengths and is similar to sunlight at noon on a bright day.

A. Ultraviolet
B. White light
C. infrared
D. Visible light

Answers

Answer:

It should be D.

Explanation:

I hope this helps

A student models moon phases. She holds a foam ball on a stick in front of her body and then
stands in front of a light as shown. The student uses herself to represent Earth. She turns her
body slowly to represent four different moon phases.
Moon Phases Model
Earth
Light
Light
Moon
Moon
Earth
1
2
Earth
Light
Earth
Moon
Light
Moon
3
4

Answers

Answer:

The last one : D

Explanation:

The diagram that represents the modelling of a full moon is : ( D ) Diagram 4

Full moon

A Full moon occurs when the moon moves from its new moon position by 180°. At this new position, the sun ( light source ) ,earth and the moon forms a straight line.

During full moon the moon is completely illuminated when viewed from the Earth's position as well.

Hence we can conclude that the diagram that represents the modelling of a full moon is Diagram 4

Learn more about Full moon : https://brainly.com/question/649027

In the movie outbreak what was the death rate of the virus without the anti-serum

Answers

Hhhhhhhhh hvvccc ghhhhh hhhhh
The death rate was 20%

Which of these does Not occur during mitosis.
1. Separation of chromatids
2. Dissolving of the nuclear envelope
3. Division of the cytoplasm
4. Formation of chromosomes

Answers

Answer:

I'm not sure, but I think it's 4

Allows sugars and salts to pass through the membranes
is this a transport protein market protein or receptor protein?

Answers

Answer:

selective membrane

Explanation:

i think this is what you are asking

Which statement is true about all metals?

Answers

D because they can melt if it gets to hot
The answer is D she is right

What are the 2 key structures in the protein building process during this
step?

Answers

Answer: two major steps: transcription and translation

Explanation:

Together, transcription and translation are known as gene expression. During the process of transcription, the information stored in a gene's DNA is transferred to a similar molecule called RNA (ribonucleic acid) in the cell nucleus.

Please help I need the term’s definitions
17 points,
don’t copy and paste

Answers

Answer:

There you go :3

Explanation:

Paramecium- A single-celled freshwater animal that has a characteristic slipper-like shape and is covered with cilia.

Protist- A single-celled organism of the kingdom Protista, such as a protozoan or simple alga.

Protozoan- A single-celled microscopic animal of a group of phyla of the kingdom Protista, such as an amoeba, flagellate, ciliate, or protozoan.

Pseudopod- A pseudopod or pseudopodium (plural: pseudopods or pseudopodia) is a temporary arm-like projection of a eukaryotic cell membrane that are developed in the direction of movement.

Pellicle- Pellicle (biology), a thin layer supporting the cell membrane in various protozoa. Pellicle mirror, a thin plastic membrane which may be used as a beam splitter or protective cover in optical systems.

Slime Mold- Any of a group (such as Myxomycetes) of organisms formerly held to be lower fungi but now often considered protists that exist vegetative in usually moist habitats as mobile plasmodia and reproduce by spores.

???Help please ??????

Answers

Answer:

I dont think so

Explanation:

Space has a lack of air, which is how sound travels. It may make some sound, but not alot

Answer:

If they are in space then it is not realistic because sound does not travel in space. Sound is vibrations bouncing off of molecules, but there are no molecules in space to bounce off of.

Explanation:

Other Questions
Which of the following is another way to represent 5 2/6 ?A. 6 8/6B. 4 8/6C. 4 12/6D. 5 6/8 An arrow that is pulled back by a bow has which type of energy? The Skulls, a student social organization, has two different locations under consideration for constructing a new chapter house. The Skulls' president, a POM student, estimates that due to differing land costs, utility rates, etc., both fixed and variable costs would be different for each of the proposed sites, as follows LocationAnnual FixedVariableAlpha Ave.$5,000 $200per personBeta Blvd.$8,000 $150per person If it is estimated that 30 persons will be living in this new chapter house, which location should the Skulls select 30% of __ is 15 help again- 3+3+67+7+4+6+78+68+22+71+100-100=FIND THE ANSWER Two trains train a interim be weird total of 333 tons. Train hey is heavier than train B.The difference of their weight is 141 tons What is the weight of each train?? 3 - n = 9algebra what does n = What could you do to the equation 100x + 300 = 500 to change it into x + 3 = 5? Why does the Moon go through a monthly cycle from a totally dark New Moon to a fullylit Full Moon? Compare and contrast and contrast the poems "the rainy day" and "we real cool"the rainy day:The day is cold, and dark, and drearyIt rains, and the wind is never weary;The vine still clings to the mouldering wall,But at every gust the dead leaves fall,And the day is dark and dreary.My life is cold, and dark, and dreary;It rains, and the wind is never weary;My thoughts still cling to the mouldering Past,But the hopes of youth fall thick in the blast,And the days are dark and dreary.Be still, sad heart! and cease repining;Behind the clouds is the sun still shining;Thy fate is the common fate of all,Into each life some rain must fall,Some days must be dark and drearywe real cool:We real cool. WeLeft school. WeLurk late. WeStrike straight. WeSing sin. WeThin gin. WeJazz June. WeDie soon.who answer this right will get the brainliest Answer quickly!A biologist measures 10 quadrats of an area of 0.10 acre each. If the average number of daisies per quadrat is 8, how many daisies are there total in a 5-acre field? module 3 english grade 10 Help me please): please DUE ASAP PLZ HELP (brainliest if you get it right)Part APERSEVERE Mei got scores of 76, 80, and 78 on her last three history exams. Write an inequality to determine the score, x, she needs on the next exam so that her average is at least 82.Part BFill in the blanks to complete the sentence.Solve the inequality.Mei needs a score of at least ____ on the next exam. Youre running late to school and have a test in 1st period, so you beg your mom to drive a little faster. Youre about a block away from your school when your mom gets pulled over by a police officer, who issues her a speeding ticket. Is this a local, state, or federal issue?I NEED A BIG LONG ANSWER THAT MAKES SENSE :) What is the measure of AC? 12 NEED HELP ASAP WILL GIVE BRAINLY A baker has two identical cakes except that one cake is hot, and the other cake is room temperature. He places both cakes on an ice-coldplate. What happens? (Mark the one best answer.)Both cakes transfer energy to the plate.The plate transfers energy to the room temperature cake.Neither cake transfers energy to the plateOnly the hot cake transfers energy to the plate. What is a question or statement designed to provoke the reader into doing, supporting, or participating in something?O A call to actionA conclusionO Reasoning What are 5 similarities between the Roman republic and Roman Empire (make sure there true)