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e-lub [12.9K]
3 years ago
9

Which of the following is the critical function of proteins?

Biology
1 answer:
Svetllana [295]3 years ago
5 0

Answer:

A critical function of proteins is their activity as enzymes, which are needed to catalyze almost all biological reactions.

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how factors such as blood pressure blood volume blood viscosity resistance disease and exercice affect blood flow
schepotkina [342]

Blood is essential for many organisms, such as humans and animals, for its important function of transporting substances (food, oxygen), vitamins, waste (carbon dioxide), hormones, etc. to all tissues and cells of the body.

1) Blood volume

If the blood volume increases ==> the blood flow increases.

2) Viscosity of blood

If we have an increase in blood viscosity ==> we have a decrease in blood flow

3) Peripheral Resistance

If there is an increase in peripheral resistance ==> the blood flow decreases

4) Diameter of blood vessels

If we have an increase in diameter of

blood vessels ==> decreased peripheral resistance ==> increased blood flow

5) Blood pressure

If the blood pressure increases ==> the blood flow increases.

6) In case of diseases

In the case of atherosclerosis or acute coronary syndrome ==> blood flow decreases.

7) Physical excercises:

During physical exercises ==> the heart rate increases ==> the blood flow increases.

3 0
3 years ago
A genotype is controlled by the sex cells combining to form an organism. True or False
myrzilka [38]

True

A genotype is the combination of genes in its DNA of the organism that determines its traits

Explanation:

Gametes from parents contribute different alleles of genes to their offspring. This why gametes carry only one copy of genetic material of the organism. They later fuse to form a zygote with a full genetic copy and capable of developing into an full organism.

Depending on which kind of alleles the parents pass down to the offspring will determine the offspring's genotype. The genotype of the offspring will, on the other hand, affect its phenotype which is the outward characteristic. An example is the sickle cell trait. If both gametes from the parents contribute the recessive alleles of the gene, then the offspring will be homozygous recessive for sickle cell genotype and this will show in the phenotype pf the person who will have sickle cell shaped blood cells.

Learn More:

For more on genotype check out these;

brainly.com/question/11612019

#LearnWithBrainly

6 0
3 years ago
Ruby's father has curly hair and her mother has straight hair. Ruby, however, has wavy hair. What could be the reason for this?.
aliina [53]
The reason behind this is that <span>Ruby inherited both alleles, which are incompletely dominant. The correct option among all the options that are given in the question is the third option or option "C". I hope that this is the answer that has actually come to your great help.</span>
6 0
3 years ago
Read 2 more answers
Can natural selection cause mutations? Why or why not?
bulgar [2K]
I believe the answer is A!
3 0
3 years ago
What does it mean when a scientist uses the word theory
Evgen [1.6K]

Answer:

well theory is ranked second highest in certainty in scientific nomenclature. theory dictates it is more certain of a principle than a hypothesis yet not concrete enough to be a law. examples are the theory of evolution versus the law of gravity

8 0
3 years ago
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