<h3><u>Question</u><u>:</u><u>-</u></h3>
The active site of an enzyme
a. Is where the semi-permeable membrane is located
b. Is a specific bulge of protuberance on an enzyme
C. Is a groove or crevice in the structure of the enzyme into which the substrate fits
d. Rigidly resists any alteration of its shape
<h3><u>Answer</u><u>:</u><u>-</u></h3>
C. Is a groove or crevice in the structure of the enzyme into which the substrate fits.
<h3><u>Explanation</u><u>:</u><u>-</u></h3>
The active site is one such gap or pocket to which the substrate adapts and binds to the enzyme.
The active site is the region of the enzyme to which the substrate molecule binds and causes a chemical reaction. The active site is composed of amino acid residues that form a temporary bond with the substrate.
Answer:
In the result of meiosis, testes produce 4 small mature sperm while ovaries produce 1 large egg cell.
Explanation:
Meiosis produces gametes (sex cells). Sex cells are eggs in females and sperm in males.
In the female, ovaries produce four haploids (3 polar bodies and 1 immature egg) under meiotic division. Polar bodies die because of the unequal division of cytoplasm. The immature egg matures into a large ovum/egg every 28 days during the menstrual cycle that is able to fertilize.
In the male, meiosis occurs in testes that produce 4 spermatids that mature into 4 small sperms. Testes produce several hundred million sperms every day under meiosis. These sperms are able to fertilize.
Nevertheless, if we want to compare their numbers based on meiotic division, we would say that they will be in the same ratio (1:1) at the end of each meiosis cycle for males and females.
the most recent year for which we have statistics available, 157,423people -- 86,689 men and 70,734women -- died from lung cancer in the U.S.
