Answer:
(a) an aquaporin
Explanation:
An aquaporin is a water channel which forms a pore in the cell membrane and facilitates the movement of water. Aquaporin is an integral membrane protein (permanently attached to the membrane) that enables the in and out flow of the water. This channel also prevents the passage of ions and other solutes, so it cannot change the voltage. There are four types of aquaporins, and they are mostly found in the kidney with the function of water reabsorption.
Page 1:
1. 4th option
2.the 3rd option
3.the 1st option
4. the 2nd option (i think)
5. 3rd option
page 2:
1. 3rd option i think
2.3rd option
3.2nd option
4.2nd option
5.3rd option (i think)
Answer:
C
Explanation:
The crayfish is a relatively large specimen, even the mouthparts. Since you are dissecting the mouthparts, you need a 3D view: you should use the dissecting microscope.
Explanation:
obtain energy from chemotrops. "chemo" means chemical or unnatural therapy..
<span>The answer is A. This is because the P53 gene is involved in a cell cycle regulation and is thought to hold the cell in a particular phase until DNA defects are repaired. </span>
