Facilitated diffusion.
A protein channel is used to allow larger or charged molecules to enter/leave the cell.
The products of photosynthesis are sugar molecules (glucose) and oxygen. <span>Photosynthesis is the process in which light energy is converted to chemical energy. In this process, water and carbon dioxide combined with light energy produce glucose molecules (or other sugars) and oxygen is released as a byproduct. The glucose molecules provide organisms with two crucial resources: energy (glucose contains chemical energy) and fixed organic carbon atom. The energy of glucose is used in the process called cellular respiration where adenosine triphosphate-ATP is generated.</span>
Answer:
b. skin from mouse 2
Explanation:
According to this question, a mice skin transplant is being conducted. Four mice labelled Mouse 1, Mouse 2, Mouse 3 and Mouse 4 are used for this experiment. A small patch of skin from mouse 2 (the donor) was transplanted onto mouse 1 (the recipient), however, it was eventually rejected by the recipient (mouse 1).
This transplant rejection is due to the fact that the recipient's immune system identifies the tansplanted skin as foreign, hence, begins to attack it, leading to the skin's necrosis or death. Based on this, the same transplant rejection will occur if skin patches from mouse 3 and 4 are used.
However, the immune system of mouse 1, which is the recipient, will identify skin patches from MOUSE 2 as less foreign than any other skin from other mice. This is because skin from that mouse has been used before, hence, the recipient's immune recognizes it when a follow-up transplant is conducted. This makes a follow-up transplant from MOUSE 2 be the least likely to be rejected.
