Answer:
Facilitated diffusion in a cell has a limited amount of carrier and channel proteins, wherein if all are being used or saturated, can't transport the substances outside in to the cell, leading to the plateau of the substance.
Explanation:
In <u>low concentrations</u> of the substance outside the cell, <u>facilitated diffusion behaves like simple diffusion</u>, carriers and channels are not all used up. But in instances of <u>high concentration of the substance</u> outside the cell, <u>all the carrier and channel proteins are occupied</u> with the said substance. So <u>even if we increase the concentration of the substance, it will not increase the rate of diffusion.</u>
Answer:
Cobalt Co
Explanation:
Co and Zn can fully replace each other, except perhaps for small individual requirements that are met by minute metal concentrations supplied as contaminants.
Answer:
Explanation:
what are you talking about?
Answer:
- Beneficial traits are selected based on the environment.
Explanation:
<em>The Bloodhound dog breed was bred in the middle ages for an excellent sense of smell to be used for hunting.</em>
The answer is D,
<span>A. do not want the genes to become worn out.
B. cannot control the translation of proteins.
C. do not carry the complete genetic code in their nuclei.
D. do not need the proteins that are specified by certain genes.
Have a wonderful day! :D</span>
