C. in special waste containers provided
Answer:
Option A (Macromolecules)
Explanation:
Nucleic acid and carbohydrates are both types of organic molecules known as macromolecules.
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Answer:
C. The basic effect of the cholera toxin is signal amplification.
Explanation:
Cholera toxin can cause its symptoms by amplifying the signals responsible for intestinal electrolyte transport through the following process:
The toxin binds to a membrane ganglioside (a phospholipid with carbohydrate residues) in the secretory cells in the small intestine. After that, a toxin subunit penetrates the cell, causing permanent activation of a G protein.
G protein activates adenylate cyclase, which catalyzes the formation of cAMP (A type of secondary messenger, important in signal transduction in cells), responsible for activating protein kinases.
Proteins undergo phosphorylation, this process amplifies chloride ions (Cl⁻) secretion.
The flow of negatively charged chloride ions out of the cell causes positively charged sodium ions to follow them in the flow.
Then water follows the electrolytes to the lumen of the small intestine by osmosis, resulting in severe diarrhea.
A gas called Ethylene which is given off by the already ripened fruit speeds the process of ripening for the unripened fruit.
3. is it would spin so fast around the earth that it would make 1 full rotation suck the Earth in.