Answer:
The correct option is b. "IEC Na+/glucose symporters are found only in the plasma membrane (PM) facing the basal extracellular fluid"
Explanation:
The glucose in the intestine is a product of digestion and needs to be absorbed into the blood so it can be transported to where needed. Glucose moves out of the IEC with the combined action of sodium ions. The sodium-glucose symporter opens and allows for this pair to move out only when one of each is attached to the symporter. The movement of glucose is regulated in this way.
Nitrogen fixation is the conversion of nitrogen gas into a usable form.
option B:is correct answer
may be this helpful!
Answer:
The function of DNA is tied to its structure. ... The sugars and phosphates link the nucleotides together to form each strand of DNA. When two strands of DNA come together, base pairs form between the nucleotides of each strand. Nitrogenous bases pair together in the following way: A-T and C-G.
Answer:
Explanation:
See the illustration below:
APOENZYME + COFACTOR/COENZYME = HOLOENZYME
Note: All known enzymes are proteins
Apoenzyme is the protein portion of the enzyme.
COFACTOR is the added portion to make a BIOLOGICALLY ACTIVE enzyme known as Holoenzyme.
