As the size of a cell increases
a. its metabolic demands increase.
b. it's surface area-to-volume ratio decreases.
c. its ability to transport enough nutrients in and transport wastes out to meet cellular metabolic demands decreases.
d. its surface area to volume ratio increases

The correct answers are-

a. Its metabolic demands increase.

b. It's surface area-to-volume ratio decreases.

c. Its ability to transport enough nutrients in and transport wastes out to meet cellular metabolic demands decreases.

Explanation:

As the size of a cell increases the surface area to volume ratio decrease. So a big cell has less surface area and small volume. Therefore surface area for transfer of metabolic substance per unit volume decreases so the cell's ability to transport enough nutrients in and transport wastes out to meet cellular metabolic demands also decreases.

But due to an increase in the volume of the cell the metabolic demand of cell increases because a larger cell requires more nutrients than a smaller cell to survive which can not be fulfilled efficiently due to less surface-area-to-volume ratio.

Therefore the correct answer is a, b, and c.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

the answer is trees if i'm not mistaken