NET Applied Sciences MCQs

Different genes are expressed in different cell types.
This creates specialized structures and functions.

As a cell grows, volume increases faster than surface area.
Small size improves transport of nutrients, gases, and wastes.

The four major macromolecule groups perform structural, energetic, catalytic, and informational roles.
They are built mainly from carbon-containing compounds.

Monomers link through covalent bonds.
Examples include amino acids, nucleotides, and monosaccharides.

Dehydration reactions join monomers into larger molecules.
A water molecule is released during bond formation.

Hydrolysis separates polymers into smaller units.
Water contributes H and OH to the products.

Carbohydrates include sugars, starches, glycogen, and cellulose.
They serve both energy and structural roles.

Monosaccharides are the simplest carbohydrates.
Glucose, fructose, and galactose are examples.

Glucose is oxidized during cellular respiration.
Its energy is transferred to ATP.

Prokaryotes lack a membrane-bound nucleus.
Their DNA is located in a nucleoid region.

Cellulose microfibrils provide strength to plant cell walls.
The wall supports and protects the cell.

Water moves out toward the higher solute concentration.
The cell undergoes crenation.