Second Six Weeks Test Review

The monomers of carbohydrates are

• trisaccharides

• fatty acids

• nucleic acids

• monosaccharides

Starch is a _______________. Choose all that apply.

• polysaccharide

• carbohydrate

• lipid

• chitin

When the concentration of molecules on both sides of a membrane is the same, or istononic, the molecules will

• move across the membrane to the inside of the cell.

• stop moving across the membrane.

• move across the membrane in both directions equally.

• move across the membrane to the outside of the cell.

Which type of transport requires energy from the cell?

• active

• passive

• osmosis

• diffusion

A virus' protein coat is called

• capsid

• envelope

• exoskeleton

• poly coat

A protein is synthesized from many

• amino acids

• fatty acids

• nucleic acids

• monosaccharides

Large food molecules need to be broken down into smaller molecules that can be absorbed and transported. What is the role of enzymes in this digestive process?

• They produce glucose that provides energy.

• They are converted into carbohydrates.

• They speed up the breakdown process.

• They remove the undigested food molecules.

What holds amino acids together within a protein or polypeptide chain?

• hydrogen bonds

• ionic bonds

• double covalent bonds

• peptide bonds

What two biomolecules provide energy for the cell

• lipids

• carbohydrates

• nucleic acids

• proteins

The diffusion of water across a selectively permeable membrane is called

• osmosis

• facilitated diffusion

• turgor pressure

• active transport