AP Bio Semester 1 Final

Which of the following best summarizes the relationship between dehydration reactions and hydrolysis?

• Hydrolysis only occurs in the urinary system, and dehydration reactions only occur in the digestive tract.
• Hydrolysis creates monomers, and dehydration reactions break down polymers.
• Dehydration reactions can occur only after hydrolysis.
• Dehydration reactions assemble polymers, and hydrolysis breaks down polymers.

This is a picture of a?

• Amino Acid
• Nucleic Acid
• Lipid
• Polysaccharide

During respiration, most ATP is formed as a direct result of the net movement of

• potassium against a concentration gradient

• protons down a concentration gradient

• electrons against a concentration gradient

• electrons through a channel

• sodium ions into the cell

What macromolecule makes up the cell membrane's lining?

• Saturated Fatty acid chains
• Phospholipids
• Polypeptide chains
• Cellulose polysaccharide Chains

The property of water that allows water molecules to stick to another substance is

• adhesion
• cohesion
• density
• specific heat

The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form

• less polar
• more polar
• less dense
• more dense

Which of the following is correctly defined as the attraction of the hydrogen from one molecule to the oxygen of a different molecule?

• amphipathic
• hydrophobic
• hydrogen bonding
• adhesion

The chain of amino acids folds and coils on itself

• Primary

• Secondary

• Tertiary

• Quaternary

Which way would the purple molecules move through the semi-permeable membrane?

• From the  A side  to the B-side

• From the B side to the A side

• none of the purple molecules would move

• they would move equally back and forth in a state of dynamic equilibrium

Osmosis is the diffusion of _____ across a membrane

• glucose
• NaCl
• proteins
• water