BIOL 1260 Exam I

in which steps of cellular respiration does substrate-level phosphorylation occur?

• glycolysis and pyruvate processing

• glycolysis and the citric acid cycle

• pyruvate processing and the ETC

• the citric acid cycle and pyruvate processing

in a polar covalent bond, the electrons are shared _______

• unequally, creating hydrogen bond

• unequally, creating a partial charge distribution

• equally, creating a partial charge distribution

• equally, creating a hydrogen bond

in aqueous environments, _________ bonds are the strongest

• ionic

• hydrogen

• nonpolar covalent

• polar covalent

glycolysis is an anaerobic process that occurs in ______

• mitochondrial matrix

• thylakoid membrane

• mitochondrial membrane

• cytosol

how many NADH molecules are produced from glycolysis?

• 2

• 4

• 1

• 3

when water sticks to the side of a glass, which of its properties is being used?

• adhesion

• cohesion

• polarity

• heat capacity

name this concept:

the movement of water from an area of high solute concentration to an area of low solute concentration

• diffusion

• passive transport

• osmosis

• chemiosmosis

A cell is placed in a hypertonic solution. The solution has a ________ concentration of solutes than the cell's cytoplasm, and as a result, water will move _________ the cell.

• higher; into

• higher; out of

• lower; into

• lower; out of

________ proteins undergo a conformational change to passively transport a bound molecule across a membrane

• channel

• carrier

• corridor

• pump

remember cystic fibrosis:

what is the normal function of the CFTR protein?

• pump chloride ions out of mucus secretions

• pump hydrogen ions into mucus secretions

• pump chloride ions into mucus secretions

• pump hydrogen ions out of mucus secretions