Biology 110 Exam 2 Questions with
Correct Answers
Substances move through biological membranes against the concentration gradient via
- ANSWERSactive transport
If a cell placed in a solution shrinks, the solution is ______ relative to the cell. -
ANSWERShypertonic
Which of the following molecules will most likely diffuse across the membrane? -
ANSWERSA Steroid
For each molecule of ATP consumed during active transport of sodium and potassium,
one K+ is imported and three Na+ are exported. T or F? - ANSWERSFalse
Transport proteins that simultaneously move two molecules across a membrane in the
same direction are called - ANSWERSSymports
Cells can create energy. T or F? - ANSWERSFalse
For a reaction to be spontaneous, the change in free energy of the reaction, ΔG, must
be _________. - ANSWERSNegative
During photosynthesis, plants convert light energy to chemical energy. This is an
example of - ANSWERSThe first law of thermodynamics
The molecules that are acted on by an enzyme are called - ANSWERSSubstrates
When ATP loses a phosphate to form ADP, - ANSWERSfree energy is released by the
loss of a phosphate
The enzyme sucrase increases the rate at which sucrose is broken down into glucose
and fructose. Sucrase works by supplying energy to speed the reaction. T or F? -
ANSWERSFalse
Oxidation and ________ occur together. - ANSWERSreduction
The pathway for the oxidation of glucose to pyruvate is called ____. -
ANSWERSGlycolysis
Correct Answers
Substances move through biological membranes against the concentration gradient via
- ANSWERSactive transport
If a cell placed in a solution shrinks, the solution is ______ relative to the cell. -
ANSWERShypertonic
Which of the following molecules will most likely diffuse across the membrane? -
ANSWERSA Steroid
For each molecule of ATP consumed during active transport of sodium and potassium,
one K+ is imported and three Na+ are exported. T or F? - ANSWERSFalse
Transport proteins that simultaneously move two molecules across a membrane in the
same direction are called - ANSWERSSymports
Cells can create energy. T or F? - ANSWERSFalse
For a reaction to be spontaneous, the change in free energy of the reaction, ΔG, must
be _________. - ANSWERSNegative
During photosynthesis, plants convert light energy to chemical energy. This is an
example of - ANSWERSThe first law of thermodynamics
The molecules that are acted on by an enzyme are called - ANSWERSSubstrates
When ATP loses a phosphate to form ADP, - ANSWERSfree energy is released by the
loss of a phosphate
The enzyme sucrase increases the rate at which sucrose is broken down into glucose
and fructose. Sucrase works by supplying energy to speed the reaction. T or F? -
ANSWERSFalse
Oxidation and ________ occur together. - ANSWERSreduction
The pathway for the oxidation of glucose to pyruvate is called ____. -
ANSWERSGlycolysis
