Unit 4 Review in AP BIOLOGY

Which of the following is the benefit of regulating glycolysis by the concentration of ATP?

• Glycolysis is inhibited when the intracellular concentration of ATP is high because ATP will compete with another molecule for binding to the active site on the enzyme.

• Glycolysis proceeds when the intracellular concentration of ATP is low, which drives ATP for cellular reactions.

• Glycolysis is inhibited when the intracellular concentration of ATP is high because ATP will be used for future processes.

• Glycolysis proceeds when the intracellular concentration of ATP is low because ATP is needed to catalyze reactions.

Which of the following does not affect the rate of transpiration?

• Placing the plant in total darkness

• Increasing the water potential of the soil

• Causing the stomata to close

• Increasing the water potential of the atmosphere

What will happen if an IV solution containing distilled water is administered to a patient?

• The cells that are exposed to a hypotonic solution will swell as water moves into cells from the blood.

• The cells that are exposed to a hypotonic solution will shrink as a result of salt moving into the blood.

• The cells that are exposed to a hypertonic solution will swell as water moves into cells from the blood.

• The cells that are exposed to a hypertonic solution will shrink as water moves into cells from the blood.

Tags

NGSS.HS-LS1-3

Which of the following is TRUE about photosynthesis?

• During the Calvin cycle of photosynthesis, water is split, the hydrogen atoms are added to sugars, and oxygen gas is released.

• During the Calvin cycle of photosynthesis, water is split, regenerating NADPH and NADP+, and oxygen gas is released.

• During light reactions of photosynthesis, water is split, the hydrogen atoms combine with the carbon dioxide, and oxygen gas is released.

• During light reactions of photosynthesis, water is split, removing electrons and protons, and oxygen gas is released.

Tags

NGSS.HS-LS1-5

Which is an electron acceptor for oxidations that occur in both glycolysis and Krebs cycle reactions?

• Oxygen

• Carbon dioxide

• NAD+

• FADH2

Which of the following molecules bind to the enzyme decreasing its activity?

• Activator

• Coenzyme

• Cofactor

• Inhibitor

Which of the following is NOT part of light reactions of photosynthesis?

• Carbon dioxide is incorporated into organic molecules.

• Oxygen is produced.

• NADP+ is reduced to NADPH.

• ADP is phosphorylated to yield ATP.

Tags

NGSS.HS-LS1-5

What will happen to the dialysis bag over time?

• Water will increase in the dialysis bag as it moves from high to low water concentration. Starch will increase and glucose will remain the same.

• Water will increase in the dialysis bag as it moves from low to high concentration. Starch will decrease and glucose will remain the same.

• Water will decrease in the dialysis bag as it moves from low to high concentration. Starch will increase and glucose will remain the same.

• Water will increase in the dialysis bag as it moves from high to low water concentration. Starch will remain the same and glucose will decrease.

If ATP breakdown is inhibited, what will happen to other cell processes?

• Passage of solute against the concentration gradient will be affected too.

• Movement of water through aquaporins is affected too.

• There is no movement of oxygen into the cell.

• Diffusion of other molecules through a membrane is limited.

Tags

NGSS.HS-LS2-3

How does light-dependent reaction differ from light-independent reactions?

• The light-dependent reactions occur int he cytoplasm while the light-independent reactions occur in the mitochondria.

• The light-dependent reactions produce ATP and NADPH while the light-independent reactions use produce carbon dioxide and water.

• The light-dependent reactions produce ATP and NADPH while the light-independent reactions use energy stored in ATP and NADPH.

• The light-dependent reactions occur only during the day while the light-independent reactions occur only at night.

Tags

NGSS.HS-LS1-5