Metabolism, Cellular Respiration, & Photosynthesis

Which of the following means to break down molecules?

• anabolic

• catabolic

• metabolism

• none of these

Enzymes speed up reactions by lowering what?

• catalyst

• temperature

• activation energy

• free energy

A competitive inhibitor binds at the _____ site.

• active

• allosteric

Approximately how many molecules of ATP are produced from the complete oxidation of one molecule of glucose (C₆H₁₂O₆) in aerobic cellular respiration?

• 30-32

• 18-24

• 2

• 4

Which of the following metabolic processes normally occurs regardless of whether or not oxygen is present?

• glycolysis

• oxidative phosphorylation

• lactate fermentation

• citric acid cycle

Which yields the most ATP?

• glycolysis

• citric acid cycle

• electron transport chain

• chemiosmosis

What are the gas exchange holes on the bottom side of leaves called?

• grana

• mesophyll

• stomata

• stroma

Plants are green because they ________ green light.

• absorb

• reflect

Which happens first?

• Calvin Cycle

• Photosystem I

• Photosystem II

• Electron transport chain

What type of plant are most trees?

• C3

• C4

• CAM