AP Biology - Unit 3 Review

Front

What are anabolic reactions?

Back

Anabolic reactions are nonspontaneous processes that build larger molecules from smaller ones, requiring an input of energy.

Front

What is the role of malonic acid with respect to succinate dehydrogenase?

Back

Malonic acid is a competitive inhibitor of succinate dehydrogenase, resembling succinate but unable to be acted upon by the enzyme.

Front

What do endergonic reactions require?

Back

Endergonic reactions require an input of energy to proceed.

Front

How do plants obtain CO2 into the chloroplast?

Back

Plants obtain CO2 into the chloroplast by diffusion.

Front

What is chemiosmosis?

Back

Chemiosmosis is the use of a proton gradient to power ATP Synthase and produce ATP.

Front

Define competitive inhibition.

Back

Competitive inhibition occurs when a substance resembles the substrate and competes for binding to the active site of an enzyme.

Front

What is the difference between anabolic and catabolic reactions?

Back

Anabolic reactions build molecules and require energy, while catabolic reactions break down molecules and release energy.

Front

What is ATP Synthase?

Back

ATP Synthase is an enzyme that combines ADP and inorganic phosphate to produce ATP, powered by a proton gradient.

Front

What is the significance of a proton gradient in cellular respiration?

Back

A proton gradient is crucial for ATP production during chemiosmosis, as it drives the synthesis of ATP by ATP Synthase.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a cell membrane via specific transmembrane proteins.