AP Biology Unit 3 Review Flashcardizz

Front

What is the pathway of electrons in the light reactions of photosynthesis?

Back

H2O → PSII → ETC → PSI → NADPH

Front

Which phase of photosynthesis produces organic sugars?

Back

The Calvin cycle

Front

How does a competitive inhibitor affect an enzyme's function?

Back

It binds to the active site, preventing the enzyme from catalyzing the reaction.

Front

Why is the hydrolysis of ATP important to a cell's function?

Back

It releases energy that can be used to power cellular processes.

Front

What must occur to maintain order and power cellular processes?

Back

Energy input must exceed energy loss.

Front

What is the role of PSII in photosynthesis?

Back

PSII captures light energy to split water molecules, releasing oxygen and providing electrons.

Front

What is the function of the electron transport chain (ETC) in photosynthesis?

Back

The ETC transfers electrons from PSII to PSI, creating a proton gradient that drives ATP synthesis.

Front

What is the significance of NADPH in photosynthesis?

Back

NADPH provides reducing power for the Calvin cycle to convert carbon dioxide into glucose.

Front

What is the main product of the Calvin cycle?

Back

The main product is glucose, which is used as an energy source by the plant.

Front

What is an allosteric site on an enzyme?

Back

An allosteric site is a location on the enzyme where a molecule can bind, causing a change in enzyme activity.