Chapter 7 Social Problems

A set of flashcards summarizing key concepts of photosynthesis for exam preparation.

What is the main purpose of photosynthesis?

To convert light energy into chemical energy stored in glucose.

What are the two main stages of photosynthesis?

Light-dependent reactions and Calvin cycle (light-independent reactions).

During which part of photosynthesis is oxygen produced?

In the light-dependent reactions.

What is the primary pigment involved in photosynthesis?

Chlorophyll.

What are the reactants of photosynthesis?

Carbon dioxide (CO2) and water (H2O).

What is the main product of photosynthesis?

Glucose (C6H12O6).

What is the chemical equation for photosynthesis?

6CO2 + 6H2O + light energy → C6H12O6 + 6O2.

Where does the Calvin cycle occur?

In the stroma of chloroplasts.

What role do NADP+ and ATP play in photosynthesis?

They act as energy carriers.

What is the importance of the light-dependent reactions?

They capture energy from sunlight and produce ATP and NADPH.

What is the role of ribulose bisphosphate (RuBP) in photosynthesis?

It acts as the carbon dioxide acceptor in the Calvin cycle.

How does carbon fixation occur in the Calvin cycle?

Through the reaction of CO2 with RuBP, catalyzed by the enzyme Rubisco.

What is photolysis in the context of photosynthesis?

The splitting of water molecules to release oxygen.

Which organisms are primarily responsible for photosynthesis on Earth?

Plants, algae, and some bacteria.

What environmental factors can affect the rate of photosynthesis?

Light intensity, carbon dioxide concentration, and temperature.

What is the significance of photosynthesis to life on Earth?

It produces oxygen and organic compounds, forming the basis of the food chain.