IB Biology Photosynthesis

Front

What is the role of ATP synthase in photosynthesis?

Back

ATP synthase creates ATP during chemiosmosis.

Front

Why is photosynthesis essential to life on Earth?

Back

Photosynthesis converts unusable radiant energy into usable chemical energy.

Front

What molecule does carbon combine with when it first enters the Calvin cycle?

Back

Carbon combines with RuBP (Ribulose bisphosphate).

Front

What is the primary function of the light reactions of photosynthesis?

Back

The primary function is to produce NADPH and ATP.

Front

What type of organisms are capable of conducting photosynthesis?

Back

Autotrophs are the organisms that conduct photosynthesis.

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose.

Front

What are the two main stages of photosynthesis?

Back

The two main stages are the light-dependent reactions and the light-independent reactions (Calvin cycle).

Front

What is the significance of chlorophyll in photosynthesis?

Back

Chlorophyll is the pigment that absorbs light energy, primarily in the blue and red wavelengths, and is essential for the light reactions.

Front

What is the main product of the Calvin cycle?

Back

The main product of the Calvin cycle is G3P (glyceraldehyde-3-phosphate), which can be converted into glucose.

Front

What is the equation for photosynthesis?

Back

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