Photosynthesis

Front

What is 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, using carbon dioxide and water.

Front

Where does the light-dependent reaction of photosynthesis occur?

Back

The light-dependent reactions occur in the thylakoid membranes of the chloroplasts.

Front

What is the main purpose of the light-dependent reactions?

Back

The main purpose of the light-dependent reactions is to convert light energy into chemical energy in the form of ATP and NADPH.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a pigment that absorbs light energy, primarily in the red and blue wavelengths, which is essential for the photosynthesis process.

Front

What are the products of the light-dependent reactions?

Back

The products of the light-dependent reactions are ATP, NADPH, and oxygen.

Front

What is the stroma in a chloroplast?

Back

The stroma is the fluid-filled space surrounding the thylakoids in chloroplasts where the light-independent reactions (Calvin cycle) take place.

Front

What is RuBisCo?

Back

RuBisCo (Ribulose Bisphosphate Carboxylase) is an enzyme that catalyzes the first step of carbon fixation in the Calvin cycle.

Front

What are grana in chloroplasts?

Back

Grana are stacks of thylakoids within the chloroplasts where the light-dependent reactions of photosynthesis occur.

Front

What is the Calvin cycle?

Back

The Calvin cycle is a series of biochemical reactions that take place in the stroma of chloroplasts, converting carbon dioxide into glucose using ATP and NADPH.

Front

What is the significance of ATP in photosynthesis?

Back

ATP (adenosine triphosphate) is the energy currency of the cell, providing the energy needed for various biochemical reactions, including those in the Calvin cycle.