GCSE Biology - Photosynthesis #48

The video explains photosynthesis, a process occurring in plant leaves where chlorophyll absorbs light energy to convert carbon dioxide and water into glucose and oxygen. The chemical equation is detailed, highlighting its endothermic nature. The video recaps how plants obtain reactants and emphasizes glucose's importance, outlining its five main uses: respiration, cellulose, starch, amino acids, and oils. Finally, it introduces factors affecting photosynthesis rates, such as light intensity, temperature, carbon dioxide concentration, and chlorophyll amount.

What is the primary role of chlorophyll in photosynthesis?

• To produce carbon dioxide

• To absorb light energy

• To absorb water

• To release oxygen

Which of the following is a reactant in the photosynthesis process?

• Carbon dioxide

• Chlorophyll

• Oxygen

• Glucose

What is the main product that plants aim to produce through photosynthesis?

• Oxygen

• Carbon dioxide

• Water

• Glucose

Which of the following is NOT a use of glucose in plants?

• Generating chlorophyll

• Making cellulose

• Forming amino acids

• Producing starch

What factor does NOT affect the rate of photosynthesis?

• Temperature

• Soil type

• Carbon dioxide concentration

• Light intensity