GCSE Photosynthesis

What is the word equation for photosynthesis?

• Water + Carbon dioxide -> Glucose + Oxygen
• Water + Carbon monoxide -> Glucose + Oxygen

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NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which of the following are reactants in photosynthesis?

• Carbon dioxide
• Water
• Oxygen
• Glucose

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NGSS.MS-LS1-6

Which of the following are products in photosynthesis?

• Carbon dioxide
• Water
• Oxygen
• Glucose

What absorbs the energy required by photosynthesis?

• Chlorophyl found in chloroplasts
• Glucose found in permanent vacuole
• Cellulose found in cell wall
• Xylem fround in vascular bundle

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NGSS.HS-LS1-5

How does temperature affect photosynthesis?

• The rate of photosynthesis increases with temperature up to an optimum point. Beyond that, enzyme activity decreases, affecting the process. Extremely high temperatures can lead to enzyme denaturation
• The rate of photosynthesis decreases with temperature up to an optimum point. Beyond that, enzyme activity decreases, affecting the process. Extremely high temperatures can lead to enzyme denaturation

What is required to produce amino acids from glucose?

• Nitrates taken from the soil through the roots.
• Nitrates taken from the air through the stomata

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NGSS.HS-LS1-6

Name THREE ways plants use glucose.

• For respiration (to release energy).
• To make cellulose for plant cell walls.
• To create amino acids from nitrates (for protein synthesis).
• Stored as insoluble glycogen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

What THREE factors affect the rate of photosynthesis?

• Light intensity
• Carbon dioxide
• Temperature
• Water availability

Tags

NGSS.MS-LS1-6

Why can chlorophyll also be a limiting factor?

• Factors like disease or nutrient deficiencies can damage chloroplasts or reduce chlorophyll production, affecting photosynthesis.
• Factors like disease or nutrient deficiencies can damage mitochondria or reduce chlorophyll production, affecting photosynthesis.

What is photosynthesis?

• Photosynthesis is the process by which green plants and algae convert light energy into chemical energy in the form of glucose, using carbon dioxide and water. Oxygen is also produced as a byproduct.
• Photosynthesis is the process by which green plants and algae convert light energy into chemical energy in the form of glucose, using oxygen and water. Carbon dioxide is also produced as a byproduct.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5