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WorksheetsS1 Biology - Photosynthesis
Total questions: 12
Worksheet time: 7mins
What pigment is responsible for absorbing light energy?
Chlorophyll
Carotene
Xanthophyll
Melanin
Where does photosynthesis occur in plant cells?
Nucleus
Mitochondria
Chloroplast
Ribosome
Which of the following factors affects the rate of photosynthesis?
Temperature
Light intensity
Carbon dioxide concentration
All of the above
What happens when light intensity is increased during photosynthesis?
The rate decreases
The rate increases
There is no change
Oxygen production decreases
What is the effect of high carbon dioxide concentrations on photosynthesis?
It slows down the process
It increases the rate
It has no effect
It stops the process
How is the rate of photosynthesis typically measured?
By measuring glucose production
By measuring oxygen production
By measuring temperature change
By counting the number of leaves
What do plants take in through their leaves?
Minerals
Light
Gases
Water
What do plants take in through their roots?
Minerals
Light
Gases
Water
Why is photosynthesis important for life on Earth?
It provides oxygen
It produces glucose for energy
It helps regulate temperature
All of the above
Identify the reactants of photosynthesis.
Oxygen
Glucose
Carbon Dioxide
Water
How does deforestation affect the rate of photosynthesis on Earth? a) It increases the rate b) It decreases the rate c) It has no effect d) It causes a sudden change in temperature
It increases the rate
It decreases the rate
It has no effect
It causes a sudden change in temperature
What would happen if plants were unable to carry out photosynthesis?
They would die
Animals would no longer be able to breathe
The carbon cycle would be disrupted
All of the above
