Plant Physiology
Biology ⇒ Plant Biology
Plant Physiology starts at 9 and continues till grade 12.
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See sample questions for grade 10
A plant is placed in a sealed container with only sunlight and water provided. After several hours, the oxygen level in the container increases. What process is responsible for this change?
Calculate the number of glucose molecules produced if 12 molecules of carbon dioxide are used in photosynthesis.
Define transpiration.
Describe the process of phototropism in plants.
Describe the role of minerals in plant physiology.
Describe the role of stomata in plant physiology.
Explain the difference between diffusion and osmosis in plant physiology.
Explain the importance of transpiration in plants.
Explain why wilting occurs in plants.
Name the pigment responsible for absorbing light energy during photosynthesis.
What is the function of the spongy mesophyll in a leaf?
What is the main function of root hairs?
What is the main function of the cuticle in leaves?
What is the role of xylem in plants?
Which process in plants is responsible for the absorption of water from the soil?
A plant is exposed to green light only. Predict and explain the effect on its rate of photosynthesis.
A scientist measures the rate of transpiration in two identical plants. One plant is placed in a humid environment, and the other in a dry environment. Predict which plant will have a higher rate of transpiration and explain why.
Describe the process of pressure-flow hypothesis in phloem translocation.
Explain how the cohesion-tension theory accounts for the movement of water from roots to leaves in tall trees.
Explain why C4 plants are more efficient than C3 plants in hot, dry climates.
