1.5 Plants and photosynthesis

Practice questions on Plants and photosynthesis

• Describe how the rate of photosynthesis in a plant is affected when the concentration of c… (4 marks, Describe)
• Explain how guard cells control the opening and closing of stomata in a plant leaf. (4 marks, Explain)
• Explain how the structure of a leaf is adapted to allow efficient photosynthesis. (4 marks, Explain)
• Describe how water moves from the soil into a plant and up to the leaves. (4 marks, Describe)
• Explain why plants need both xylem and phloem vessels, referring to the substances transpo… (4 marks, Explain)
• Explain how the structure of a xylem vessel is adapted for its function of transporting wa… (4 marks, Explain)
• Explain why a plant kept in a dark cupboard for several days will eventually die. (4 marks, Explain)
• Explain why leaves are well adapted for photosynthesis to occur efficiently. (4 marks, Explain)
• A student places a green plant in a windowsill on a sunny day. After several hours, small … (4 marks, Explain)
• Explain why plants need both light and chlorophyll to carry out photosynthesis. (4 marks, Explain)