1.5 Plants and photosynthesis

Practice questions on Plants and photosynthesis

• Explain why plants need both stomata and a waxy cuticle on their leaves. (4 marks, Explain)
• Explain how the structure of a leaf is adapted to allow efficient photosynthesis. (4 marks, Explain)
• Explain why the leaves of most plants are broad and flat. (4 marks, Explain)
• Describe the role of the xylem and phloem in a plant. (4 marks, Describe)
• Describe how the rate of photosynthesis in a plant would change if carbon dioxide concentr… (4 marks, Describe)
• Explain why a plant kept in a dark cupboard for several days will eventually die. (4 marks, Explain)
• Explain why water moves from the soil into a root hair cell and then continues to move up … (4 marks, Explain)
• A student places a green plant on a windowsill in sunlight. After several hours, small bub… (4 marks, Explain)
• A farmer grows crops in a greenhouse. During winter, the farmer uses a gas heater inside t… (4 marks, Explain)
• Explain why root hair cells are well adapted for absorbing water and mineral ions from the… (4 marks, Explain)