Internal parts of a leaf practice exercise 3

Plants in Wajir survive dry weather and still make food. Explain how the internal structure of their leaves helps them make food while saving water.  (3 marks)

In a school farm in Kisumu, students notice that the inside of a leaf has spaces. These spaces are part of the spongy mesophyll. Explain how the spongy mesophyll helps the plant to make food. (2 marks)

Imagine a bean leaf as a food-making factory. Describe how the parts inside the leaf like palisade cells, stomata, and chloroplasts work together to help the plant make food. (3 marks)

Explain how the cuticle, even though it does not make food, supports the process of photosynthesis in plants such as sugarcane. (2 marks)

Explain how the cuticle, even though it does not make food, supports the process of photosynthesis in plants such as sugarcane. (2 marks)

Describe how the palisade mesophyll, chloroplast, and stomata help a maize plant in Eldoret to make its own food. (3 marks)

Below is a table showing functions of different parts found inside a leaf. Each part is labelled A, B, C, or D. Identify the correct name of each part. (4 marks) Label Function of the Part A Traps sunlight to help the plant make food B Has many chloroplasts and is the main site for photosynthesis C Has air spaces to allow movement of gases D Allows gases to enter and leave the leaf

In a sunflower leaf, the upper side faces the sun most of the day. Explain how the upper epidermis helps the leaf carry out photosynthesis. (2 marks)

Use the diagram of the leaf cross-section below to explain what happens inside the leaf when a plant is making food. (4 marks)

Use the diagram of the leaf cross-section below to explain what happens inside the leaf when a plant is making food. (4 marks)

When it is hot in Murang'a, a mango tree still makes food. Explain how the small holes on the leaf called stomata help the mango tree to make food even in hot weather. (1 mark)

Your school garden has spinach plants. What is the name of the green part inside the spinach leaf that traps sunlight to make food? (1 mark)