IV
Answer the following in one sentence.
1. What is the function of root hairs?
2. Why is chlorophyll essential for the plant?
3. How many types of venations do plants have?
4. How is xylem different from phloem?
5. In which part of a flower are pollen grains produced?
Answer the following questions in two sentences.
1. Why do trees have bark?
2.
What are the modifications of roots? Give examples.
3. What are the functions of the shoot?
4. Why do cactus plants have spines?
5. What are non-flowering plants?
Answer the following questions in about four to five sentences.
1. How do plants prepare food?
2. Explain transpiration in plants with an experiment.
3. Draw a well-labelled diagram of a flower.
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Answer:
1 The function of root hairs is to collect water and mineral nutrients that are present in the soil and take this solution up through the roots to the rest of the plant. As root hair cells do not carry out photosynthesis they do not contain chloroplasts.
2 The role of chlorophyll in photosynthesis is vital. Chlorophyll, which resides in the chloroplasts of plants, is the green pigment that is necessary in order for plants to convert carbon dioxide and water, using sunlight, into oxygen and glucose
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Answer:
Q2)chlorophyll helps plant to prepare food and helps it get its green pigment
Explanation:
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