Question 7: Name the following:
Answer: (a) Amarbel (cuscuta) is a parasitic plant. It has yellow, slender and tubular stem. It lives on large trees.
(b) Pitcher plant is autotrophic but it needs to get nitrogen from insects. That is why pitcher plant traps insects to suck their juice.
(c) Stomata are tiny pores on the surface of leaves. Exchange of gases takes place through stomata.
Question 8: Tick the correct answer:
(a) Amarbel is an example of:
Answer: (ii) Parasite
(b) The plant which traps and feeds on insects is:
Answer: (iii) Pitcher plant
Question 9: Match the items given in Column I with those in Column II:
|Column I||Column II|
|(1) Chlorophyll||(a) Bacteria|
|(2) Nitrogen||(b) Heterotrophs|
|(3) Amarbel||(c) Pitcher plant|
|(4) Animals||(d) Leaf|
|(5) Insect||(e) Parasite|
Answer: 1 → d, 2 → a, 3 → e, 4 → b, 5 → c
Question 10: Mark ‘T’ if the statement is true and ‘F’ if it is false:
Answer: (i) False: Oxygen is released during photosyntheis.
(ii) False: Plants which synthesize their food are called autotrophs.
(iii) True: The product of photosynthesis is carbohydrate.
Question 11: Choose the correct option from the following:
(a) Which part of the plant gets carbon dioxide from the air for photosynthesis?
Answer: (ii) Stomata
(b) Plants take carbon dioxide from the atmosphere mainly through their:
Answer: (iv) Leaves
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