Science Practice Quiz 138

Q1.What common practice do farmers employ to help plants fulfill their nitrogen requirements?

A. Adding phosphorus-rich fertilisers to the soil B. Ensuring adequate sunlight exposure C. Adding fertilisers rich in nitrogen to the soil D. Providing excess water to the plants

Q2.What is a characteristic feature of plants that lack chlorophyll?

A. They can synthesize their own food efficiently. B. They depend on other plants for food. C. They perform photosynthesis at a higher rate. D. They are typically found in deep-sea environments.

Q3.Which of the following plants is an example of one that lacks chlorophyll and obtains readymade food from another plant?

A. Algae B. Cuscuta (Amarbel) C. Mango tree D. Sunflower

Q4.In the context of plants like Cuscuta, what is the term for the plant on which it climbs and from which it derives nutrients?

A. Parasite B. Symbiote C. Host D. Epiphyte

Q5.What is the primary reason for the green color of algae and their ability to prepare their own food?

A. Presence of nitrogen-fixing bacteria B. Absorption of dissolved minerals C. Containment of chlorophyll D. High concentration of carbohydrates

Q6.Which of the following plants is explicitly identified as a parasite in the provided text?

A. Pitcher plant B. Mushroom C. Cuscuta D. Amarbel

Q7.What term is used in the text to describe plants that trap and digest insects?

A. Saprotrophs B. Parasites C. Insectivorous plants D. Autotrophs

Q8.In a pitcher plant, the pitcher-like structure, which traps insects, is a modified part of which plant organ?

A. Stem B. Root C. Flower D. Leaf

Q9.How do pitcher plants digest the insects they trap to absorb nutrients?

A. By crushing them with the lid B. By absorbing sunlight through the insect's body C. By secreting digestive juices D. By using the insect's own enzymes

Q10.Despite being green and carrying out photosynthesis, why do pitcher plants feed on insects?

A. They use insects for reproduction. B. They do not get all the required nutrients from the soil. C. They need insects for structural support. D. They use insects to attract pollinators.

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Science Practice Quiz 138