Science MCQ part 1
1. Which of the following is a plant hormone ? (a) Insulin (b) Thyroxin (c) Oestrogen (d) Cytokinin Ans. (d) Cytokinin 2. The gap between two neurons is called a (a) dendrite (c) axon (b) synapse (d) impulse Ans. (b) synapse 3. The brain is responsible for (a) thinking (b) regulating the heart beat (c) balancing the body (d) all of the above Ans. (d) all of the above 4. The kidneys in human beings are a part of the system for (a) nutrition (b) respiration (c) excretion (d) transportation Ans. (c) excretion 5. The xylem in plants are responsible for (a) transport of water (b) transport of food (c) transport of amino acids (d) transport of oxygen Ans. (a) transport of water 6. The autotrophic mode of nutrition requires (a) carbon dioxide and water (b) chlorophyll (c) sunlight (d) all of the above Ans. (d) all of the above 7. The breakdown of pyruvate to give carbon dioxide, water and energy takes place in (a) cytoplasm (b) mitochondria (c) chloroplast (d) nucleus Ans. (b) mitochondr...
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