1) Which one of these conditions doesn't effect transpiration? a) Humidity b) Temperature c) Rain d) Wind 2) How does light intesity change the rate of transpiration? a) Speed up b) Slow down c) Stay the same 3) Why is a leaf green ? a) because it contains chlorophyll. b) because it contains chloroplasts. c) because it contains stomata. d) because it contains palisade cells. 4) What are the uses of Potassium ions? a) Building proteins and growth b) Respiration and growth. c) Respiration and photosynthesis. d) Photosynthesis. 5) What are the deficiency symptoms for a lack of Nitrate ions ? a) Poor growth and yellow leaves. b) Poor root growth and discoloured leaves. c) Poor flowers, fruit growth and discoloured leaves. d) Yellow leaves. 6) Which order of power on the food chain is correct (weakest to strongest) a) Consumer, producer, predator. b) Predator, consumer, producer. c) Producer, consumer, predator. d) Producer, predator, consumer. 7) Which point about tigers is NOT true? a) They're omnivores. b) They're predators. c) They eat meat. d) They eat consumers. 8) What does freezing do to the microbial growth of food ? a) Halts it. b) Slows down. c) Speeds up. d) Nothing. 9) Which one of these is another type of preswervation ? a) Soaking. b) Jellifying. c) Smoking. d) Pressurising. 10) Osmosis is a type of ? a) transpiration b) photosynthesis c) diffusion d) carbon cycle 11) Which of these best describes a limp plant cell ? a) turgid b) plasmolysed c) flaccid d) crenuted

B4 Students questions

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