English Biology Quiz: Plants

Choose the best answer; A, B, C, or D to each question.

1. Which of the following is true about all living things?
   1. They can make food.
   2. They breathe in air.
   3. They need sleep.
   4. They can think.
2. Plants take in ... during photosynthesis.
   
   1. carbon dioxide
   2. hydrogen
   3. nitrogen
   4. oxygen
3. Photosynthesis happens ....
   
   1. only in sunlight
   2. only in the dark
   3. only part of the time
   4. all of the time
4. Green plants can only make food ....
   
   1. in the day time
   2. in the night time
   3. in the morning
   4. in the evening
5. Which of the following groups of living things can make their own food?
   
   1. Bird
   2. Plant
   3. Man
   4. Fish
6. Green leaves can absorb ... from the sun.
   
   1. water
   2. carbon dioxide
   3. light energy
   4. oxygen
7. Which of the following plants cannot make its own food?
   
   1. Hibiscus plant
   2. Papaya tree
   3. Mushroom
   4. Water lily plant
8. The food found in the leaves of green plants is ....
   
   1. salt
   2. flour
   3. water
   4. starch
9. What do you use to show that a food substance contains starch?
   
   1. Lime water
   2. Salt solution
   3. Iodine solution
   4. Sugar solution
10. When a few drops of iodine solution are dropped into some starch solution, the starch turns ....
    
    1. blue
    2. yellow
    3. brown
    4. green
11. In strong sunlight, green plants need water and ... to make food.
    
    1. good soil
    2. carbon dioxide
    3. mineral salts
    4. oxygen
12. Plants with no green coloring in their leaves cannot ....
    
    1. breathe air
    2. absorb water
    3. grow well
    4. make food
13. Green plants help to remove ... from the atmosphere.
    
    1. oxygen
    2. water
    3. sunlight
    4. carbon dioxide
14. Water plants are usually put in an aquarium. This is because in strong sunlight, they supply ... to the fishes.
    
    1. food
    2. water
    3. energy
    4. oxygen
15. When green plants make food during the day, they give off ....
    
    1. light energy
    2. oxygen
    3. carbon dioxide
    4. heat energy
16. Green plants are planted everywhere because they help to ... the air in the atmosphere.
    
    1. dirty
    2. clean
    3. spoil
    4. pollute
17. Water helps to keep a plant ....
    
    1. weak
    2. limp
    3. green
    4. firm
18. Plants lose water to their surroundings mainly through the ....
    
    1. roots
    2. stems
    3. leaves
    4. fruits
19. A balsam plant takes in water from ....
    
    1. the air
    2. the pot
    3. the soil
    4. the rocks
20. Plants give out water as ....
    
    1. smoke
    2. rain
    3. ice
    4. water vapor

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