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Important Questions on Plant Photosynthesis

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In recent patterns of SSC, Banking, Railways, and others, we find important questions from the General Science section. In this section, Biology topics are considered important. In this article, we will provide a Practice set from one of the most important topics of Biology i.e Plant Photosynthesis. This practice will help students in revising the topic thoroughly.

List of Important Questions on Plant Photosynthesis :

Que 1. What happens when the process of photosynthesis takes place?
(a) Taking oxygen and releasing carbon dioxide
(b) Taking nitrogen and releasing oxygen
(c) Taking oxygen and releasing nitrogen
(d) Taking carbon dioxide and releasing oxygen

Ans. (d) Taking carbon dioxide and releasing oxygen
Explanation: The process of photosynthesis involves taking carbon dioxide and releasing oxygen.
 

Que 2. What gas played a major role in the process of photosynthesis?
(a) Ammonia
(b) Sulphur
(c) Chlorine
(d) Carbon dioxide

Ans. (d) Carbon dioxide
Explanation: Carbon dioxide gas played a major role in the process of photosynthesis.
 

Que 3. Which gas is released during the process of photosynthesis?
(a) Carbon dioxide
(b) Oxygen
(c) Nitrogen
(d) Hydrogen

Ans. (b) Oxygen
Explanation: Oxygen gas is released during the process of photosynthesis.
 

Que 4. Oxygen gas which is released during photosynthesis, comes from?
(a) Water
(b) Carbon dioxide
(c) Ammonia
(d) Chlorophyll

Ans. (a) Water
Explanation: Oxygen gas which is released during photosynthesis, comes from water.
 

Que 5. Which of the given lights are strongly absorbed by plants?
(a) Indigo and Yellow
(b) Yellow and Violet
(c) Blue and Red
(d) Orange and Violet

Ans. (c) Blue and Red
Explanation: Blue and Red lights are strongly absorbed by plants because photosynthesis occurs more in these lights.
 

Que 6. Which of the given options produces oxygen in a higher percentage?
(a) Algae
(b) Rice husks
(c) Grasses
(d) Trees

Ans. (a) Algae
Explanation: Aquatic plants and Algae produces around 90% of oxygen.
 

Que 7. Name the process by which plants synthesize their food.
(a) Respiration
(b) Photosynthesis
(c) Osmosis
(d) Reverse Osmosis

Ans. (b) Photosynthesis
Explanation: Photosynthesis is the process by which plants synthesize their food.
 

Que 8. The most effective light in the process of photosynthesis?
(a) Violet
(b) Green
(c) Red 
(d) Yellow

Ans. (c) Red 
Explanation: The best photosynthesis takes place in the presence of the Red light spectrum.
 

Que 9. During the process of photosynthesis, which of the following conversion takes place?
(a) Chemical energy converted to electrical energy
(b) Wind energy converted to chemical energy
(c) Chemical energy converted to light energy
(d) Light energy converted to chemical energy

Ans. (d) Light energy converted to chemical energy
Explanation: During the process of photosynthesis, Light energy is converted to chemical energy.
 

Que 10. Which of the following has the maximum efficiency in converting light energy to chemical energy?
(a) Earthworm
(b) Chlorella
(c) Tiger
(d) Snake

Ans. (b) Chlorella
Explanation: Chlorella has the maximum efficiency in converting light energy to chemical energy.
 

Que 11. Which of the following performs photosynthesis?
(a) Green leaves of a plant
(b) Roots of a plant
(c) Seed of a plant
(d) Stem of a plant

Ans. (a) Green leaves of a plant
Explanation: Green leaves of a plant generally performs photosynthesis.
 

Que 12. What function does Phloem perform?
(a) Transportation of water
(b)Transportation of food
(c)Transportation of oxygen
(d)Transportation of amino acid

Ans. (d) Transportation of food
Explanation: Transportation of food is the main function of phloem.
 

Que 13. What are the effects of deforestation?
(a) Carbon dioxide levels will increase
(b) Oxygen level will increase
(c) Carbon dioxide levels will decrease
(d) Pollution will decrease

Ans. (a) Carbon dioxide level will increase
Explanation: Carbon dioxide levels will increase due to deforestation, which is very harmful to the life of organisms living on the earth.
 

Que 14. Which of the given options has water-soluble photosynthetic pigments?
(a) chlorophyll a
(b) xanthophyll
(c) Anthocyanin
(d) chlorophyll b

Ans. (c) Anthocyanin
Explanation: Anthocyanin has water-soluble photosynthetic pigments.
 

Que 15. The minerals involved in the decomposition reactions during photosynthesis are?
(a)manganese and chlorine
(b)potassium and manganese
(c)potassium and chlorine
(d)magnesium and chlorine

Ans. (a) manganese and chlorine
Explanation:  Manganese and chlorine are the minerals involved in the decomposition reactions during photosynthesis.
 

Que 16. Where does the photoreaction occur?
(a) Endoplasmic reticulum
(b) Cytoplasm
(c) Stroma
(d) Grana

Ans. (d) Grana
Explanation: Photoreaction occurs in grana. Grana is the stacks of thylakoids embedded in the stroma of a chloroplast.
 

Que 17. Kranz’s anatomy can be seen in the leaves of?
(a) wheat
(b) sugarcane
(c) potatoes
(d) mustard

Ans. (b) sugarcane
Explanation: Kranz’s anatomy can be seen in sugar cane leaves.
 

Que 18. The most suitable temperature for photosynthesis is?
(a) 35-40℃
(b) 25-35℃
(c)20-25℃
(d)10-15℃

Ans. (b) 25-35℃
Explanation: The most suitable temperature for photosynthesis is 25-35℃
 

Que 19.  The process of photosynthesis takes place in?
(a) Endoplasmic reticulum
(b) Nucleus
(c) Golgi body
(d) Chloroplast

Ans. (d) Chloroplast
Explanation:  The process of photosynthesis takes place in the Chloroplast.
 

Que 20. Which among the following is the full form of ATP?
(a) Adenosine Triphosphate
(b) Amine Triphosphate
(c) Ammonium Triphosphate
(d) Amine Try Poly Phosphate

Ans. (a) Adenosine Triphosphate
Explanation: The full form of ATP is Adenosine Triphosphate.

 



Last Updated : 24 Nov, 2022
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