Multiple Choice Questions on Food Chain:
1. What is a food chain?
A. A long chain made of food
B. Process of preparing food
C. Food was locked by a chain
D. Pathway that energy and nutrients flow through the ecosystem
Answer: D
2. What is a food web?
A. In the food web we find many different paths on plants and animals which are connected to each other.
B. Process of preparing food
C. Food was locked by a chain
D. Pathway that energy and nutrients flow through the ecosystem
Answer: A
3. The organism that first begins a food chain is_______
A. self-supporting
B. herbivorous
C. carnivorous
D. parasitic
Answer: A
4. A food web consists of_________
A. producers only
B. consumers only.
C. interconnected food chains.
D. unconnected food chains.
Answer: C
5. Which of the following is the correct sequence of the food chain?
A. Plants - mice - bobcats -badgers
B. Plants - mice - badgers - bobcats
C. Plants - badgers -mice - bobcats
D. Plants - badgers - bobcats -mice
Answer: B
6. Correct sequence in the food chain is________.
A. Grass → Grasshopper → Frog → Snake
B. Grass → Snake → Insects → Deer
C. Grass → Wolf → Deer
→ Buffalo
D. Bacteria → Grass → Rabbit → Wolf
Answer: A
7. Which of the following condition is true about the food chain?
A. Provide more energy for the next trophic level
B. Provides food for succeeding organisms
C. Consume energy from the next trophic level
D. Do not pass energy to the next trophic level
Answer: B
8. A food chain starts with a_______
A. producer
B. consumers
C. decomposer
D. scavengers
Answer: A
9. The structure of a complete ecosystem should include_______
A. Ecosystem components, food chains, and food webs
B. Producers, consumers, decomposers, and food webs
C. Non-living matter and energy, producers, consumers, decomposers
D. All food chains and food webs
Answer: C
10. Which of the following cannot be a food chain?
(i) Grass, lion, rabbit, wolf
(ii) Plankton, man, fish, grasshopper
(iii) Wolf, grass, snake, tiger
(iv) Frog, snake, eagle, grass, grasshopper
A. (i) and (iii)
B. (iii) and (iv)
C. (ii) and (iii)
D. (i) and (iv)
Answer: C
11. Which of the following are characteristic of ecosystem food webs_________
A. One species can only be eaten by another species
B. The number of links in the food chain is infinite
C. An organism may belong to different trophic classes
D. All creatures on the food web are predators
Answer: C
12. In the following food chain, energy flows from
Grass→Grasshopper→Frog→Snake→Eagle
A. Eagle to Grass
B. Grass to Eagle
C. In all directions
D. There is no energy flow
Answer: A
13. In the food chain given below, the grasshopper occupies the _____ trophic level.
Grass→Grasshopper→Frog→Snake→Eagle
A. First
B. Second
C. Third
D. Fourth
Answer: D
14. Which of the following statements about food chains is true________
A. A food chain is the channel through which energy flows in an ecosystem
B. The parasitic food chain is the main food chain in terrestrial ecosystems
C. Along the food chain, animals get bigger and bigger
D. In the food chain, each animal can only belong to a specific trophic level according to the animal's diet.
Answer: A
15. In the food chain given below, if the amount of energy available at the fourth trophic level is 5 kJ, what was the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
A. 500 kJ
B. 50 kJ
C. 5000 kJ
D. 5 kJ
Answer: C
16. In the following food chain, which organisms will have the least energy?
Grass→Grasshopper→Frog→Snake→Eagle
A. Grass
B. Grasshopper
C. Snake
D. Eagle
Answer: D
17. Food webs consist of many interconnected food chains and a realistic representation of feeding relationships in ecosystems.
A. True
B. False
Answer: A
18. A conceptual tool used to illustrate the natural interconnection of food chains in an ecosystem is called the food web.
A. True
B. False
Answer: A
19. Assertion (A): Food chains interconnected together in an ecosystem is known as a food web
Reason (R): Food webs disrupt the stability of an ecosystem
A. Assertion and Reason are true, and the reason is the correct explanation of the assertion
B. Assertion and Reason are true, and the reason is not the correct explanation of the assertion
C. Assertion is a true statement but the reason is false
D. Assertion and reason are false statements
Answer: C
20. Assertion: A network of interconnected food chains in an ecosystem is known as a food web.
Reason: Animals like kites cannot be a part of a food web.
A. Both assertion and reason are true and the reason is the correct explanation of the assertion
B. Both assertion and reason are true but the reason is not the correct explanation of the assertion
C. Assertion is a true statement, but the reason is false
D. Both assertion and reason are false statements
Answer: D