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MCQ on Class 4 How do Plants make food

Last updated on December 9th, 2023 at 09:59 pm

Class 4 Science – How do Plants make food

 

    What is the main function of leaves in plants?

  1. a) To produce oxygen
  2. b) To provide support
  3. c) To make food for the plant
  4. d) To attract pollinators

Answer: c) To make food for the plant

 

    Which pigment is responsible for the green color of leaves?

  1. a) Carotene
  2. b) Xanthophyll
  3. c) Chlorophyll
  4. d) Anthocyanin

Answer: c) Chlorophyll

 

    What is the process by which leaves prepare food in plants?

  1. a) Respiration
  2. b) Transpiration
  3. c) Photosynthesis
  4. d) Absorption

Answer: c) Photosynthesis

 

    What are plants called as they are able to make their food?

  1. a) Consumers
  2. b) Producers
  3. c) Decomposers
  4. d) Predators

Answer: b) Producers

 

    Which of the following is required for photosynthesis to occur?

  1. a) Water
  2. b) Oxygen
  3. c) Nitrogen
  4. d) Hydrogen

Answer: a) Water

 

    What is the main function of roots in plants?

  1. a) To produce food
  2. b) To provide support
  3. c) To absorb water and minerals from the soil
  4. d) To attract pollinators

Answer: c) To absorb water and minerals from the soil

 

    What is the structure that attaches the leaf to the stem called?

  1. a) Lamina
  2. b) Apex
  3. c) Midrib
  4. d) Petiole

Answer: d) Petiole

 

    What is the main function of veins in leaves?

  1. a) To provide support
  2. b) To transport water and minerals
  3. c) To produce food
  4. d) To attract pollinators

Answer: b) To transport water and minerals

 

    Which part of the leaf is responsible for carrying water and minerals from the stem to the leaf?

  1. a) Midrib
  2. b) Lamina
  3. c) Apex
  4. d) Petiole

Answer: a) Midrib

 

    What is the main function of the leaf blade or lamina?

  1. a) To absorb water and minerals
  2. b) To provide support
  3. c) To make food for the plant
  4. d) To attract pollinators

Answer: c) To make food for the plant

 

    What is the arrangement of veins in a leaf called?

  1. a) Network
  2. b) Venation
  3. c) Reticulation
  4. d) Parallelism

Answer: b) Venation

 

    What are the two types of venation?

  1. a) Circular and spiral venation
  2. b) Radial and diagonal venation
  3. c) Reticulate and parallel venation
  4. d) Divergent and convergent venation

Answer: c) Reticulate and parallel venation

 

    In which type of venation are the veins arranged in the form of a network?

  1. a) Parallel venation
  2. b) Circular venation
  3. c) Spiral venation
  4. d) Reticulate venation

Answer: d) Reticulate venation

 

    Which type of venation is found in plants with a fibrous root system?

  1. a) Reticulate venation
  2. b) Spiral venation
  3. c) Circular venation
  4. d) Parallel venation

Answer: d) Parallel venation

 

    Which part of the leaf determines the type of venation in a plant?

  1. a) Lamina
  2. b) Midrib
  3. c) Petiole
  4. d) Apex

Answer: b) Midrib

 

    What are the tiny pores present in the leaves called?

  1. a) Stomata
  2. b) Veins
  3. c) Midribs
  4. d) Lamina

Answer: a) Stomata

 

    Where are stomata generally present on a leaf?

  1. a) Upper surface
  2. b) Both upper and lower surface
  3. c) Lower surface
  4. d) None of the above

Answer: c) Lower surface

 

    What is the process by which plants give out excess water in the form of water vapour through stomata?

  1. a) Transpiration
  2. b) Photosynthesis
  3. c) Respiration
  4. d) Absorption

Answer: a) Transpiration

 

    What is the green pigment present in the leaves that traps sunlight?

  1. a) Chloroplast
  2. b) Chlorophyll
  3. c) Mitochondria
  4. d) Ribosome

Answer: b) Chlorophyll

 

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