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Life Processes in Plants

Science · Class 7 · All

ScienceClass 7AllMedium
Q1/15
45s

What is transpiration?

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All 15 questions in this quiz

  1. Why are life processes important for plants?

    1. They help plants survive, grow, reproduce, and maintain life.
    2. They only make plants taller.
    3. They prevent plants from absorbing water.
    4. They are useful only during the daytime.

  2. Why are plants called producers?

    1. Because they consume other organisms.
    2. Because they prepare their own food through photosynthesis.
    3. Because they only absorb water.
    4. Because they do not require sunlight.

  3. Which of the following is NOT a raw material for photosynthesis?

    1. Water
    2. Carbon dioxide
    3. Sunlight
    4. Oxygen

  4. Why are sunlight and chlorophyll essential for photosynthesis?

    1. They help absorb minerals only.
    2. They provide the energy needed to prepare food.
    3. They increase water loss.
    4. They stop respiration.

  5. Which process releases energy from food in plants?

    1. Photosynthesis
    2. Respiration
    3. Transpiration
    4. Germination

  6. Which tissue transports prepared food from the leaves to other parts of the plant?

    1. Xylem
    2. Phloem
    3. Root hairs
    4. Stomata

  7. Which tissue carries water and minerals from the roots to the leaves?

    1. Phloem
    2. Xylem
    3. Epidermis
    4. Cortex

  8. Tiny pores present on the surface of leaves are called:

    1. Veins
    2. Stomata
    3. Root hairs
    4. Petals

  9. What is transpiration?

    1. Preparation of food
    2. Loss of water vapour from the leaves
    3. Absorption of minerals
    4. Growth of roots

  10. Which gas is released during photosynthesis?

    1. Carbon dioxide
    2. Oxygen
    3. Nitrogen
    4. Hydrogen

  11. Which part of the plant mainly prepares food?

    1. Root
    2. Stem
    3. Leaf
    4. Flower

  12. Which part of the plant mainly absorbs water and minerals from the soil?

    1. Stem
    2. Flower
    3. Root
    4. Leaf

  13. Which pigment gives leaves their green colour and helps in photosynthesis?

    1. Haemoglobin
    2. Chlorophyll
    3. Melanin
    4. Carotene

  14. Which gas is absorbed by plants during photosynthesis?

    1. Oxygen
    2. Nitrogen
    3. Carbon dioxide
    4. Hydrogen

  15. What is the process by which green plants prepare their own food?

    1. Respiration
    2. Photosynthesis
    3. Digestion
    4. Transpiration