Biology
Assertion (A): The food prepared by leaves is transported to all parts of the plant.
Reason (R): Roots are the underground parts of the plant which absorb food material from the soil.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Answer
A is true but R is false.
Explanation — A is true as the food prepared by the leaves is transported to all parts of the plant including the roots.
R is false as roots absorb water and minerals from the soil. Water is the raw material used to prepare food (glucose) by photosynthesis.
Therefore, A is true but R is false is the correct option.
Related Questions
Briefly explain, how transpiration helps in the upward conduction of water in plants?
How does temperature, light intensity and wind affect transpiration?
Draw a magnified view of the root hair and label all its parts neatly. From the parts labelled by you, name the parts matching the description given below:
(a) Outermost layer of the root
(b) Unicellular outgrowth
(c) Part that is freely permeable
(d) Part that is semi-permeable
After playing outside on a hot sunny afternoon, Aarav came home sweating and drank a lot of water. Later in the evening, he noticed that the plant on his study table looked dull and droopy. Wondering if plants also "get hot" in summer, he asked his mother what was wrong. She told him that just like humans sweat to cool down, plants also lose water through a process that helps them stay cool. But when too much water is lost, the plant starts to droop.
(a) What is the process by which plants lose water through their leaves?
(b) Through which part of the leaf does this water loss mainly happen?
(c) Besides cooling the plant, how else does transpiration help the plant?
(d) In transpiration, water is lost from the plant in the form of ………… (water vapour /water droplets).
(e) Draw a simple flow chart showing water movement from roots to leaves and then out of the plant.
(f) Aarav's mother said that once he waters the plant, it will look fresh again. What is the process by which roots absorb water from the soil?