While walking through garden , Kapil plucked the tips of some flowering plants. Gardner saw him doing this and persuaded him not to do so as it is not good for plant growth. (i) What happens to the plants if their tips are removed ? (ii) What are meristems ? (iii) How meristems are classified ? (iv) What value was displayed by the garden ?
(i) What happenes to the plants if their tips are removed ? (ii) What are meristems ? (iii) How meristems are classified ?
A gardener forgot to water a potted plant for a day during summer, what will happen to the plant ? Do you think it is reversible ? If yes, how ?
(a) What does a Mimosa pudica plant do in response to touch? What is this phenomenon known as? (b) What happens to the dandelion flower (i) during daytime, and (ii) at night? What is this phenomenon known as?
(a) What does a plant root do in response to water? What is this phenomenon known as? (b) What happens to the moonflower (i) during daytime, and (ii) at night? What is the phenomenon known as?
Bunty was fond of painting. He observed that hairs of paint brush do not cling together when dry and even when dipped in water but form a fine tip when taken out of it. He was quite surprised to see it but found it very useful for doing neat and beautiful painting. He asked his elder sister Shanti, who was a science student of class XI, that why do hairs of a paint brush cling together when taken out of water. His elder sister explained him the reason nicely. (i) What are the values displayed by Bunty here? (ii) Why do the hairs of a paint brush cling together when taken out of water?\
LAKHMIR SINGH & MANJIT KAUR-MODEL TEST PAPER 2-SECTION B
