Q1. Which of the following crops would be preferred for sowing in order to enrich to soil with nitrogen?
Q2. Which of the following plants is referred to as a living fossil?
Q3. Which one of the following vegetable is not obtained from wild cabbage?
(d) None of these
Q4. Softening of mature ripe fruit is due to-
(a) Dissolution of middle lamella
(b) Degradation of primary wall
(d) Removal of suberin deposits in the cell wall
Q5. Which one of the following processes takes place in lakes during eutrophication?
(a) Rapid destruction of algal growth
(b) Excessive availability of dissolved oxygen
(c) Loss of dissolved nutrients from water
(d) Excessive entry of nutrient into water
Q6. .The female gametophyte of angiosperm is mostly
Q7. Which one of the following is a fungus?
Q8.”Consider the following cell organelles of the organisms
Which of the ones given above is/are semi-autonomous organelle(s)?”
(a) All of these
(b) I and II
(c) II and III
(d) Only II
Q9. Match List-I (modified stem) with List-II (example) and select the correct answer using the codes given below the lists?
List-I (Modified stem) List-II (Example)
A. Rhizome 1. Onion
B. Tuber 2. Ginger
C. Bulb 3. Potato
Codes: A B C
(a) 3 2 1
(b) 2 3 1
(c) 2 1 3
Q10. Consider the following plant?
(3) Sweet potato
The roots of which of these plants bear adventitious buds that developed into new individuals under favorable conditions:
(a) 1 and 2
(b) 2 only
(c) 3 only
(d) 1, 2 and 3