Plant Diversity PYQs — 13 UPSC CSE Previous Year Questions

Question 1

Consider the following statements about Rhynchostylis retusa (Foxtail orchid): It is an epiphytic orchid. The species is endemic to North-east India. It is the State flower of Arunachal Pradesh and Assam. Which of the statements given above is/are correct?

Accepted Answer

B. 1 and 3

Question 2

Consider the following pairs : Plant Description I. Cassava : Woody shrub II. Ginger : Herb with pseudostem III. Malabar spinach : Herbaceous climber IV. Mint : Annual shrub V. Papaya : Woody shrub How many of the above pairs are correctly matched?

Accepted Answer

B. Only three

Question 3

Consider the following plants : Groundnut Horse-gram Soybean How many of the above belong to the pea family ?

Accepted Answer

C. All three

Question 4

Which one of the following is used in preparing a natural mosquito repellent?

Accepted Answer

C. Lemongrass

Question 5

In the nature, which of the following is/are most likely to be found surviving on a surface without soil? Fern Lichen Moss Mushroom Select the correct answer using the code given below.

Accepted Answer

C. 2 and 3

Question 6

Consider the following statements: Moringa (drumstick tree) is a leguminous evergreen tree. Tamarind tree is endemic to South Asia. In India, most of the tamarind is collected as minor forest produce. India exports tamarind and seeds of moringa. Seeds of moringa and tamarind can be used in the production of biofuels. Which of the statements given above are correct?

Accepted Answer

B. 3, 4 and 5

Question 7

Consider the following: Birds Dust blowing Rain Wind blowing Which of the above spread plant diseases?

Accepted Answer

D. 1, 2, 3 and 4

Question 8

With reference to Neem tree, consider the following statements: Neem oil can be used as a pesticide to control the proliferation of some species of insects and mites. Neem seeds are used in the manufacture of biofuels and hospital detergents. Neem oil has applications in pharmaceutical industry. Which of the statements given above is/are correct?

Accepted Answer

C. 1 and 3 only

Question 9

In making the saffron spice, which one of the following parts of the plant is used?

Accepted Answer

D. Stigma

Question 10

Which one of the following is an insectivorous plant?

Accepted Answer

B. Pitcher plant

Question 11

Which one of the following parts of the pitcher plant becomes modified into a pitcher?

Accepted Answer

B. Leaf

Question 12

Dalbergia species is associated with which one of the following?

Accepted Answer

D. Rosewood

Question 13

Which one of the following is a modified stem?

Accepted Answer

D. Potato

Plant	Description
I. Cassava	: Woody shrub
II. Ginger	: Herb with pseudostem
III. Malabar spinach	: Herbaceous climber
IV. Mint	: Annual shrub
V. Papaya	: Woody shrub