Gate Way To CGL Mains : Biology Quiz

1. Which of the following pteridophytes is known as ‘Horse-tail’ ?

(A) Rhynia

(B) Selaginella

(C) Equisetum 

(D) None of these

2. A plant bearing two types of spores is termed as—

(A) Heterospory 

(B) Seed habit

(C) Homospory 

(D) All of these

3. In Pinus present only—

(A) Male cone

(B) Female cone

(C) Male and female cones

(D) All of these

4. Number of cotyledons found in the embryo of gram is—

(A) 4 

(B) 2

(C) 3 

(D) 1

5. Bryophytes are—

(A) Aquatic 

(B) Terrestrial

(C) Amphibious 

(D) None of these

6.Which gland is known as master gland.

(A) Liver

(B) Thyroid

(C) Pituitary 

(D) Pineal

7. A bryophyte differes from pteridophyte in—

(A) Archegonia

(B) Lack of vascular tissue

(C) Independent gametophyte

(D) None of these

8. Acid rain is mainly a mixture of—

(A) Sulphuric acid and nitric acid

(B) Hexane and methane

(C) Acetic acid and bromine

(D) Ascorbic acid and citric acid

9. Ribosomes are sites for—

(A) Protein synthesis

(B) Photosynthesis

(C) Fat synthesis

(D) Respiration

10. Pyramid of energy is—

(A) Always inverted

(B) Always upright

(C) Sometimes inverted and sometimes upright

(D) None of these

ANSWERS KEY:
1- (C)
2- (A)
3- (D)
4- (B)
5- (C)
6- (C)
7- (B)
8- (A) 
9- (A)
10-(B)