General Knowledge - Biology

Exercise :: Biology - Section 1

  • Biology - Section 1
19. 

Photosynthesis takes place faster in

A. yellow light
B. white light
C. red light
D. darkness

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

20. 

Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by

A. Robert Hooke
B. Robert Brown
C. Rudolf Virchow
D. Theodore Schwann

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

21. 

Primary phloem develops from

A. lateral meristem
B. protoderm
C. extrastelar cambium
D. provascular tissue

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

22. 

Other than spreading malaria, anopheles mosquitoes are also vectors of

A. dengue fever
B. filariasis
C. encephalitis
D. yellow fever

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

23. 

Plants that grow in saline water are called

A. halophytes
B. hydrophytes
C. mesophytes
D. thallophytes

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

24. 

Pyorrhoea is a disease of the

A. nose
B. gums
C. heart
D. lungs

Answer: Option B

Explanation:

Pyorrhoea, or periodontal disease, to give it a proper medical term, is a disease of the gums, it is one of the most widely prevalent diseases. It affects the membrane surrounding the roots of the teeth and leads to loosening of the teeth, pus formation, and shrinkage of the gum. This disease is the primary cause for tooth loss among adults.