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PLANT PHYSIOLOGY (Part-I)

📆 November 8, 2024

Total Questions: 34

31. Non-green plants lack which of the following? [S.S.C. Online CHSL (T-I) 24.01.2017 (Shift-II)]

(a) Chlorophyll
(b) Lycophyll
(c) Cyanophyll
(d) Phototropism

Correct Answer: (a) Chlorophyll

Solution:Chlorophyll -
Chlorophyll is the green pigment essential for photosynthesis. Non-green plants lack or have very little chlorophyll, which is why they cannot perform photosynthesis in the typical way.

32. Photosynthesis takes place inside plant cells in ____ . [S.S.C. Online CHSL (T-I) 20.01.2017 (Shift-III)]

(a) Ribosomes
(b) Chloroplasts
(c) Nucleus
(d) Mitochondria

Correct Answer: (b) Chloroplasts

Solution:Chloroplasts -
Photosynthesis occurs within specialized organelles called chloroplasts, which contain chlorophyll. These are found in the cytoplasm of plant cells, particularly in the leaves.

33. Who among the following is credited with starting the work on plant tissue culture? [S.S.C. Online Graduate Level (T-I) 1.09.2016 (Shift-II)]

(a) F.C. Steward
(b) P. Maheshwari
(c) P.R. White
(d) Haberlandt

Correct Answer: (d) Haberlandt

Solution:Haberlandt -
Gottlieb Haberlandt, an Austrian botanist, is credited with pioneering work on plant tissue culture in the early 20th century, although his initial attempts at culturing isolated plant cells were unsuccessful.

34. Which of the following Indian scientists is associated with the invention of the crescograph? [S.S.C. Online MTS (T-I) 5.08.2019 (Shift-II)]

(a) Satyendranath Bose
(b) Meghnad Saha
(c) Jagdish Chandra Bose
(d) Homi J. Bhabha

Correct Answer: (c) Jagdish Chandra Bose

Solution:Jagdish Chandra Bose -
Sir Jagdish Chandra Bose, an Indian scientist, invented the crescograph, an instrument used to measure the growth rate of plants.