Allen Module Biology. We covered all the Allen Module Biology MCQs in this post for free so that you can practice well for the exam.
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Allen Module Biology Objective for Students
When the chloroplast pigments absorb light:
(a) They become reduced.
(b) They lose potential excitement.
(c) Their electrons become excited.
(d) The Calvin cycle is triggered.
Option c – Their electrons become excited
Photosystem (PS-I) and Photosystem-II (PS-II) are named:
(a) In the sequence they work in light reaction.
(b) According to their molecular weight.
(c) In the sequence of their discovery.
(d) In the sequence of their constituents.
Option c – In the sequence of their discovery
During the light reaction of photosynthesis:
(a) ADP is phosphorylated and NADPH oxidized.
(b) ADP is phosphorylated and NADP reduced.
(c) ADP is phosphorylated and NADPH reduced.
(d) ATP is phosphorylated and NADPH reduced.
Option b – ADP is phosphorylated and NADP reduced
The sunlight energy used by green plants in photosynthesis is transformed into:
(a) Chemical energy
(b) Physical energy
(c) Both (a) and (b)
(d) None of the above
Option a – Chemical energy
Which of these is the energy conversion that happens in the process called photosynthesis?
(a) Potential energy to chemical energy.
(b) Light energy to chemical energy.
(c) Heat energy to light energy.
(d) Heat energy to light energy.
Option b – Light energy to chemical energy
Water-soluble pigments found in plant cell vacuoles are:
(a) Chlorophylls
(b) Carotenoids
(c) Anthocyanins
(d) Xanthophylls
Option c – Anthocyanins
Why are dark reactions called so?
(a) They occur in darkness.
(b) They are not light-dependent.
(c) They are not directly light-driven.
(d) Both (a) and (b)
Option c – They are not directly light-driven
Which of the following is an accessory pigment?
(a) Chlorophyll-a
(b) Chlorophyll-c
(c) Grana
(d) Hemozoin
Option b – Chlorophyll-c
The main photosynthetic pigments in plants are:
(a) Chlorophyll-a and chlorophyll-c
(b) Chlorophyll-a and chlorophyll-d
(c) Chlorophyll-b and chlorophyll-a
(d) Chlorophyll-b and chlorophyll-c
Option c – Chlorophyll-b and chlorophyll-a
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