Photosynthesis MCQs Quiz: 03 1


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Free online interactive MCQs test on ‘ Photosynthesis ‘ with instant answers and reporting. Test # 03

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Photosynthesis: MCQs Quiz - 3

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Question 1
Which pigment absorbs the red and far red light?
A
Cytochrome
B
Phytochrome
C
Carotenoids
D
Chlorophyll
Question 2
Which of the following is a 4-carbon compound?
A
Oxaloacetic acid
B
Phosphoglyceric acid
C
Ribulose biphosphate
D
Phosphoenolpyruvate
Question 3
Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?
A
Red and violet
B
Green and red
C
Blue and green
D
Violet and blue
Question 4
The law of limiting factors was proposed with particular reference to photosynthesis. Identify the scientist who proposed this law.
A
Blackman
B
Calvin
C
Weismann
D
Emerson
Question 5
In Photosynthesis energy from light reaction to dark reaction is transferred in the form of:
A
RUDP
B
ATP
C
ADP
D
Chlorophyll
Question 6
In higher plants the shape of the chloroplast is
A
Discoid
B
Cup-shaped
C
Girdle-shaped
D
Reticulate
Question 7
In C4 plants, the bundle sheath cells
A
Are rich in PEP carboxylase
B
Have large intercellular spaces
C
Have thin walls to facilitate gaseous exchange
D
Have a high density of chloroplasts
Question 8
In C3 plants, the first stable product of photosynthesis during the dark reaction is:
A
Phosphoglyceraldehyde
B
3-phosphoglyceric acid
C
Oxaloacetic acid
D
Malic acid
Question 9
Hill reaction occurs in:
A
Absence of water
B
Total darkness
C
High altitude plants
D
Presence of ferricyanide
Question 10
Etiolation in plants is caused when
A
They are grown in intense light
B
They have mineral deficiency
C
They are grown in dark
D
They are grown in blue light
Question 11
During photorespiration, the conversion of phosphoglycolate to glycolate takes place in this cell organelle
A
Peroxisome
B
Glyoxysome
C
Mitochondria
D
Chloroplast
Question 12
Chloroplast dimorphism is a characteristic feature of
A
Plants with Calvin cycle
B
C4-Plants
C
All plants
D
Only in algae
Question 13
Match the following two lists and select the most accurate option.
List I List II
A. Oxygen evolving complex ferric oxalate I. Potassium
B. Proton gradient concentration II. High oxygen
C. Hill reagent III. ATP synthesis
D. Photo-respiration IV. Pheophytin
  V. Photolysis of water
A
A - V, B - III, C - I, D - II
B
A - I, B - II, C - IV, D - V
C
A - V, B - I, C - IV, D - II
D
A - I, B - IV, C - III, D - V
Question 14
In Kranz anatomy, the bundle sheath cells have
A
Thin walls, no intercellular spaces and several chloroplasts
B
Thick walls, many intercellular spaces and few chloroplasts
C
Thin walls, many intercellular spaces and no chloroplasts
D
Thick walls, no intercellular spaces and large number of chloroplasts
Question 15

Assertion : The atmospheric concentration of CO2 at which photosynthesis just compensates for respiration is referred to as CO2 compensation point.

Reason : The CO2 compensation point is reached when the amount of CO2 uptake is less than that generated through respiration because the level of CO2 in the atmosphere is more than that required for achieving CO2 compensation point.

A
Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B
Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
C
Assertion is true statement but Reason is false.
D
Both Assertion Reason are false statements.
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One thought on “Photosynthesis MCQs Quiz: 03

  • Ankita

    awesome question
    it’s very good for testing ur knowledge abt the chapters