Photosynthesis In Plants Test

Photosynthesis In Plants

This is Photosynthesis In Plants Test-05 for CBSE class 11 Biology.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The \({C_4}\) plants show higher rate of photosynthesis in
  • A
    High temperature
    Correct
  • B
    Optimum temperature
  • C
    Low temperature
  • D
    Absence of temperature
2
ATP molecules required to synthesise one molecule of glucose by \({C_4}\) pathways are
  • A
    24 ATP
  • B
    30 ATP
    Correct
  • C
    12 ATP
  • D
    36 ATP
3
Most abundant enzyme in the world
  • A
    RuBisCo
    Correct
  • B
    ATPase
  • C
    RuBp
  • D
    PEP carboxylase
4
Which of the following occurs in dark reaction of photosynthesis?
  • A
    Formation of ATP
  • B
    Synthesis of PGAL
    Correct
  • C
    Release of \({H_2}\)
  • D
    Release of \({O_2}\)
5
The response of different organism to environment rhythms of light and darkness is called
  • A
    Phototaxis
  • B
    Vernalization
  • C
    Photoperiodism
    Correct
  • D
    Phototropism
6
Photorespiration does not occur in
  • A
    Bacteria
  • B
    \({C_4}\) plants
    Correct
  • C
    Algae
  • D
    \({C_3}\) plants
7
Dark fixation of \(C{O_2}\) in CAM plants is called ocification because it produces
  • A
    Tartaric acid
  • B
    Oxaloacetic acid
  • C
    Formic acid
  • D
    Malic acid
    Correct
8
The law of limiting factors is given by
  • A
    Blackmann
    Correct
  • B
    Sachs
  • C
    Priestly
9
Succulents carry out photosynthesis
  • A
    \({C_3}\) pathway
  • B
    CAM pathway
    Correct
  • C
    \({C_4}\) pathway
  • D
    \(C{O_2}\) pathway
10
Which one is not an internal factor that influence rate of photosynthesis?
  • A
    Mesophyll cells
  • B
    Carbondioxide
    Correct
  • C
    Hormones
  • D
    Chlorophyll
11
As compared to sun plants, plants adapted to low light intensity possess
  • A
    High rate of \(C{O_2}\) fixation
  • B
    Spiny leaves
  • C
    Larger photosynthetic unit
    Correct
  • D
    More extended root system
12
Half leaf experiment is performed to prove
  • A
    \(C{O_2}\) is required for photosynthesis
    Correct
  • B
    Oxygen isrequired for photosynthesis
  • C
    Light is required for photosynthesis
  • D
    Chlorophyll isrequired for photosynthesis
13
Of the total solar radiation the proportion of PAR is
  • A
    More than 80%
  • B
    Less than 50%
    Correct
  • C
    About 70%
  • D
    About 60%
14
Passage of light rays in between the chloroplasts of palisade parenchyma cells to spongy parenchyma is known as
  • A
    Salt Effect
  • B
    Sieve Effect
    Correct
  • C
    Hydro Effect
  • D
    Light Effect
15
Which one is not a internal factor that influence rate of photosynthesis ?
  • A
    Hormones
  • B
    Chlorophyll
  • C
    Leaf anatomy
  • D
    Carbon dioxide
    Correct