Law of limiting factor was given by from Biology Photosynthesis

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

151.

The specific character of C4  plants is

  • bulliform cells

  • Kranz anatomy

  • parallel venation

  • isobilateral leaf


152.

In CAM plants, CO2 acceptor is

  • RuBP

  • PEP

  • OAA

  • PGA


Advertisement

153.

Law of limiting factor was given by

  • Leibig

  • Blackman

  • Calvin

  • Arnon


B.

Blackman

Law of minimum was given by Liebig. It states that when a process, such as growth, is governed by a number of separate factors, the rate of the process is limited by pace of slowest factor.

Blackman' (1905) extended the law of minimum to formulate the law of limiting factors which in his own words is when a process is conditioned as to its rapidity by a
number of separate factors, the rate of the process is limited by the pace of slowest factor.

Calvin (1954) (Nobel Prize winner) traced the path of carbon in photosynthesis.

Amon (1960) demonstrated cychic and non-cyclic photophosphorylation.


Advertisement
154.

Which one of the following contain agranal chloroplasts?

  • C3 plants

  • Succulants

  • C4 plants

  • Hydrophytes


Advertisement
155.

For synthesis of one hexose sugar, how many times Calvin cycle is turned ?

  • 12

  • 2

  • 6

  • 3


156.

The number of chlorophyll molecules in a quantasome is

  • 50- 100

  • 200- 250

  • 300- 400

  • 500- 600


157.

Active K+ exchange mechanism for opening and closing of stomata was given by

  • Darwin

  • Levit

  • Scarth

  • Khorana


158.

Photosynthetic bacteria have :

  • pigment system I (only one pigment system)

  • pigment system II

  • both (a) and (b)

  • some other type


Advertisement
159.

Most effective wavelength of light photosynthesis is :

  • green

  • violet

  • red

  • yellow


160.

C4 plants, synthesis of sugars/final CO2 fixation occurs in:

  • palisade cells

  • spongy cells

  • undifferentiated mesophyll cells

  • bundle sheath cells


Advertisement