Download App

STD 11 - 11. photosynthesis in higher plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 11. photosynthesis in higher plants1 Mark
MCQ
Assertion : Cyclic pathway of photosynthesis first appeared in some eubacterial species.

Reason : Oxygen started accumulating in the atmosphere after the non-cyclic pathway of photosynthesis evolved.

  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • ✓
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: B.
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
b
Photosynthetic bacteria have a substance called bacteriochlorophyll. The bacteriochlorophyll pigment absorbs light in the extreme $UV$ and infra-red parts of the spectrum which is outside the range used by normal chlorophyll, seen in plants.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from STD 11 - 11. photosynthesis in higher plants→STD 11 - 11. photosynthesis in higher plants — all question types→BIOLOGY STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Mark the odd one
→
Inhibition of Succinic dehydrogenase enzyme by malonate is a classical example of.
→
Given characters are showed in .......

$-$ They are located in the inner wall of alimentary canal.

$-$ They do not show any striation.

$-$ They are non-striated and spindle shaped.

$-$ They are involuntary and innervated by autonomous nervous system

→
Chromosome movement during anaphase is the result of:
→
Duration of cardiac cycle is:
→
Which of the chloroplast does not contain grana
→
Cortex consists of three sub-zones in dicot stem, they are

$I.$ hypodermis $II.$ cortical layer

$III.$ pericycle $IV.$ endodermis $V.$ epidermis

→
Which one of the followings are male sex hormones?
→
Unipolar neurons with an axon and no dendrite are present in
→
The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in
→