Question: 105: Match List – I with List – II :
| List – I | List – II |
|---|---|
| (a) Porins | (i) Pink coloured nodules |
| (b) leg haemoglobin | (ii) Lumen of thylakoid |
| (c) \mathrm{H}^{+} accumulation | (iii) Amphibolic pathway |
| (d) Respiration | (iv) Huge pores in outer membrane of mitochondria |
Choose the correct answer from the options given below :
(1) (a) – (ii), (b) – (i), (c) – (iv), (d) – (iii)
(2) (a) – (iv), (b) – (i), (c) – (ii), (d) – (iii)
(3) (a) – (iii), (b) – (iv), (c) – (ii), (d) – (i)
(4) (a) – (ii), (b) – (iv), (c) – (i), (d) – (iii)
Answer: Option (2)
Explanation:
Porins are protein channels present in the outer membrane of mitochondria.
They form huge pores that allow the passage of small molecules and ions.
Therefore, Porins correctly match with huge pores in the outer membrane of mitochondria.
Leg haemoglobin is a haem protein found in the root nodules of leguminous plants.
It imparts a pink colour to the nodules and helps in regulating oxygen concentration for nitrogen fixation.
Thus, leg haemoglobin matches with pink coloured nodules.
During the light reaction of photosynthesis, protons accumulate in the lumen of the thylakoid.
This \mathrm{H}^{+} accumulation creates a proton gradient required for ATP synthesis.
Hence, \mathrm{H}^{+} accumulation matches with the lumen of thylakoid.
Respiration involves both catabolic and anabolic processes.
Because it participates in breakdown as well as synthesis of intermediates,
it is called an amphibolic pathway.
Therefore, respiration matches with amphibolic pathway.
Thus, the correct matching is given in Option (2).