Question 3 of 12intermediate💡 UnderstandMatching3 marks

Match the following

Column IColumn II
(a) Cristae(i) Flat membranous sacs in stroma
(b) Cisternae(ii) Infoldings in mitochondria
(c) Thylakoids(iii) Disc-shaped sacs in Golgi apparatus
Correct Answer

(a) - (ii), (b) - (iii), (c) - (i)

Exercise: EXERCISES | Q: 3 | (Page 19)
For More Understanding

Explanation

This matching question tests students' understanding of cell organelle structures. Cristae are the infoldings of the inner mitochondrial membrane that increase surface area for ATP production. Cisternae are the disc-shaped flattened sacs that make up the Golgi apparatus where proteins are modified. Thylakoids are flattened membranous sacs found in the stroma of chloroplasts, arranged in stacks called grana.

Solution Steps

  1. Step 1: Identify cristae from context - 'The inner membrane forms a number of infoldings called the cristae' in mitochondria → matches with (ii)

  2. Step 2: Identify cisternae from context - 'proteins...are modified in the cisternae of the golgi apparatus' and Golgi is 'composed of flattened sacs' → matches with (iii)

  3. Step 3: Identify thylakoids from context - 'organised flattened membranous sacs called the thylakoids, are present in the stroma' → matches with (i)

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