Question

A sectional view of the chloroplast is given below. Choose the correct statement for A and B?

• A. A - Envelope of chloroplast possess fully permeable membrane;
  B - DNA
• B. A - Thylakoids arearranged in stacks like the piles of coins called grana;
  B - Possess the enzyme required for protein and carbohydrate synthesis
• C. A - The DNA of the chloroplast are single standard circular DNA
  B - Matrix
• D. A - structure is arranged is stacks like the piles of coins called stroma.
  B - DNA

Answer 1

The correct option is B A - Thylakoids arearranged in stacks like the piles of coins called grana;
B - Possess the enzyme required for protein and carbohydrate synthesis


The space limited by the inner membrane of the chloroplast is called the stroma. The stroma of the chloroplast contains enzymes required for the synthesis of carbohydrates and proteins. It also contains small, double-stranded circular DNA molecules and ribosomes.

A number of organised flattened membranous sacs called the thylakoids, are present in the stroma. Thylakoids are arranged in stacks like the piles of coins called grana (singular: granum) or the intergranal thylakoids.