Question

All plastids have essentially same structure because

• A. They have to perform same function.
• B. They are localized in aerial parts of plant.
• C. All plastids store starch, lipid and proteins.
• D. One type of plastids can be differentiated into another type of plastid depending on cell requirements.

Answer 1

The correct option is D One type of plastids can be differentiated into another type of plastid depending on cell requirements.

Plastids develop from colourless precursors called proplastids. Plastids are of three main types- leucoplasts, chloroplasts and chromoplasts. Chromoplasts can develop from proplastids, leucoplast and chloroplasts. Chloroplasts can arise from pre-existing chloroplasts, proplastids and leucoplasts while leucoplasts are formed from proplastids and leucoplasts.