Question

What is a plastid? Which plastid is responsible for photosynthesis in plants? (3 mark)

Answer 1

• Plastids are double membrane bound organelles found inside plants and some algae. (1 mark)

• They are primarily responsible for activities related to production and storage of food. Most plastids are photosynthetic while few are not. (1 mark)

• The plastid responsible for photosynthesis is called chloroplast as it has the green pigment chlorophyll which is mostly seen in plants. (1 mark)