Question

Essay Question: Disscuss the structure of chloroplasts. Explain why this structure is required to achieve the function of chloroplasts. Please be descriptive.

Answer 1

structure of chloroplast:

• It is an organelle that contains chlorophyll
• They are found in the mesophyll layer of leaves
• It has and outer membrane and an inner membrane
• There is an intermediate space between the two membranes
• Inner membrane surrounds the stroma and grana
• Grana are stacks of thylakoids
• Thylakoids are coin like structures arranged on stacks
• Chlorophyll molecules are present on the surface of thylakoids
• Stacks of thylakoid sacs are connected to each other by stromal lamellae

Function:

• Function of chloroplast is to synthesis sugars by the process of photosynthesis
• Energy from the sun is trapped by the chloroplast
• Chlorophyll molecules convert light energy into chemical energy (ATP and NADPH)
• These compounds move into the stroma
• Enzymes of stroma fix the carbon atoms into Cabon dioxide
• These molecular reactions result in the production of sugar in the form of glucose and oxygen.