What are differences and similarities between granum and stroma

Differences:

1. structure- Each granum consists of 5-25 disc shaped thylakoids stacked one on the other resembling  a stack of coins. Stroma is a fluid filled matrix containing DNA , ribosomes , enzymes, oil droplets and starch grains.

2 .location - grana are found in the stroma while stroma is found within the inner membrane of the chloroplast.

3. enzymes - grana contain enzymes needed for light dependent reactions while stroma contains enzymes used in light independent reactions of photosynthesis

4. function - grana provide a large surface area for the attachment of chlorophylls while stroma houses the sub-organelles of chloroplasts.

Similarities.

1.Both grana and stroma are found within the chloroplast

2. Both grana and stroma take part in the process of photosynthesis.

- Rate of respiration is relatively constant throughout the day. It can be concluded that plants do not rely on sunlight to respire.

- Rate of photosynthesis varies at different times of the day and it occurs at its greatest at noon. It can be concluded that plants rely heavily on sunlight to photosynthesise.

Hope this helps:)