Question

different type of plastids and their functions

Answer 1

Answer: PLASTIDS are of three types:

1) Leucoplast : 1. They are colourless a) Aleuroplast -> store protein eg Maize seed

b) Eialoplast -> store fats eg Caster seed

c) Amyloplast -> store carbohydrate eg Potato Tuber

2) Chromoplast: 1) posses carotenoids

2) they are coloured

3) Chloroplasts

1) Trimembraned structure

2)It is semiautonomous organelle because it posses it's own DNA, 70's Ribosomes and ATP synthetase

3) Chloroplast posses outer and inner membrane. The third membrane of chloroplast forms a sad like structure called thylakoids

4) These thylakoids posses photosystems that are involved in light reaction of photosynthesis

5) The jell like fluid present inside the chloroplast is known as stroma

6) Strong is involved in dark reaction posses double stranded circular DNA 70's Ribosomes and starch granules

7) Thylakoids lie one upon the other and form granum. All the granum present in chloroplast is know as grana

8) Chloroplast follow endosymboint theory that is they are modified cynobacteria