Question

Give one key difference between leucoplast and chloroplast.
A. Chloroplast helps in photosynthesis whereas leucoplast helps in storage of starch, lipids and proteins.
B. Chloroplast helps in storage of proteins and starch whereas leucoplast helps in photosynthesis.
C. Chloroplast helps in photosynthesis whereas leucoplast helps in storage of fats.
D. Chloroplast helps in storage of fats whereas leucoplast helps in photosynthesis.

Answer 1

Hint: The plastid is a membrane-bound organelle found in the cells of plants, algae, and some other eukaryotic organisms.
There are four main types of plastids:
Chloroplasts.:- The chloroplast, found only in algal and plant cells, is a cell organelle that produces energy through photosynthesis.
Chromoplasts.:- Chromoplasts function in the synthesis and storage of carotenoid pigments in flowers and fruits, and in certain leaves and roots. These help to store starch, lipids and proteins.
Kinetoplasts.:- A keratoplasty is a plastid that develops from a chloroplast during the senescing of plant foliage. Keratoplasty development is generally seen to be the process of grana being unstacked, loss of thylakoid membranes, and large accumulation of plastoglobuli
Leucoplasts.:- The plastids generally associated with Storage of starch in non green plants.

Complete answer:
The chloroplast, found only in algal and plant cells, is a cell organelle that produces energy through photosynthesis.
Chromoplasts.:- Chromoplasts function in the synthesis and storage of carotenoid pigments in flowers and fruits, and in certain leaves and roots. These help to store starch, lipids and proteins. Hence , this option is correct.
Chloroplast helps in photosynthesis and leucoplast in storage of starch, hence this option is not correct.
Leucoplast is not a fat storage plastid as leucoplast is of three types only leucoplast store fat and not all leucoplast. Hence this option is also incorrect.
Chloroplasts do not help to store fat and leucoplasts also do not help in photosynthesis hence this option is also incorrect.
Our required Ans is option a that is Chloroplast helps in photosynthesis whereas leucoplast helps in storage of starch, lipids and proteins.

Note: Leucoplasts are of three types:
Amyloplasts – they store and synthesize starch.
Portionless – portionless helps in storing the proteins
Leucoplasts -Leucoplasts helps in storing fats and oils that are needed by the plant.