Question

Spherosomes are involved in
A)Utilisation of alcohol
B)Storage of fat
C)Synthesis and storage of fat
D)Synthesis and storage of carbohydrate

Answer 1

It is a small single membrane bound organelle. They are small spherical vesicles. They are involved in storage and synthesis functions. It is mostly found in the endosperm of the oil seeds.

Complete answer:
Spherosomes can be seen under a light microscope after staining as small spherical refractile vesicles. It is a single membrane bound organelle which is derived from the endoplasmic reticulum. The surrounding membrane is a phospholipid monolayer. The oleosin proteins help in stabilising the membrane. The enzymatic proteins that are present help in synthesis and storage of fat.
The lipid constitutes 98% of the spherosomes and the remaining 2% is the proteins. In some cells, the spherosomes function as lysosomes by digesting the waste.

The endoplasmic reticulum serves the purpose of storage of fat. It is also responsible for modification of lipids.

The peroxisomes present in the liver cells help in detoxification of alcohol.

The smooth endoplasmic reticulum also functions in synthesis and storage of carbohydrate. In plant cells carbohydrate is also synthesised by the chloroplast through photosynthesis.

Hence, the correct answer is option (C)

Note: The synthesis of fatty acid mostly occurs in the cytoplasm. The enzymes involved in the synthesis of fatty acid is fatty acid synthase. In animals the major site for the synthesis of fatty acid is adipose tissue and liver. The fat are energy storage molecule so the synthesis of fat is very important.