A) endoplasmic reticulum
B) mitochondria
C) chloroplast
D) lysosomes
Correct Answer: A
Solution :
The synthesis of lipids and lipoproteins is associated with endoplasmic reticulum. It was named by Porter in 1953. Depending upon the presence of ribosomes, the ER has been categorised into two types. Smooth or Agranular Endoplasmic reticulum-It consists mainly of tubules and vesicles. It is well developed in the muscle cells, adipose tissue cells etc. It synthesizes and secretes steroids. It also takes part in synthesis of vitamins, carbohydrates etc. Rough or Granular Endoplasmic Reticulum-It consists of cistemae. It is abundant in cells engaged in production and excretion of proteins. The HER is basophilic due to the presence of ribosomes. The ribosomes are attached to ER through hydrophobic interaction.
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