Which structure is the site of the synthesis of proteins that may be exported from the cell?

synthesis-proteins

#1

Which structure is the site of the synthesis of proteins that may be exported from the cell?

Answer:

  1. A) Rough endoplasmic reticulum

Rough ER is the eukaryotic cell that are interconnected cells which are the primary site of synthesis of proteins.

  1. B) mitochondria

Mitochondria is also known as the power house of the cell which is used for the synthesis of ATP, the ,molecule that generates energy for carrying out most of the chemical reactions. The enzyme that carries out synthesis of ATP, is known as ATP synthase .

  1. A) Choloroplasts

DNA is found in every cell as well as ribosomes are also found in every cell, which would serve as the site of protein synthesis. But thylakoids are specifically found in chloroplasts which serve the purpose of carrying out light dependentreactions of photosynthesis.

  1. A) lysosomes

Lysosomes are cell organelles, that are membrane bound and are present in eukaryotic cells which contain hydrolytic enzymes such as lipase, nucleases and proteases.

  1. B) small and hydrophobic

Since the lipid bilayer is a polar membrane which is made up of two layers of lipids. The outer layer of the lipid layer is composed of hydrophobic tails and hydrophilic head. Since, these are tightly packed, large molecules cannot pass through these layers.