Rough Endoplasmic Reticulum (RER)

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18 Questions

Each organ in the body can choose the necessary amino acids to build its own protein.

True

Derived proteins are simple proteins that have not undergone any degradation.

False

Excess amino acids and protein compounds needed for cell growth are stored in the body.

False

Animal sources of proteins include various types of legumes like beans and lentils.

False

Amino acids are the only source of nitrogen necessary for humans or animals.

True

Vegetarian sources of proteins include meat of all kinds, fish, birds, and eggs.

False

Proteins are the simplest structural units of protein molecules.

False

Amino acids from the blood circulation are converted into animal proteins similar to body proteins under the influence of special cellular enzymes.

True

Glycoproteins are formed by the union of proteins with carbohydrates.

True

Nucleoproteins are formed by the union of proteins with lipids.

False

Albumins are proteins that dissolve in water and coagulate when exposed to heat.

True

Globulins are proteins that dissolve in water.

False

Ribosomes are permanently attached to the rough endoplasmic reticulum.

False

A protein-DNA complex is formed when a free ribosome begins translating mRNA for a protein destined for the secretory pathway.

True

The smooth endoplasmic reticulum is abundant in most cells.

False

The rough endoplasmic reticulum synthesizes enzymes for lysosomes and secreted proteins.

True

Cells that secrete lipids, phospholipids, and steroids have an abundant smooth endoplasmic reticulum.

True

The transitional endoplasmic reticulum is a region where the reticulum is entirely smooth.

False

Learn about the rough endoplasmic reticulum (RER) and its role in protein synthesis. Understand how ribosomes are attached to the surface of RER and their continuous state of attachment and separation from the membrane.

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