Rough Endoplasmic Reticulum (RER)
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Questions and Answers

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.

<p>False</p> Signup and view all the answers

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

<p>True</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

Proteins are the simplest structural units of protein molecules.

<p>False</p> Signup and view all the answers

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

<p>True</p> Signup and view all the answers

Glycoproteins are formed by the union of proteins with carbohydrates.

<p>True</p> Signup and view all the answers

Nucleoproteins are formed by the union of proteins with lipids.

<p>False</p> Signup and view all the answers

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

<p>True</p> Signup and view all the answers

Globulins are proteins that dissolve in water.

<p>False</p> Signup and view all the answers

Ribosomes are permanently attached to the rough endoplasmic reticulum.

<p>False</p> Signup and view all the answers

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

<p>True</p> Signup and view all the answers

The smooth endoplasmic reticulum is abundant in most cells.

<p>False</p> Signup and view all the answers

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

<p>True</p> Signup and view all the answers

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

<p>True</p> Signup and view all the answers

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

<p>False</p> Signup and view all the answers

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