Types of Proteins in Biology

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Questions and Answers

What do simple proteins produce upon hydrolysis?

Only amino acids (correct)

Non-protein compounds

Amino acids and fatty acids

Polypeptides and amino acids

What distinguishes compound proteins from simple proteins?

Compound proteins contain amino acids only

Compound proteins do not contain any non-protein parts

Compound proteins produce multiple types of amino acids upon hydrolysis

Compound proteins consist of protein and non-protein components (correct)

What are derived proteins primarily formed from?

Compound proteins only

Degraded simple and compound proteins (correct)

Simple proteins only

Only non-protein sources

Which statement about simple and compound proteins is accurate?

Simple proteins are composed only of amino acids Signup and view all the answers

Which substance does NOT have a known binding site mentioned?

Carbohydrate Signup and view all the answers

During hydrolysis, what would NOT be a product of simple proteins?

Polysaccharides Signup and view all the answers

What is a common feature of both Zein of corn and Glutenin?

They have supportive properties. Signup and view all the answers

Which of the following is incorrectly associated?

Milk (lacto-) - non-supportive Signup and view all the answers

Which of the following pairs correctly describes a characteristic relationship?

Glutenin - binds to nucleic Signup and view all the answers

Which binding site is specifically related to a dairy product?

Milk (lacto-) Signup and view all the answers

What role does acid play in the human body?

It is essential for the synthesis of hemoglobin. Signup and view all the answers

Which of the following statements about acid in plants is true?

It has protective functions against pests. Signup and view all the answers

Which of the following is a source of acid that is considered deficient in certain crops?

Wheat Signup and view all the answers

Which option represents a function of acid in salmon?

It contributes to blood oxygen transport. Signup and view all the answers

Which statement about the presence of acid in hemoglobin is accurate?

Acid plays a crucial role in stabilizing the hemoglobin structure. Signup and view all the answers

Which component is primarily classified as a main protein associated with cholesterol transport?

LDL Signup and view all the answers

Which of the following proteins is formed in association with zinc?

Protein + RNA in milk Signup and view all the answers

Which type of proteins involve a metal cofactor in their structure?

Flavo-proteins Signup and view all the answers

What role do antibodies play in the immune response?

Neutralizing pathogens Signup and view all the answers

Which lipoprotein is primarily associated with the transport of triglycerides in the blood?

HDL Signup and view all the answers

What role does ferritin primarily serve in the body?

Storing and releasing iron Signup and view all the answers

Which vitamin is associated with forming cofactors like FAD and FMN?

Vitamin B2 Signup and view all the answers

Which structural characteristic of proteins helps them transport lipids in blood?

Presence of OH group Signup and view all the answers

What is the primary characteristic of mucin found in the gastrointestinal tract?

It provides a protective barrier. Signup and view all the answers

Which component is not directly involved in protein synthesis?

Ferritin Signup and view all the answers

Study Notes

Protein Types

Simple proteins: Hydrolyze into only amino acids.
Compound proteins: Consist of a protein part and a non-protein part.
Derived proteins: Formed from the breakdown of simple or compound proteins.

Compound Protein Examples

Nucleoproteins: Bind to nucleic acid, with supportive and protective functions.
- Found in human body, milk, muscle, and salmon.
- Examples include hemoglobin (main protein in blood), insulin, antibodies, LDL, HDL, ribosomes, and ferritin (iron storage protein).
Phosphoproteins: Protein + phosphoric acid.
- Examples include casein (milk protein) and glutenin (wheat protein).
Flavo-proteins: Protein + FAD or FMN (yellow color).
- FAD/FMN is attached to the protein via the OH group.
- Responsible for lipid transport in blood.
Glycoproteins: Protein + carbohydrate.
- Examples include blood group antigens, mucin (in the gastrointestinal tract), and zein (corn protein).

Noteworthy Points

Zein: Found in maize but deficient in certain amino acids.
Glutenin: Found in wheat.
Casein: Found in milk.
Lactalbumin: Found in milk, along with zinc.

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Description

This quiz explores the different types of proteins, including simple, compound, and derived proteins. You will learn about various examples of compound proteins, such as nucleoproteins, phosphoproteins, flavo-proteins, and glycoproteins, along with their functions and roles in the body.