Proteins MCQs

Enzymes are chemically __

Proteins
Carbohydrates
Fatty acids
vitamins

Correct Answer

Proteins

__, of which there are 20, are the foundation of all proteins

Amino acids
Carbohydrates
Fatty acids
salts

Correct Answer

Amino acids

Amino acids, of which there are _, are the foundation of all proteins

12
20
25
45

Correct Answer

20

The genetic information in cells calls for amino acids to link together in a certain order, forming chains called _ chains

Polypeptide
ribose
nucleo
None of these

Correct Answer

Polypeptide

_ are proteins that speed up the rate of chemical reactions.

carbohydrates
Enzymes
Vitamins
Lipids

Correct Answer

Enzymes

the tissue that joins muscles to bones to allow movement is called _ TISSUE

Connective
Muscle
Cardiac
None of these

Correct Answer

Connective

the most abundant protein in animals is?

Keratin
glucagon
Collagen
Cellulose

Correct Answer

Collagen

Connective tissue includes _

Ligaments
Tendons
cartilage
All of these

Correct Answer

All of these

_ is a transport protein found in red blood cells that carries oxygen around the body.

Hemoglobin
Keratin
glucagon
Collagen

Correct Answer

Hemoglobin

A __ molecule is shaped kind of like a three-dimensional four-leaf clover without a stem

Keratin
Hemoglobin
glucagon
Collagen

Correct Answer

Hemoglobin

Heme group in hemoglobin has _ atom in center

Carbon
Iron
sulphur
Nitrogen

Correct Answer

Iron

Every muscle, cell membrane, and enzyme in your body is made from _

proteins
Lipids
Carbohydrates
vitamins

Correct Answer

proteins

Proteins are made from _

Polysaccharides
Fatty acids
amino acids
None of these

Correct Answer

amino acids

__ are made from amino acids

Fats
Carbohydrates
vitamins
Proteins

Correct Answer

Proteins

Your body requires _ amino acids in particular to construct proteins

11
5
9
3

Correct Answer

9

Your body requires nine amino acids in particular to construct proteins, which is why those nine amino acids are referred to as _ amino acids

nonessential
essential
Partially essential
None of these

Correct Answer

essential

Humans can synthesize 11 amino acids from a variety of starting compounds that aren’t necessarily derived from amino acids themselves. Because these amino acids are made in the body, they’re considered _ amino acids

nonessential
essential
Partially essential
None of these

Correct Answer

nonessential

Which of these is a non essential amino acid?

Histidine
Alanine
Isoleucine
Leucine

Correct Answer

Alanine

Which of these is an essential amino acid?

Alanine
Arginine
Asparagine
Isoleucine

Correct Answer

Isoleucine