Proteins

Question 1

What are proteins made of?

Answer 1

Amino acids

Question 2

True or False: Proteins play a role in muscle contraction.

Answer 2

True

Question 3

Fill in the blank: The sequence of amino acids in a protein is known as its __________.

Answer 3

primary structure

Question 4

What type of bond links amino acids together?

Answer 4

Peptide bond

Question 5

Which level of protein structure refers to the three-dimensional shape of a protein?

Answer 5

Tertiary structure

Question 6

Multiple Choice: Which of the following is a function of proteins? A) Energy storage B) Catalysis C) Structural support D) All of the above

Answer 6

D) All of the above

Question 7

What is the role of enzymes?

Answer 7

To speed up chemical reactions

Question 8

True or False: Enzymes are a type of protein.

Answer 8

True

Question 9

Fill in the blank: The __________ structure of a protein consists of two or more polypeptide chains.

Answer 9

quaternary

Question 10

What determines the specific function of a protein?

Answer 10

Its unique amino acid sequence

Question 11

Multiple Choice: Which of the following is NOT a protein? A) Hemoglobin B) Insulin C) Cellulose D) Collagen

Answer 11

C) Cellulose

Question 12

What is denaturation?

Answer 12

The process in which a protein loses its structure and function due to external stress.

Question 13

True or False: All proteins are enzymes.

Answer 13

False

Question 14

Fill in the blank: The __________ structure of a protein is characterized by regular patterns like alpha helices and beta sheets.

Answer 14

secondary

Question 15

What is the primary function of hemoglobin?

Answer 15

To transport oxygen in the blood.

Question 16

Multiple Choice: Which amino acid is essential and must be obtained through diet? A) Glycine B) Alanine C) Leucine D) Serine

Answer 16

C) Leucine

Question 17

What role do chaperone proteins play?

Answer 17

They assist in the proper folding of other proteins.

Question 18

True or False: Proteins can act as hormones.

Answer 18

True

Question 19

Fill in the blank: A protein’s __________ is crucial for its interaction with other molecules.

Answer 19

shape

Question 20

What are antibodies?

Answer 20

Proteins produced by the immune system to identify and neutralize foreign objects.

Question 21

Multiple Choice: Which protein is primarily responsible for muscle contraction? A) Actin B) Myosin C) Troponin D) All of the above

Answer 21

D) All of the above

Question 22

What is the significance of the protein folding process?

Answer 22

Proper folding is necessary for proteins to function correctly.

Question 23

True or False: The human body can synthesize all amino acids.

Answer 23

False

Question 24

Fill in the blank: Proteins can be classified as __________ based on their shape.

Answer 24

fibrous or globular

Question 25

What is the role of structural proteins?

Answer 25

To provide support and shape to cells and tissues.

Question 26

Multiple Choice: Which of the following is a globular protein? A) Keratin B) Collagen C) Enzyme D) Silk

Answer 26

C) Enzyme