Proteins

Question 1

What are the building blocks of proteins?

Answer 1

Amino acids

Question 2

True or False: Proteins are one of the four main types of macromolecules.

Answer 2

True

Question 3

Which type of bond links amino acids together in a protein?

Answer 3

Peptide bond

Question 4

Fill in the blank: Proteins are essential for _________ in the body.

Answer 4

growth and repair

Question 5

What is the primary structure of a protein?

Answer 5

The linear sequence of amino acids

Question 6

What determines a protein’s function?

Answer 6

Its three-dimensional structure

Question 7

Multiple choice: Which of the following is NOT a function of proteins? A) Enzymatic activity B) Structural support C) Energy storage D) Hormonal regulation

Answer 7

C) Energy storage

Question 8

True or False: All proteins are enzymes.

Answer 8

False

Question 9

What are the two main types of protein structures?

Answer 9

Fibrous and globular

Question 10

What is denaturation in the context of proteins?

Answer 10

The process where proteins lose their structure due to external stress or conditions

Question 11

Fill in the blank: The sequence of amino acids in a protein is determined by ________.

Answer 11

the gene encoding the protein

Question 12

What are the four levels of protein structure?

Answer 12

Primary, secondary, tertiary, and quaternary

Question 13

Multiple choice: Which of the following amino acids is essential? A) Glycine B) Leucine C) Alanine D) Serine

Answer 13

B) Leucine

Question 14

True or False: Proteins can act as antibodies.

Answer 14

True

Question 15

What is the role of enzymes in biological processes?

Answer 15

To catalyze chemical reactions

Question 16

Fill in the blank: Hemoglobin is an example of a _________ protein.

Answer 16

transport

Question 17

What interaction stabilizes the secondary structure of proteins?

Answer 17

Hydrogen bonds

Question 18

Multiple choice: Which structure is characterized by alpha helices and beta sheets? A) Primary B) Secondary C) Tertiary D) Quaternary

Answer 18

B) Secondary

Question 19

What is the significance of the quaternary structure of proteins?

Answer 19

It involves the assembly of multiple polypeptide chains into a functional protein.

Question 20

True or False: Proteins can serve as hormones.

Answer 20

True

Question 21

What are chaperone proteins?

Answer 21

Proteins that assist in the proper folding of other proteins.

Question 22

Fill in the blank: The specific sequence of amino acids in a protein is referred to as its ________.

Answer 22

primary structure

Question 23

What is the role of the R group in amino acids?

Answer 23

To determine the properties and identity of the amino acid.

Question 24

Multiple choice: Which macromolecule is primarily responsible for genetic information? A) Carbohydrates B) Lipids C) Proteins D) Nucleic acids

Answer 24

D) Nucleic acids

Question 25

True or False: Proteins can be denatured by changes in temperature and pH.

Answer 25

True

Question 26

What is the function of structural proteins?

Answer 26

To provide support and shape to cells and tissues.