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Question 1

What are the four main types of biomolecules?

Answer 1

Carbohydrates, lipids, proteins, and nucleic acids.

Question 2

True or False: Proteins are made up of amino acids.

Answer 2

True

Question 3

Fill in the blank: The basic unit of carbohydrates is called a _____ .

Answer 3

monosaccharide

Question 4

What is the primary function of lipids in the body?

Answer 4

Energy storage and forming cell membranes.

Question 5

Which biomolecule serves as the genetic material in organisms?

Answer 5

Nucleic acids (DNA and RNA).

Question 6

Multiple Choice: Which of the following is NOT a protein? A) Enzyme B) Hormone C) Starch D) Antibody

Answer 6

C) Starch

Question 7

What are the two main types of nucleic acids?

Answer 7

DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

Question 8

True or False: All enzymes are proteins.

Answer 8

True

Question 9

What type of bond links amino acids together?

Answer 9

Peptide bond.

Question 10

Fill in the blank: Lipids are generally _____ in water.

Answer 10

hydrophobic

Question 11

What is the role of carbohydrates in living organisms?

Answer 11

Providing energy and structural support.

Question 12

Multiple Choice: Which of the following is a polysaccharide? A) Glucose B) Glycogen C) Fructose D) Sucrose

Answer 12

B) Glycogen

Question 13

What is the structure of DNA?

Answer 13

A double helix.

Question 14

True or False: Fatty acids are the building blocks of nucleic acids.

Answer 14

False

Question 15

What are unsaturated fats?

Answer 15

Fats that contain one or more double bonds in their fatty acid chains.

Question 16

Fill in the blank: The sequence of _____ in DNA determines the genetic information.

Answer 16

nucleotides

Question 17

What is the primary function of RNA?

Answer 17

To transfer genetic information from DNA to proteins.

Question 18

Multiple Choice: Which biomolecule is primarily involved in energy transfer? A) Proteins B) Nucleic Acids C) Carbohydrates D) Lipids

Answer 18

C) Carbohydrates

Question 19

What is a key characteristic of enzymes?

Answer 19

They act as catalysts to speed up chemical reactions.

Question 20

True or False: All biomolecules contain carbon.

Answer 20

True

Question 21

What is the role of cholesterol in the body?

Answer 21

To maintain cell membrane structure and fluidity.

Question 22

Fill in the blank: The basic building blocks of proteins are _____ .

Answer 22

amino acids

Question 23

Multiple Choice: Which of the following is a function of proteins? A) Energy storage B) Catalyzing reactions C) Genetic information D) Structural support

Answer 23

B) Catalyzing reactions

Question 24

What is the process called by which proteins are synthesized from amino acids?

Answer 24

Translation.

Question 25

True or False: Starch is a type of lipid.

Answer 25

False

Question 26

What are the two main categories of nucleotides?

Answer 26

Purines and pyrimidines.

Question 27

What are protein molecules made of?

Answer 27

Protein molecules are made of smaller molecules called amino acids.

Question 28

What forms between amino acids?

Answer 28

Peptide bonds form between amino acids.

Question 29

What is the structure of an amino acid?

Answer 29

An amino acid has a carboxylic acid group, an amino group, a hydrogen atom, and an R group.

Question 30

What determines the properties of individual amino acids?

Answer 30

The properties of individual amino acids are determined by their R groups.

Question 31

What is a polypeptide?

Answer 31

A polypeptide is a chain of many peptide bonds, which constitutes a protein.

Question 32

How many standard amino acids are there?

Answer 32

There are twenty standard amino acids.

Question 33

What are the two classes of amino acids based on R group properties?

Answer 33

Amino acids can be classified as polar or nonpolar based on their R groups.

Question 34

What are negatively charged R groups?

Answer 34

Negatively charged R groups include aspartate and glutamate.

Question 35

What are positively charged R groups?

Answer 35

Positively charged R groups include lysine and arginine.

Question 36

What is the significance of side chains in amino acids?

Answer 36

Side chains, or R groups, differ among amino acids and contribute to their unique properties.