What is the primary building block of proteins?
a) Nucleotides
b) Fatty acids
c) Amino acids
d) Monosaccharides
Answer: c) Amino acids

Which of the following is a carbohydrate?
a) Glucose
b) Cholesterol
c) Insulin
d) Hemoglobin
Answer: a) Glucose

Lipids are primarily used in the body for:
a) Energy storage
b) Genetic information
c) Building muscle
d) Oxygen transport
Answer: a) Energy storage

Which of the following is a polysaccharide?
a) Glucose
b) Fructose
c) Cellulose
d) Sucrose
Answer: c) Cellulose

DNA and RNA are types of:
a) Carbohydrates
b) Proteins
c) Lipids
d) Nucleic acids
Answer: d) Nucleic acids

Enzymes are:
a) Carbohydrates
b) Lipids
c) Proteins
d) Nucleic acids
Answer: c) Proteins

The process by which glucose is broken down to release energy is called:
a) Photosynthesis
b) Glycolysis
c) Fermentation
d) Respiration
Answer: b) Glycolysis

Which molecule is the main source of energy for cellular processes?
a) ATP
b) DNA
c) RNA
d) NADH
Answer: a) ATP

The double helix structure is associated with:
a) DNA
b) RNA
c) Proteins
d) Lipids
Answer: a) DNA

Fats are composed of:
a) Amino acids and nucleotides
b) Glycerol and fatty acids
c) Monosaccharides and disaccharides
d) Phosphate groups and sugars
Answer: b) Glycerol and fatty acids