A

Question 1

What is the basic building block of proteins?

Answer 1

Amino acids.

Question 2

True or False: Enzymes are proteins that catalyze biochemical reactions.

Answer 2

True.

Question 3

Fill in the blank: The primary energy currency of cells is ______.

Answer 3

ATP (adenosine triphosphate).

Question 4

What process converts glucose into pyruvate?

Answer 4

Glycolysis.

Question 5

What are the four main types of biomolecules?

Answer 5

Carbohydrates, lipids, proteins, and nucleic acids.

Question 6

Which molecule carries genetic information?

Answer 6

DNA (deoxyribonucleic acid).

Question 7

What is the role of ribosomes in the cell?

Answer 7

Protein synthesis.

Question 8

Multiple Choice: Which vitamin is essential for blood clotting? A) Vitamin A B) Vitamin K C) Vitamin C D) Vitamin D

Answer 8

B) Vitamin K.

Question 9

What is the function of hemoglobin?

Answer 9

To transport oxygen in the blood.

Question 10

True or False: Lipids are soluble in water.

Answer 10

False.

Question 11

Fill in the blank: The process by which DNA is copied into RNA is called ______.

Answer 11

Transcription.

Question 12

What is the primary function of the mitochondria?

Answer 12

Energy production through ATP synthesis.

Question 13

What type of bond connects amino acids in a protein?

Answer 13

Peptide bond.

Question 14

Multiple Choice: Which of the following is a monosaccharide? A) Sucrose B) Glucose C) Lactose D) Starch

Answer 14

B) Glucose.

Question 15

What is the role of enzymes in biochemical reactions?

Answer 15

To lower the activation energy.

Question 16

True or False: All enzymes are specific to a single substrate.

Answer 16

True.

Question 17

Fill in the blank: The ______ is the functional unit of the kidney that filters blood.

Answer 17

Nephron.

Question 18

What is the primary structure of a protein?

Answer 18

The sequence of amino acids.

Question 19

Which organ is primarily responsible for detoxifying harmful substances in the body?

Answer 19

Liver.

Question 20

Multiple Choice: Which of the following is NOT a lipid? A) Cholesterol B) Triglycerides C) Insulin D) Phospholipids

Answer 20

C) Insulin.

Question 21

What is the main purpose of the citric acid cycle?

Answer 21

To generate energy through the oxidation of acetyl-CoA.

Question 22

True or False: Nucleic acids include both DNA and RNA.

Answer 22

True.

Question 23

Fill in the blank: The ______ is the site of photosynthesis in plant cells.

Answer 23

Chloroplast.

Question 24

What is a substrate in the context of enzymatic reactions?

Answer 24

The reactant molecule that an enzyme acts upon.

Question 25

Multiple Choice: Which enzyme is responsible for breaking down hydrogen peroxide? A) Catalase B) Amylase C) Lipase D) Lactase

Answer 25

A) Catalase.

Question 26

What is the primary function of cholesterol in the body?

Answer 26

To maintain cell membrane structure and fluidity.

Question 27

True or False: Glycogen is the storage form of glucose in animals.

Answer 27

True.

Question 28

Fill in the blank: The ______ is the powerhouse of the cell.

Answer 28

Mitochondria.