100 BIOLOGY AND PHYSICS MCQS FOR MCAT WITH ANSWER
KEYS
Biology MCQs for MCAT:
PART 1
1. Which of the following organelles is responsible for cellular respiration and ATP production?
a) Chloroplast
b) Nucleus
c) Mitochondria
d) Golgi apparatus
2. In which phase of mitosis do the sister chromatids separate and move to opposite poles?
a) Prophase
b) Metaphase
c) Anaphase
d) Telophase
3. Which of the following blood vessels carries oxygenated blood from the lungs to the heart?
a) Pulmonary vein
b) Pulmonary artery
c) Aorta
d) Superior vena cava
4. Which enzyme is responsible for breaking down starch into maltose in the mouth?
,a) Amylase
b) Protease
c) Lipase
d) Peptidase
5. The Krebs cycle occurs in which part of the eukaryotic cell?
a) Cytosol
b) Nucleus
c) Mitochondria
d) Endoplasmic reticulum
6. Which of the following hormones is responsible for regulating blood glucose levels?
a) Insulin
b) Glucagon
c) Estrogen
d) Testosterone
7. Which type of immunity is acquired through vaccination?
a) Passive immunity
b) Innate immunity
c) Active immunity
d) Adaptive immunity
8. What is the function of the alveoli in the respiratory system?
a) Filtration of blood
b) Production of mucus
c) Gas exchange
d) Storage of oxygen
, 9. Which of the following is the primary function of the nephron in the kidney?
a) Filtration of blood
b) Production of urine
c) Storage of waste products
d) Absorption of water
10. In which phase of the cell cycle does DNA replication occur?
a) G1 phase
b) S phase
c) G2 phase
d) M phase
11. Which of the following is the smallest unit of life?
a) Cell
b) Tissue
c) Organ
d) Organism
12. Which of the following is a sex-linked genetic disorder characterized by a lack of blood clotting
factors?
a) Cystic fibrosis
b) Hemophilia
c) Down syndrome
d) Huntington's disease
13. What is the function of the enzyme DNA polymerase during DNA replication?
a) Unzipping the double helix
b) Adding nucleotides to the new strand
c) Proofreading the new DNA strand
KEYS
Biology MCQs for MCAT:
PART 1
1. Which of the following organelles is responsible for cellular respiration and ATP production?
a) Chloroplast
b) Nucleus
c) Mitochondria
d) Golgi apparatus
2. In which phase of mitosis do the sister chromatids separate and move to opposite poles?
a) Prophase
b) Metaphase
c) Anaphase
d) Telophase
3. Which of the following blood vessels carries oxygenated blood from the lungs to the heart?
a) Pulmonary vein
b) Pulmonary artery
c) Aorta
d) Superior vena cava
4. Which enzyme is responsible for breaking down starch into maltose in the mouth?
,a) Amylase
b) Protease
c) Lipase
d) Peptidase
5. The Krebs cycle occurs in which part of the eukaryotic cell?
a) Cytosol
b) Nucleus
c) Mitochondria
d) Endoplasmic reticulum
6. Which of the following hormones is responsible for regulating blood glucose levels?
a) Insulin
b) Glucagon
c) Estrogen
d) Testosterone
7. Which type of immunity is acquired through vaccination?
a) Passive immunity
b) Innate immunity
c) Active immunity
d) Adaptive immunity
8. What is the function of the alveoli in the respiratory system?
a) Filtration of blood
b) Production of mucus
c) Gas exchange
d) Storage of oxygen
, 9. Which of the following is the primary function of the nephron in the kidney?
a) Filtration of blood
b) Production of urine
c) Storage of waste products
d) Absorption of water
10. In which phase of the cell cycle does DNA replication occur?
a) G1 phase
b) S phase
c) G2 phase
d) M phase
11. Which of the following is the smallest unit of life?
a) Cell
b) Tissue
c) Organ
d) Organism
12. Which of the following is a sex-linked genetic disorder characterized by a lack of blood clotting
factors?
a) Cystic fibrosis
b) Hemophilia
c) Down syndrome
d) Huntington's disease
13. What is the function of the enzyme DNA polymerase during DNA replication?
a) Unzipping the double helix
b) Adding nucleotides to the new strand
c) Proofreading the new DNA strand
