Kaplan Science Readiness Test (A&P,
Biology, Chemistry basics) Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which organelle is primarily responsible for ATP production in
eukaryotic cells?
A. Nucleus
B. Mitochondrion
C. Ribosome
D. Golgi apparatus
The mitochondrion is the site of cellular respiration where ATP is
produced through oxidative phosphorylation, making it the primary
energy-producing organelle.
2. What is the main function of red blood cells?
A. Immune defense
B. Oxygen transport
, C. Blood clotting
D. Hormone production
Red blood cells contain hemoglobin, which binds oxygen and
transports it from the lungs to body tissues.
3. Which bond involves the sharing of electrons between atoms?
A. Ionic bond
B. Covalent bond
C. Hydrogen bond
D. Metallic bond
Covalent bonds form when atoms share electrons to achieve stable
electron configurations.
4. What is the primary function of the kidneys?
A. Digest proteins
B. Produce insulin
C. Filter blood and regulate fluid balance
D. Store bile
The kidneys filter waste products from the blood and regulate water,
electrolyte, and acid-base balance.
5. Which molecule stores genetic information?
A. Lipid
B. Protein
C. DNA
D. Glucose
, DNA contains the genetic instructions necessary for the development
and functioning of living organisms.
6. What is the pH of a neutral solution?
A. 0
B. 7
C. 7
D. 14
A pH of 7 represents neutrality, where hydrogen ion concentration
equals hydroxide ion concentration.
7. Which part of the brain controls balance and coordination?
A. Cerebrum
B. Medulla
C. Cerebellum
D. Hypothalamus
The cerebellum is responsible for motor control, balance, and
coordination of voluntary movements.
8. What is the basic unit of life?
A. Atom
B. Tissue
C. Cell
D. Organ
The cell is the smallest structural and functional unit of all living
organisms.
, 9. Which system is responsible for transporting nutrients and oxygen?
A. Nervous system
B. Circulatory system
C. Endocrine system
D. Respiratory system
The circulatory system distributes oxygen, nutrients, and hormones
throughout the body via blood.
10. What type of macromolecule are enzymes?
A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic acids
Enzymes are proteins that act as biological catalysts to speed up
chemical reactions.
11. What is the atomic number of an element equal to?
A. Number of neutrons
B. Number of protons
C. Number of electrons plus neutrons
D. Atomic mass
The atomic number represents the number of protons in the nucleus
of an atom.
12. Which blood type is known as the universal donor?
A. AB
Biology, Chemistry basics) Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which organelle is primarily responsible for ATP production in
eukaryotic cells?
A. Nucleus
B. Mitochondrion
C. Ribosome
D. Golgi apparatus
The mitochondrion is the site of cellular respiration where ATP is
produced through oxidative phosphorylation, making it the primary
energy-producing organelle.
2. What is the main function of red blood cells?
A. Immune defense
B. Oxygen transport
, C. Blood clotting
D. Hormone production
Red blood cells contain hemoglobin, which binds oxygen and
transports it from the lungs to body tissues.
3. Which bond involves the sharing of electrons between atoms?
A. Ionic bond
B. Covalent bond
C. Hydrogen bond
D. Metallic bond
Covalent bonds form when atoms share electrons to achieve stable
electron configurations.
4. What is the primary function of the kidneys?
A. Digest proteins
B. Produce insulin
C. Filter blood and regulate fluid balance
D. Store bile
The kidneys filter waste products from the blood and regulate water,
electrolyte, and acid-base balance.
5. Which molecule stores genetic information?
A. Lipid
B. Protein
C. DNA
D. Glucose
, DNA contains the genetic instructions necessary for the development
and functioning of living organisms.
6. What is the pH of a neutral solution?
A. 0
B. 7
C. 7
D. 14
A pH of 7 represents neutrality, where hydrogen ion concentration
equals hydroxide ion concentration.
7. Which part of the brain controls balance and coordination?
A. Cerebrum
B. Medulla
C. Cerebellum
D. Hypothalamus
The cerebellum is responsible for motor control, balance, and
coordination of voluntary movements.
8. What is the basic unit of life?
A. Atom
B. Tissue
C. Cell
D. Organ
The cell is the smallest structural and functional unit of all living
organisms.
, 9. Which system is responsible for transporting nutrients and oxygen?
A. Nervous system
B. Circulatory system
C. Endocrine system
D. Respiratory system
The circulatory system distributes oxygen, nutrients, and hormones
throughout the body via blood.
10. What type of macromolecule are enzymes?
A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic acids
Enzymes are proteins that act as biological catalysts to speed up
chemical reactions.
11. What is the atomic number of an element equal to?
A. Number of neutrons
B. Number of protons
C. Number of electrons plus neutrons
D. Atomic mass
The atomic number represents the number of protons in the nucleus
of an atom.
12. Which blood type is known as the universal donor?
A. AB
