BPI HOME ENERGY PROFESSIONAL (HEP) ENERGY
AUDITOR EXAMINATION 300 COMPLETE QUESTIONS
AND ANSWERS|2026 UPDATES|WITH COMPLETE
SOLUTIONS
BIOLOGY (Questions 1-75)
1. Which organelle is known as the "powerhouse of the cell"?
A) Ribosome
B) Nucleus
C) Mitochondria
D) Golgi apparatus
Correct Answer: C
Rationale: Mitochondria are the site of cellular respiration, where ATP (energy) is
produced.
2. What is the functional unit of the kidney?
A) Neuron
B) Nephron
C) Alveolus
,D) Villus
Correct Answer: B
Rationale: Nephrons are the microscopic filtering units in the kidneys that regulate
water and soluble substances in the blood.
3. Which blood type is the universal donor?
A) Type A
B) Type B
C) Type AB
D) Type O
Correct Answer: D
Rationale: Type O negative blood lacks A, B, and Rh antigens, making it safe for
transfusion to any other blood type.
4. What is the primary function of stomata in plants?
A) Photosynthesis
B) Gas exchange
C) Transport of water
D) Absorption of minerals
Correct Answer: B
Rationale: Stomata are tiny pores on leaves that allow for the exchange of oxygen
and carbon dioxide, as well as water vapor.
5. The human heart has how many chambers?
,A) 2
B) 3
C) 4
D) 5
Correct Answer: C
Rationale: The human heart has four chambers: two atria (upper) and two
ventricles (lower).
6. Which of the following is a nucleic acid?
A) Glucose
B) Amino acid
C) DNA
D) Fatty acid
Correct Answer: C
Rationale: DNA (deoxyribonucleic acid) is a nucleic acid that stores genetic
information.
7. What is the process by which plants make their own food?
A) Respiration
B) Fermentation
C) Photosynthesis
D) Transpiration
Correct Answer: C
, Rationale: Photosynthesis is the process where plants use sunlight, water, and
carbon dioxide to create glucose and oxygen.
8. Which organ filters blood in the human body?
A) Liver
B) Kidney
C) Heart
D) Lungs
Correct Answer: B
Rationale: The kidneys filter waste products from the blood to form urine.
9. What is the largest organ in the human body?
A) Liver
B) Skin
C) Heart
D) Brain
Correct Answer: B
Rationale: The skin is the largest organ by both weight and surface area.
10. The basic unit of life is the:
A) Tissue
B) Organ
C) Cell
AUDITOR EXAMINATION 300 COMPLETE QUESTIONS
AND ANSWERS|2026 UPDATES|WITH COMPLETE
SOLUTIONS
BIOLOGY (Questions 1-75)
1. Which organelle is known as the "powerhouse of the cell"?
A) Ribosome
B) Nucleus
C) Mitochondria
D) Golgi apparatus
Correct Answer: C
Rationale: Mitochondria are the site of cellular respiration, where ATP (energy) is
produced.
2. What is the functional unit of the kidney?
A) Neuron
B) Nephron
C) Alveolus
,D) Villus
Correct Answer: B
Rationale: Nephrons are the microscopic filtering units in the kidneys that regulate
water and soluble substances in the blood.
3. Which blood type is the universal donor?
A) Type A
B) Type B
C) Type AB
D) Type O
Correct Answer: D
Rationale: Type O negative blood lacks A, B, and Rh antigens, making it safe for
transfusion to any other blood type.
4. What is the primary function of stomata in plants?
A) Photosynthesis
B) Gas exchange
C) Transport of water
D) Absorption of minerals
Correct Answer: B
Rationale: Stomata are tiny pores on leaves that allow for the exchange of oxygen
and carbon dioxide, as well as water vapor.
5. The human heart has how many chambers?
,A) 2
B) 3
C) 4
D) 5
Correct Answer: C
Rationale: The human heart has four chambers: two atria (upper) and two
ventricles (lower).
6. Which of the following is a nucleic acid?
A) Glucose
B) Amino acid
C) DNA
D) Fatty acid
Correct Answer: C
Rationale: DNA (deoxyribonucleic acid) is a nucleic acid that stores genetic
information.
7. What is the process by which plants make their own food?
A) Respiration
B) Fermentation
C) Photosynthesis
D) Transpiration
Correct Answer: C
, Rationale: Photosynthesis is the process where plants use sunlight, water, and
carbon dioxide to create glucose and oxygen.
8. Which organ filters blood in the human body?
A) Liver
B) Kidney
C) Heart
D) Lungs
Correct Answer: B
Rationale: The kidneys filter waste products from the blood to form urine.
9. What is the largest organ in the human body?
A) Liver
B) Skin
C) Heart
D) Brain
Correct Answer: B
Rationale: The skin is the largest organ by both weight and surface area.
10. The basic unit of life is the:
A) Tissue
B) Organ
C) Cell
