[ LET 1 ] 2025 BLEPT Reviewer - Biology

2025 BLEPT Reviewer - Biology

1. What is the powerhouse of the cell?

A) Nucleus
B) Mitochondria
C) Chloroplast
D) Ribosome

2. What is the primary pigment responsible for photosynthesis?

A) Hemoglobin
B) Chlorophyll
C) Carotene
D) Melanin

3. Which biomolecule is the main source of energy for living organisms?

A) Proteins
B) Lipids
C) Carbohydrates
D) Nucleic acids

4. What is the function of ribosomes in a cell?

A) DNA replication
B) Protein synthesis
C) Energy production
D) Waste elimination

5. Which type of cell division produces gametes?

A) Mitosis
B) Meiosis
C) Binary fission
D) Budding

6. What is the genetic material found in cells?

A) RNA
B) Protein
C) DNA
D) Lipids

7. What is the main function of the root in plants?

A) Photosynthesis
B) Nutrient absorption
C) Reproduction
D) Protection

8. What organ system is responsible for transporting oxygen and nutrients in the body?

A) Respiratory system
B) Nervous system
C) Circulatory system
D) Digestive system

9. What molecule carries genetic information from one generation to the next?

A) RNA
B) DNA
C) Proteins
D) Lipids

10. Which of the following is NOT a kingdom in biological classification?

A) Plantae
B) Fungi
C) Animalia
D) Virus

11. What is the smallest unit of life?

A) Atom
B) Molecule
C) Cell
D) Tissue

12. What structure in plant cells is responsible for photosynthesis?

A) Mitochondria
B) Nucleus
C) Chloroplast
D) Cell membrane

13. What is the process by which plants lose water through their leaves?

A) Transpiration
B) Photosynthesis
C) Respiration
D) Osmosis

14. What is the term for the movement of molecules from high to low concentration?

A) Osmosis
B) Diffusion
C) Active transport
D) Endocytosis

15. Which organ in the human body is primarily responsible for filtering blood?

A) Liver
B) Heart
C) Kidney
D) Lungs

16. Which macromolecule stores genetic information?

A) Lipids
B) Carbohydrates
C) Proteins
D) Nucleic acids

17. What is the main component of the cell membrane?

A) Protein
B) Phospholipid
C) Carbohydrate
D) Nucleic acid

18. Which system in the body is responsible for transporting hormones?

A) Circulatory system
B) Digestive system
C) Endocrine system
D) Respiratory system

19. What type of blood vessel carries blood away from the heart?

A) Veins
B) Capillaries
C) Arteries
D) Lymphatic vessels

20. What is the function of red blood cells?

A) Fight infections
B) Transport oxygen
C) Clot blood
D) Remove waste products