✅✅ Biology Questions & Answers

1. Which process is primarily responsible for the production of ATP in cells?
   A) Glycolysis
   - B) Photosynthesis
   - C) Cellular respiration
   - D) Fermentation
   - Answer: C)
2. Which of the following structures is found in plant cells but not in animal cells?
   - A) Mitochondria
   - B) Ribosomes
   - C) Cell wall
   - D) Nucleus
   - Answer: C) Cell wall
3. What is the primary function of the ribosome?
   - A) DNA replication
   - B) Protein synthesis
   - C) Lipid synthesis
   - D) Energy production
   - Answer: B) Protein synthesis
4. Which molecule carries genetic information from the nucleus to the cytoplasm?
   - A) DNA
   - B) mRNA
   - C) tRNA
   - D) rRNA
   - Answer: B) mRNA
5. Which phase of mitosis is characterized by the alignment of chromosomes in the center of the cell?
   - A) Prophase
   - B) Metaphase
   - C) Anaphase
   - D) Telophase
   - Answer: B) Metaphase
6. Which of the following is an example of a homozygous genotype?
   - A) Aa
   - B) BB
   - C) AB
   - D) Bb
   - Answer: B) BB
7. Which hormone regulates the levels of glucose in the blood?
   - A) Insulin
   - B) Thyroxine
   - C) Adrenaline
   - D) Estrogen
   - Answer: A) Insulin
8. Which of the following is not a component of the central nervous system?
   - A) Brain
   - B) Spinal cord
   - C) Peripheral nerves
   - D) All of the above are part of the central nervous system
   - Answer: C) Peripheral nerves
9. Which kingdom includes multicellular, photosynthetic organisms?
   - A) Fungi
   - B) Animalia
   - C) Plantae
   - D) Protista
   - Answer: C) Plantae
10. What is the basic unit of structure and function in living organisms?
    - A) Organ
    - B) Cell
    - C) Tissue
    - D) Organ system
    - Answer: B) Cell
11. What is the primary function of chlorophyll in photosynthesis?
    - A) Absorbing water
    - B) Absorbing sunlight
    - C) Producing oxygen
    - D) Producing glucose
    - Answer: B)
12. Which of the following best describes an ecosystem?
    - A) A group of the same species living in a specific area
    - B) A community of organisms and their physical environment interacting together
    - C) The variety of life within a specific habitat
    - D) A single organism and its role in the environment
    - Answer: B)
13. What is the primary role of mitochondria in cells?
    - A) Protein synthesis
    - B) Photosynthesis
    - C) ATP production
    - D) DNA replication
    - Answer: C) ATP production
14. Which type of macromolecule are enzymes?
    - A) Carbohydrates
    - B) Lipids
    - C) Proteins
    - D) Nucleic acids
    - Answer: C) Proteins