Science Notes

BIOLOGY PART 3 15 Biology multiple-choice questions (MCQs)along with their Answers  21. **Which disease is caused by the deficiency of vitamin C?**     - A) Scurvy     - B) Rickets     - C) Beriberi     - D) Pellagra     - **Answer: A) Scurvy** 22. **Which process allows plants to convert sunlight into energy?**     - A) Photosynthesis     - B) Respiration     - C) Fermentation     - D) Transpiration     - **Answer: A) Photosynthesis** 23. **Which blood vessel carries oxygenated blood from the lungs to the heart?**     - A) Vein     - B) Artery     - C) Capillary     - D) Pulmonary vein     - **Answer: D) Pulmonary vein** 24. **Which disease is caused by the Plasmodium parasite transmitt...

Biology 12 McQ Here are *12 Biology Multiple Choice Questions (MCQs)** along with their answers: 36. **What is the smallest unit of life?**     - A) Cell     - B) Tissue     - C) Organ     - D) Organism     - **Answer: A) Cell** 37. **Which disease is caused by the deficiency of vitamin C?**     - A) Scurvy     - B) Rickets     - C) Beriberi     - D) Pellagra     - **Answer: A) Scurvy** 38. **Which gas is responsible for the greenhouse effect on Earth?**     - A) Oxygen     - B) Nitrogen     - C) Carbon dioxide     - D) Hydrogen     - **Answer: C) Carbon dioxide** 39. **Which blood vessel carries oxygenated blood from the lungs to the heart?**     - A) Vein   ...

Biology Quiz  Part 2  11. **Which structure in the cell is responsible for organizing the mitotic spindle?**  - A) Nucleolus  - B) Centrosome  - C) Lysosome  - D) Peroxisome  - **Answer: B) Centrosome** 12. **What type of bond holds the two strands of DNA together?**  - A) Ionic bond  - B) Covalent bond  - C) Hydrogen bond  - D) Peptide bond  - **Answer: C) Hydrogen bond** 13. **Which part of the plant is responsible for water absorption from the soil?**  - A) Stem  - B) Leaves  - C) Roots  - D) Flowers  - **Answer: C) Roots** 14. **What is the name of the pigment that gives leaves their green color?**  - A) Chlorophyll  - B) Carotene  - C) Anthocyanin  - D) Xanthophyll  - **Answer: A) Chlorophyll** 15. **In which cellular organelle does cellular respiration occur?**  - A) Chloroplast  - B) Nucleus  - C) Mitochondria  - D) Ribosome  - **Answe...