SS 2 Biology 3rd Test
  • 1. Diffusion is the movement of particles from an area of ______ concentration to an area of ______ concentration.
A) lower, higher
B) none of the above
C) equal, equal
D) higher, lower
  • 2. Which of the following states of matter does diffusion occur in?
A) Liquid
B) All of the above
C) Solid
D) Gas
  • 3. Osmosis is the movement of ______ molecules across a selectively permeable membrane.
A) Oxygen
B) Water
C) Glucose
D) Carbondioxide
  • 4. Which of the following phenomena is NOT related to osmosis?
A) Turgidity
B) Flaccidity
C) Plasmolysis
D) Haemolysis
  • 5. The process of water moving from an area of lower solute concentration to an area of higher solute concentration is called:
A) Osmosis
B) Plasmolysis
C) Turgidity
D) Diffusion
  • 6. Which of the following is an example of a beneficial microorganism?
A) Virus causing the flu
B) Bacteria causing pneumonia
C) Bacteria aiding in digestion
D) Fungi causing athlete's foot
  • 7. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Airborne
B) Genetic inheritance
C) Vector-borne
D) Waterborne
  • 8. HIV stands for:
A) Human Immunodeficiency Virus
B) Highly Infectious Virus
C) Human Intestinal Virus
D) Human Influenza Virus
  • 9. Which of the following is a symptom of HIV?
A) Fatigue
B) All of the above
C) Persistent cough
D) Skin rash
  • 10. The maintenance of good health involves:
A) Adequate sleep
B) Regular exercise
C) Proper nutrition
D) All of the above
  • 11. Which organization is responsible for coordinating international public health efforts?
A) UNICEF (United Nations Children's Fund)
B) WHO (World Health Organization)
C) NMA (National Medical Association)
D) Red Cross Society
  • 12. Autotrophs are organisms that:
A) Produce their own food
B) None of the above
C) Break down dead organic matter
D) Depend on other organisms for food
  • 13. Heterotrophs obtain their food by:
A) Consuming other organisms
B) Chemosynthesis
C) Decomposing organic matter
D) Photosynthesis
  • 14. Which of the following represents a trophic level in a food chain?
A) Primary consumers
B) Secondary consumers
C) Producers
D) All of the above
  • 15. The energy flow along trophic levels can be represented by a:
A) Pyramid of Biomass
B) Pyramid of Energy
C) Pyramid of Number
D) All of the above
  • 16. Plasmolysis occurs when a plant cell:
A) Loses water and becomes flaccid
B) None of the above
C) Bursts due to excessive water intake
D) Gains water and becomes turgid
  • 17. Which of the following is an example of a vector?
A) Mosquito transmitting malaria
B) Bacteria causing food poisoning
C) Virus causing the common cold
D) Fungi causing athlete's foot
  • 18. Which of the following is NOT a way to control vectors?
A) Elimination of breeding sites
B) Use of bed nets
C) Use of insecticides
D) Vaccination
  • 19. Which of the following is NOT a role of the Red Cross Society?
A) Conducting medical research
B) Promoting health education
C) Providing humanitarian aid during disasters
D) Blood donation and transfusion services
  • 20. Decomposers play a crucial role in ecosystems by:
A) Breaking down dead organic matter
B) Producing oxygen through photosynthesis
C) Providing food for other organisms
D) None of the above
  • 21. The first process of glycolysis begins with the phosphorylation of glucose to ......
A) glucose -6-phosphate
B) Pyruvic acid
C) Acetyl coenzyme A
D) Oxaloacetic acid
  • 22. The resting phase of the cell in mitosis is .......
A) Telophase
B) Interphase
C) Metaphase
D) Anaphase
  • 23. Kreb's cycle is also called........
A) Acetyl co A cycle
B) Glycolysis
C) Tricarboxylic acid cycle
D) Carboxylic acid cycle
  • 24. When the surrounding solution is concentrated that the solution in the cell, the solution is said to be .........
A) Hypnotonic
B) Hypotonic
C) Hypertonic
D) Isotonic
  • 25. The following are factors affecting diffusion except..........
A) Size of particules
B) Size of container
C) Temperature
D) Surface area
  • 26. Which of the following cell organelles is responsible for the packaging and distribution of materials?
A) Vacuole
B) Nucleolus
C) Lysosome
D) Golgi bodies
  • 27. .......... contains the DNA which stores genetic traits.
A) Centrioles
B) Mitochondria
C) Endoplasmic reticulum
D) Chromosomes
  • 28. In the laboratory, turbidity can be measured with a ..............
A) Turbidometer
B) Spectrophotometer
C) Geiger muller counter
D) Speedometry
  • 29. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Pathogens
B) Antibodies
C) Vectors
D) Antigens
  • 30. Animal diseases caused by protozoa are the following except ......
A) Trypanosomiasis
B) Coccidiosis
C) Gummosis
D) Trichomoniasis
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