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