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