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