SS 2 Biology 3rd Test
  • 1. Diffusion is the movement of particles from an area of ______ concentration to an area of ______ concentration.
A) higher, lower
B) equal, equal
C) none of the above
D) lower, higher
  • 2. Which of the following states of matter does diffusion occur in?
A) Liquid
B) Gas
C) All of the above
D) Solid
  • 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) Flaccidity
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) Plasmolysis
B) Diffusion
C) Turgidity
D) Osmosis
  • 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) Airborne
B) Genetic inheritance
C) Waterborne
D) Vector-borne
  • 8. HIV stands for:
A) Human Intestinal Virus
B) Highly Infectious Virus
C) Human Influenza Virus
D) Human Immunodeficiency Virus
  • 9. Which of the following is a symptom of HIV?
A) Persistent cough
B) Fatigue
C) All of the above
D) Skin rash
  • 10. The maintenance of good health involves:
A) Adequate sleep
B) Proper nutrition
C) All of the above
D) Regular exercise
  • 11. Which organization is responsible for coordinating international public health efforts?
A) Red Cross Society
B) WHO (World Health Organization)
C) UNICEF (United Nations Children's Fund)
D) NMA (National Medical Association)
  • 12. Autotrophs are organisms that:
A) Depend on other organisms for food
B) Break down dead organic matter
C) None of the above
D) Produce their own food
  • 13. Heterotrophs obtain their food by:
A) Photosynthesis
B) Consuming other organisms
C) Decomposing organic matter
D) Chemosynthesis
  • 14. Which of the following represents a trophic level in a food chain?
A) Secondary consumers
B) Primary consumers
C) Producers
D) All of the above
  • 15. The energy flow along trophic levels can be represented by a:
A) Pyramid of Energy
B) All of the above
C) Pyramid of Biomass
D) Pyramid of Number
  • 16. Plasmolysis occurs when a plant cell:
A) Loses water and becomes flaccid
B) None of the above
C) Gains water and becomes turgid
D) Bursts due to excessive water intake
  • 17. Which of the following is an example of a vector?
A) Bacteria causing food poisoning
B) Virus causing the common cold
C) Mosquito transmitting malaria
D) Fungi causing athlete's foot
  • 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) Conducting medical research
B) Providing humanitarian aid during disasters
C) Blood donation and transfusion services
D) Promoting health education
  • 20. Decomposers play a crucial role in ecosystems by:
A) Producing oxygen through photosynthesis
B) None of the above
C) Providing food for other organisms
D) Breaking down dead organic matter
  • 21. The first process of glycolysis begins with the phosphorylation of glucose to ......
A) Pyruvic acid
B) Oxaloacetic acid
C) glucose -6-phosphate
D) Acetyl coenzyme A
  • 22. The resting phase of the cell in mitosis is .......
A) Anaphase
B) Metaphase
C) Telophase
D) Interphase
  • 23. Kreb's cycle is also called........
A) Carboxylic acid cycle
B) Glycolysis
C) Tricarboxylic acid cycle
D) Acetyl co A cycle
  • 24. When the surrounding solution is concentrated that the solution in the cell, the solution is said to be .........
A) Hypotonic
B) Hypnotonic
C) Isotonic
D) Hypertonic
  • 25. The following are factors affecting diffusion except..........
A) Temperature
B) Surface area
C) Size of particules
D) Size of container
  • 26. Which of the following cell organelles is responsible for the packaging and distribution of materials?
A) Lysosome
B) Golgi bodies
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) Turbidometer
B) Spectrophotometer
C) Speedometry
D) Geiger muller counter
  • 29. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antigens
B) Pathogens
C) Antibodies
D) Vectors
  • 30. Animal diseases caused by protozoa are the following except ......
A) Gummosis
B) Coccidiosis
C) Trichomoniasis
D) Trypanosomiasis
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