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) Liquid
B) All of the above
C) Solid
D) Gas
  • 3. Osmosis is the movement of ______ molecules across a selectively permeable membrane.
A) Water
B) Carbondioxide
C) Oxygen
D) Glucose
  • 4. Which of the following phenomena is NOT related to osmosis?
A) Flaccidity
B) Plasmolysis
C) Haemolysis
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) Osmosis
B) Plasmolysis
C) Diffusion
D) Turgidity
  • 6. Which of the following is an example of a beneficial microorganism?
A) Bacteria causing pneumonia
B) Bacteria aiding in digestion
C) Virus causing the flu
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) Waterborne
D) Vector-borne
  • 8. HIV stands for:
A) Highly Infectious Virus
B) Human Intestinal Virus
C) Human Influenza Virus
D) Human Immunodeficiency Virus
  • 9. Which of the following is a symptom of HIV?
A) All of the above
B) Persistent cough
C) Fatigue
D) Skin rash
  • 10. The maintenance of good health involves:
A) Proper nutrition
B) All of the above
C) Adequate sleep
D) Regular exercise
  • 11. Which organization is responsible for coordinating international public health efforts?
A) WHO (World Health Organization)
B) Red Cross Society
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) Produce their own food
C) Break down dead organic matter
D) None of the above
  • 13. Heterotrophs obtain their food by:
A) Decomposing organic matter
B) Chemosynthesis
C) Photosynthesis
D) Consuming other organisms
  • 14. Which of the following represents a trophic level in a food chain?
A) All of the above
B) Secondary consumers
C) Producers
D) Primary consumers
  • 15. The energy flow along trophic levels can be represented by a:
A) Pyramid of Energy
B) All of the above
C) Pyramid of Number
D) Pyramid of Biomass
  • 16. Plasmolysis occurs when a plant cell:
A) Gains water and becomes turgid
B) Bursts due to excessive water intake
C) None of the above
D) Loses water and becomes flaccid
  • 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) 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) Providing humanitarian aid during disasters
B) Promoting health education
C) Conducting medical research
D) Blood donation and transfusion services
  • 20. Decomposers play a crucial role in ecosystems by:
A) Providing food for other organisms
B) Breaking down dead organic matter
C) None of the above
D) Producing oxygen through photosynthesis
  • 21. The first process of glycolysis begins with the phosphorylation of glucose to ......
A) glucose -6-phosphate
B) Acetyl coenzyme A
C) Pyruvic acid
D) Oxaloacetic acid
  • 22. The resting phase of the cell in mitosis is .......
A) Telophase
B) Metaphase
C) Anaphase
D) Interphase
  • 23. Kreb's cycle is also called........
A) Acetyl co A cycle
B) Carboxylic acid 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) Hypnotonic
B) Isotonic
C) Hypertonic
D) Hypotonic
  • 25. The following are factors affecting diffusion except..........
A) Temperature
B) Size of particules
C) Surface area
D) Size of container
  • 26. Which of the following cell organelles is responsible for the packaging and distribution of materials?
A) Vacuole
B) Golgi bodies
C) Lysosome
D) Nucleolus
  • 27. .......... contains the DNA which stores genetic traits.
A) Centrioles
B) Chromosomes
C) Mitochondria
D) Endoplasmic reticulum
  • 28. In the laboratory, turbidity can be measured with a ..............
A) Speedometry
B) Turbidometer
C) Geiger muller counter
D) Spectrophotometer
  • 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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