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