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SS 2 Biology 3rd Test
Contributed by: College
  • 1. Diffusion is the movement of particles from an area of ______ concentration to an area of ______ concentration.
A) higher, lower
B) none of the above
C) lower, higher
D) equal, equal
  • 2. Which of the following states of matter does diffusion occur in?
A) All of the above
B) Solid
C) Gas
D) Liquid
  • 3. Osmosis is the movement of ______ molecules across a selectively permeable membrane.
A) Water
B) Oxygen
C) Glucose
D) Carbondioxide
  • 4. Which of the following phenomena is NOT related to osmosis?
A) Haemolysis
B) Plasmolysis
C) Flaccidity
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) Diffusion
C) Plasmolysis
D) Turgidity
  • 6. Which of the following is an example of a beneficial microorganism?
A) Virus causing the flu
B) Fungi causing athlete's foot
C) Bacteria causing pneumonia
D) Bacteria aiding in digestion
  • 7. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Vector-borne
B) Waterborne
C) Airborne
D) Genetic inheritance
  • 8. HIV stands for:
A) Highly Infectious Virus
B) Human Immunodeficiency Virus
C) Human Intestinal Virus
D) Human Influenza Virus
  • 9. Which of the following is a symptom of HIV?
A) Skin rash
B) All of the above
C) Persistent cough
D) Fatigue
  • 10. The maintenance of good health involves:
A) Proper nutrition
B) Adequate sleep
C) Regular exercise
D) All of the above
  • 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) Break down dead organic matter
B) Produce their own food
C) Depend on other organisms for food
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) Primary consumers
D) Producers
  • 15. The energy flow along trophic levels can be represented by a:
A) Pyramid of Number
B) Pyramid of Biomass
C) All of the above
D) Pyramid of Energy
  • 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) Virus causing the common cold
B) Bacteria causing food poisoning
C) Fungi causing athlete's foot
D) Mosquito transmitting malaria
  • 18. Which of the following is NOT a way to control vectors?
A) Use of insecticides
B) Elimination of breeding sites
C) Use of bed nets
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) Promoting health education
D) Blood donation and transfusion services
  • 20. Decomposers play a crucial role in ecosystems by:
A) Producing oxygen through photosynthesis
B) Breaking down dead organic matter
C) None of the above
D) Providing food for other organisms
  • 21. The first process of glycolysis begins with the phosphorylation of glucose to ......
A) Oxaloacetic acid
B) Acetyl coenzyme A
C) glucose -6-phosphate
D) Pyruvic acid
  • 22. The resting phase of the cell in mitosis is .......
A) Interphase
B) Anaphase
C) Telophase
D) Metaphase
  • 23. Kreb's cycle is also called........
A) Carboxylic acid cycle
B) Glycolysis
C) Acetyl co A cycle
D) Tricarboxylic acid 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) Hypertonic
D) Isotonic
  • 25. The following are factors affecting diffusion except..........
A) Size of particules
B) Surface area
C) Temperature
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) Nucleolus
D) Vacuole
  • 27. .......... contains the DNA which stores genetic traits.
A) Mitochondria
B) Centrioles
C) Endoplasmic reticulum
D) Chromosomes
  • 28. In the laboratory, turbidity can be measured with a ..............
A) Turbidometer
B) Spectrophotometer
C) Geiger muller counter
D) Speedometry
  • 29. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antigens
B) Vectors
C) Pathogens
D) Antibodies
  • 30. Animal diseases caused by protozoa are the following except ......
A) Gummosis
B) Coccidiosis
C) Trypanosomiasis
D) Trichomoniasis
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