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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) lower, higher
B) none of the above
C) higher, lower
D) equal, equal
  • 2. Which of the following states of matter does diffusion occur in?
A) Gas
B) Solid
C) All of the above
D) Liquid
  • 3. Osmosis is the movement of ______ molecules across a selectively permeable membrane.
A) Glucose
B) Water
C) Carbondioxide
D) Oxygen
  • 4. Which of the following phenomena is NOT related to osmosis?
A) Turgidity
B) Haemolysis
C) Plasmolysis
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) Plasmolysis
B) Turgidity
C) Osmosis
D) Diffusion
  • 6. Which of the following is an example of a beneficial microorganism?
A) Bacteria causing pneumonia
B) Virus causing the flu
C) Fungi causing athlete's foot
D) Bacteria aiding in digestion
  • 7. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Airborne
B) Genetic inheritance
C) Vector-borne
D) Waterborne
  • 8. HIV stands for:
A) Human Immunodeficiency Virus
B) Human Influenza Virus
C) Human Intestinal Virus
D) Highly Infectious Virus
  • 9. Which of the following is a symptom of HIV?
A) Skin rash
B) Persistent cough
C) All of the above
D) Fatigue
  • 10. The maintenance of good health involves:
A) All of the above
B) Regular exercise
C) Adequate sleep
D) Proper nutrition
  • 11. Which organization is responsible for coordinating international public health efforts?
A) NMA (National Medical Association)
B) UNICEF (United Nations Children's Fund)
C) WHO (World Health Organization)
D) Red Cross Society
  • 12. Autotrophs are organisms that:
A) Depend on other organisms for food
B) None of the above
C) Break down dead organic matter
D) Produce their own food
  • 13. Heterotrophs obtain their food by:
A) Photosynthesis
B) Decomposing organic matter
C) Consuming other organisms
D) Chemosynthesis
  • 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) Pyramid of Biomass
B) Pyramid of Number
C) All of the above
D) Pyramid of Energy
  • 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) Mosquito transmitting malaria
C) Virus causing the common cold
D) Fungi causing athlete's foot
  • 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) Blood donation and transfusion services
B) Promoting health education
C) Providing humanitarian aid during disasters
D) Conducting medical research
  • 20. Decomposers play a crucial role in ecosystems by:
A) None of the above
B) Breaking down dead organic matter
C) Producing oxygen through photosynthesis
D) Providing food for other organisms
  • 21. The first process of glycolysis begins with the phosphorylation of glucose to ......
A) Oxaloacetic acid
B) Pyruvic 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) Tricarboxylic acid cycle
B) Glycolysis
C) Carboxylic 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) Isotonic
B) Hypnotonic
C) Hypertonic
D) Hypotonic
  • 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) Vacuole
B) Lysosome
C) Golgi bodies
D) Nucleolus
  • 27. .......... contains the DNA which stores genetic traits.
A) Chromosomes
B) Centrioles
C) Endoplasmic reticulum
D) Mitochondria
  • 28. In the laboratory, turbidity can be measured with a ..............
A) Spectrophotometer
B) Geiger muller counter
C) Turbidometer
D) Speedometry
  • 29. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Pathogens
B) Vectors
C) Antigens
D) Antibodies
  • 30. Animal diseases caused by protozoa are the following except ......
A) Trichomoniasis
B) Gummosis
C) Coccidiosis
D) Trypanosomiasis
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