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