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) none of the above
C) higher, lower
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) Glucose
B) Oxygen
C) Carbondioxide
D) Water
  • 4. Which of the following phenomena is NOT related to osmosis?
A) Turgidity
B) Haemolysis
C) Flaccidity
D) Plasmolysis
  • 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) Diffusion
C) Osmosis
D) Plasmolysis
  • 6. Which of the following is an example of a beneficial microorganism?
A) Bacteria causing pneumonia
B) Fungi causing athlete's foot
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) Vector-borne
B) Waterborne
C) Genetic inheritance
D) Airborne
  • 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) Fatigue
B) All of the above
C) Persistent cough
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) UNICEF (United Nations Children's Fund)
B) Red Cross Society
C) NMA (National Medical Association)
D) WHO (World Health Organization)
  • 12. Autotrophs are organisms that:
A) Produce their own food
B) None of the above
C) Break down dead organic matter
D) Depend on other organisms for food
  • 13. Heterotrophs obtain their food by:
A) Decomposing organic matter
B) Photosynthesis
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) Secondary consumers
C) Primary consumers
D) Producers
  • 15. The energy flow along trophic levels can be represented by a:
A) Pyramid of Energy
B) Pyramid of Biomass
C) Pyramid of Number
D) All of the above
  • 16. Plasmolysis occurs when a plant cell:
A) Bursts due to excessive water intake
B) None of the above
C) Gains water and becomes turgid
D) Loses water and becomes flaccid
  • 17. Which of the following is an example of a vector?
A) Virus causing the common cold
B) Bacteria causing food poisoning
C) Mosquito transmitting malaria
D) Fungi causing athlete's foot
  • 18. Which of the following is NOT a way to control vectors?
A) Use of bed nets
B) Vaccination
C) Elimination of breeding sites
D) Use of insecticides
  • 19. Which of the following is NOT a role of the Red Cross Society?
A) Promoting health education
B) Conducting medical research
C) Blood donation and transfusion services
D) Providing humanitarian aid during disasters
  • 20. Decomposers play a crucial role in ecosystems by:
A) Providing food for other organisms
B) Producing oxygen through photosynthesis
C) Breaking down dead organic matter
D) None of the above
  • 21. The first process of glycolysis begins with the phosphorylation of glucose to ......
A) Oxaloacetic acid
B) Pyruvic acid
C) Acetyl coenzyme A
D) glucose -6-phosphate
  • 22. The resting phase of the cell in mitosis is .......
A) Metaphase
B) Anaphase
C) Telophase
D) Interphase
  • 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) Isotonic
B) Hypnotonic
C) Hypertonic
D) Hypotonic
  • 25. The following are factors affecting diffusion except..........
A) Temperature
B) Surface area
C) Size of container
D) Size of particules
  • 26. Which of the following cell organelles is responsible for the packaging and distribution of materials?
A) Lysosome
B) Nucleolus
C) Golgi bodies
D) Vacuole
  • 27. .......... contains the DNA which stores genetic traits.
A) Centrioles
B) Mitochondria
C) Chromosomes
D) Endoplasmic reticulum
  • 28. In the laboratory, turbidity can be measured with a ..............
A) Geiger muller counter
B) Speedometry
C) Spectrophotometer
D) Turbidometer
  • 29. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antigens
B) Antibodies
C) Pathogens
D) Vectors
  • 30. Animal diseases caused by protozoa are the following except ......
A) Trichomoniasis
B) Gummosis
C) Coccidiosis
D) Trypanosomiasis
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