SS 2 Biology 3rd Test
  • 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) equal, equal
D) higher, lower
  • 2. Which of the following states of matter does diffusion occur in?
A) Liquid
B) All of the above
C) Solid
D) Gas
  • 3. Osmosis is the movement of ______ molecules across a selectively permeable membrane.
A) Glucose
B) Carbondioxide
C) Water
D) Oxygen
  • 4. Which of the following phenomena is NOT related to osmosis?
A) Flaccidity
B) Plasmolysis
C) Haemolysis
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) Turgidity
C) Diffusion
D) Plasmolysis
  • 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) Airborne
B) Waterborne
C) Vector-borne
D) Genetic inheritance
  • 8. HIV stands for:
A) Human Influenza Virus
B) Human Intestinal Virus
C) Human Immunodeficiency 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) UNICEF (United Nations Children's Fund)
B) WHO (World Health Organization)
C) Red Cross Society
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) Photosynthesis
B) Consuming other organisms
C) Decomposing organic matter
D) Chemosynthesis
  • 14. Which of the following represents a trophic level in a food chain?
A) Producers
B) All of the above
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 Energy
C) Pyramid of Biomass
D) Pyramid of Number
  • 16. Plasmolysis occurs when a plant cell:
A) Gains water and becomes turgid
B) Bursts due to excessive water intake
C) None of the above
D) Loses water and becomes flaccid
  • 17. Which of the following is an example of a vector?
A) Fungi causing athlete's foot
B) Mosquito transmitting malaria
C) Virus causing the common cold
D) Bacteria causing food poisoning
  • 18. Which of the following is NOT a way to control vectors?
A) Vaccination
B) Use of insecticides
C) Elimination of breeding sites
D) Use of bed nets
  • 19. Which of the following is NOT a role of the Red Cross Society?
A) Conducting medical research
B) Blood donation and transfusion services
C) Providing humanitarian aid during disasters
D) Promoting health education
  • 20. Decomposers play a crucial role in ecosystems by:
A) Breaking down dead organic matter
B) None of the above
C) Providing food for other organisms
D) Producing oxygen through photosynthesis
  • 21. The first process of glycolysis begins with the phosphorylation of glucose to ......
A) Oxaloacetic acid
B) Acetyl coenzyme A
C) Pyruvic acid
D) glucose -6-phosphate
  • 22. The resting phase of the cell in mitosis is .......
A) Anaphase
B) Metaphase
C) Interphase
D) Telophase
  • 23. Kreb's cycle is also called........
A) Acetyl co A cycle
B) Glycolysis
C) Carboxylic acid 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) Hypertonic
C) Hypnotonic
D) Isotonic
  • 25. The following are factors affecting diffusion except..........
A) Size of container
B) Size of particules
C) Surface area
D) Temperature
  • 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) Chromosomes
B) Endoplasmic reticulum
C) Mitochondria
D) Centrioles
  • 28. In the laboratory, turbidity can be measured with a ..............
A) Speedometry
B) Geiger muller counter
C) Spectrophotometer
D) Turbidometer
  • 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) Coccidiosis
B) Gummosis
C) Trichomoniasis
D) Trypanosomiasis
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