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SS 2 Biology 1st Term 3rd Test 25/26
Contributed by: College
  • 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) lower, higher
D) higher, lower
  • 2. Which of the following states of matter does diffusion occur in?
A) Solid
B) All of the above
C) Liquid
D) Gas
  • 3. Osmosis is the movement of ______ molecules across a selectively permeable membrane.
A) Water
B) Carbondioxide
C) Oxygen
D) Glucose
  • 4. Which of the following phenomena is NOT related to osmosis?
A) Haemolysis
B) Plasmolysis
C) Turgidity
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) Turgidity
B) Osmosis
C) Diffusion
D) Plasmolysis
  • 6. Which of the following is an example of a beneficial microorganism?
A) Bacteria causing pneumonia
B) Bacteria aiding in digestion
C) Fungi causing athlete's foot
D) Virus causing the flu
  • 7. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Waterborne
B) Vector-borne
C) Airborne
D) Genetic inheritance
  • 8. HIV stands for:
A) Human Intestinal Virus
B) Human Immunodeficiency Virus
C) Highly Infectious Virus
D) Human Influenza Virus
  • 9. Which of the following is a symptom of HIV?
A) Skin rash
B) Fatigue
C) All of the above
D) Persistent cough
  • 10. The maintenance of good health involves:
A) Regular exercise
B) Proper nutrition
C) Adequate sleep
D) All of the above
  • 11. Which organization is responsible for coordinating international public health efforts?
A) Red Cross Society
B) NMA (National Medical Association)
C) UNICEF (United Nations Children's Fund)
D) WHO (World Health Organization)
  • 12. Autotrophs are organisms that:
A) Depend on other organisms for food
B) Break down dead organic matter
C) Produce their own food
D) None of the above
  • 13. Heterotrophs obtain their food by:
A) Chemosynthesis
B) Photosynthesis
C) Consuming other organisms
D) Decomposing organic matter
  • 14. Which of the following represents a trophic level in a food chain?
A) Producers
B) All of the above
C) Primary consumers
D) Secondary consumers
  • 15. The energy flow along trophic levels can be represented by a:
A) Pyramid of Biomass
B) Pyramid of Number
C) Pyramid of Energy
D) All of the above
  • 16. Plasmolysis occurs when a plant cell:
A) Gains water and becomes turgid
B) Loses water and becomes flaccid
C) Bursts due to excessive water intake
D) None of the above
  • 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) Use of bed nets
B) Use of insecticides
C) Vaccination
D) Elimination of breeding sites
  • 19. Which of the following is NOT a role of the Red Cross Society?
A) Promoting health education
B) Blood donation and transfusion services
C) Providing humanitarian aid during disasters
D) Conducting medical research
  • 20. Decomposers play a crucial role in ecosystems by:
A) Providing food for other organisms
B) None of the above
C) Producing oxygen through photosynthesis
D) Breaking down dead organic matter
  • 21. The first process of glycolysis begins with the phosphorylation of glucose to ......
A) Acetyl coenzyme A
B) Oxaloacetic acid
C) glucose -6-phosphate
D) Pyruvic acid
  • 22. The resting phase of the cell in mitosis is .......
A) Anaphase
B) Telophase
C) Interphase
D) Metaphase
  • 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) Isotonic
B) Hypertonic
C) Hypnotonic
D) Hypotonic
  • 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) Golgi bodies
B) Vacuole
C) Nucleolus
D) Lysosome
  • 27. .......... contains the DNA which stores genetic traits.
A) Endoplasmic reticulum
B) Mitochondria
C) Chromosomes
D) Centrioles
  • 28. In the laboratory, turbidity can be measured with a ..............
A) Speedometry
B) Turbidometer
C) Spectrophotometer
D) Geiger muller counter
  • 29. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antigens
B) Vectors
C) Antibodies
D) Pathogens
  • 30. Animal diseases caused by protozoa are the following except ......
A) Gummosis
B) Trypanosomiasis
C) Coccidiosis
D) Trichomoniasis
  • 31. Which process involves the division of a single cell into two identical daughter cells?
A) Cell differentiation
B) Mitosis
C) Meiosis
D) Cell enlargement
  • 32. Which type of growth occurs at the tips of roots and shoots, leading to an increase in length?
A) Auxiliary growth
B) Mitotic growth
C) Meiotic growth
D) Apical growth
  • 33. Which of the following is responsible for regulating growth in plants?
A) Sunlight
B) Nutrients
C) Hormones
D) Enzymes
  • 34. What is the process by which cells convert glucose and oxygen into carbon dioxide, water, and energy?
A) Photosynthesis
B) Glycolysis
C) Fermentation
D) Cellular respiration
  • 35. Which process of cellular respiration occurs in the presence of oxygen and involves the breakdown of glucose?
A) Catabolism
B) Anaerobic respiration
C) Fermentation
D) Kreb's cycle
  • 36. What is the first step of anaerobic respiration, where glucose is converted into pyruvate?
A) Kreb's cycle
B) Fermentation
C) Glycolysis
D) Electron transport chain
  • 37. Which process of cellular respiration produces the most energy in the form of ATP?
A) Glycolysis
B) Fermentation
C) Aerobic respiration
D) Catabolism
  • 38. What is the primary source of energy released during cellular respiration?
A) Oxygen
B) Water
C) Carbon dioxide
D) Glucose
  • 39. Which of the following is the correct equation for aerobic respiration?
A) Glucose + Oxygen → Carbon dioxide + Water + Energy
B) Oxygen + Water + Energy → Glucose + Carbon dioxide
C) Glucose + Water + Energy → Carbon dioxide + Oxygen
D) Carbon dioxide + Water + Energy → Glucose + Oxygen
  • 40. Which process occurs in the absence of oxygen and results in the production of lactic acid or ethanol?
A) Aerobic respiration
B) Kreb's cycle
C) Catabolism
D) Fermentation
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