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PES BST JS 2 BST (OBJ) 2ND TERM EXAM 2025/2026
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  • 1. The smallest unit that can carry out life processes is the.......
A) Tissue
B) Organ
C) Cell
D) Organism
  • 2. Who discovered the cell for the first time?
A) Isaac Newton
B) Robert Hooke
C) Albert Einstein
D) Louis Pasteur
  • 3. The organelle that controls all the activities within the cell is .......
A) Cytoplasm
B) Vacuole
C) Cell membrane
D) Nucleus
  • 4. Which of the following is found only in plant cells?
A) Chloroplast
B) Nucleus
C) Ribosome
D) Cytoplasm
  • 5. The jelly-like substance inside the cell is called.......
A) Cell wall
B) Nucleus
C) Cytoplasm
D) Chloroplast
  • 6. Which structure controls what enters and leaves the cell?
A) Nucleus
B) Cytoplasm
C) Cell membrane
D) Ribosome
  • 7. The rigid outer covering of a plant cell is called.......
A) Nucleus
B) Cell membrane
C) Cytoplasm
D) Cell wall
  • 8. The green pigment in plants responsible for photosynthesis is called.....
A) Chlorophyll
B) Enzyme
C) Hemoglobin
D) Cytoplasm
  • 9. The vacuole in plant cells helps to......
A) Control movement
B) Control breathing
C) Store food and water
D) Produce energy
  • 10. Which of the following is NOT part of the cell theory?
A) Cells are made of living things
B) Cells are the basic unit of life
C) All living things are made of cells
D) Cells come from pre-existing cells
  • 11. Which of the following is common to both plant and animal cells?
A) Chloroplast
B) Large vacuole
C) Cell wall
D) Nucleus
  • 12. Growth in living organisms is best defined as.............
A) Increase in movement
B) Ability to reproduce
C) Increase in size and mass
D) Ability to respond to stimuli
  • 13. Growth can be measured using the following, EXCEPT..........
A) Length
B) Weight
C) Height
D) Intelligence
  • 14. Which of the following is NOT a stage of human development?
A) Adolescence
B) Infancy
C) Germination
D) Senescence
  • 15. The stage between childhood and adulthood is called...........
A) Puberty
B) Infancy
C) Adolescence
D) Senescence
  • 16. Which factor does NOT affect growth and development?
A) Heredity
B) Colour of clothes
C) Environment
D) Nutrition
  • 17. Microorganisms are organisms that are........ ...
A) Very large
B) Invisible to the naked eye
C) Only found in water
D) Only plants
  • 18. Which of these is NOT a group of microorganisms?
A) Fungi
B) Bacteria
C) Protozoa
D) Mammals
  • 19. Viruses can only reproduce ............
A) In water
B) In air
C) Inside living cells
D) In soil
  • 20. Which of these is a fungal disease?
A) Cholera
B) Ringworm
C) Measles
D) Malaria
  • 21. Which microorganism is used in making bread?
A) Yeast
B) Bacteria
C) Protozoa
D) Virus
  • 22. Microorganisms that cause diseases are called........
A) Producers
B) Saprophytes
C) Consumers
D) Pathogens
  • 23. The five kingdoms include all the following except...... .... .
A) Fungi
B) Virus
C) Monera
D) Protista
  • 24. The simplest organisms are found in which kingdom?
A) Animalia
B) Fungi
C) Monera
D) Plantae
  • 25. Amoeba belongs to which kingdom?
A) Monera.
B) Protista
C) Animalia
D) Plantae
  • 26. Which kingdom contains unicellular organisms without a true nucleus?
A) Plantae
B) Protista
C) Monera
D) Fungi
  • 27. Organisms in the kingdom Protista are mostly...........
A) Unicellular
B) Without cells
C) Multicellular
D) Non-living
  • 28. Which of the following kingdoms contains only multicellular organisms?
A) Protista
B) Animalia
C) Bacteria
D) Monera
  • 29. Which kingdom includes organisms like mushrooms and molds?
A) Monera
B) Animalia
C) Fungi
D) Plantae
  • 30. A triangle is a polygon with how many sides?
A) 2
B) 4
C) 3
D) 5
  • 31. A triangle with two equal sides is called:........
A) Equilateral triangle
B) Isosceles triangle
C) Scalene triangle
D) Acute triangle
  • 32. A triangle with one angle equal to 90° is called.........
A) Right-angled triangle
B) Obtuse triangle
C) Obtuse triangle
D) Equilateral triangle
  • 33. A polygon is a shape that has.............
A) Straight sides
B) No sides
C) Curved sides
D) Circular shape
  • 34. A regular polygon has.............
A) Unequal sides
B) Equal sides and equal angles
C) Only equal sides
D) Only equal angles
  • 35. A pentagon has how many sides?
A) 7
B) 5
C) 6
D) 8
  • 36. Which of the following is NOT a polygon?
A) Circle
B) Pentagon
C) Triangle
D) Square
  • 37. Site preparation in building construction involves.. .............
A) Painting the building
B) Selling the land
C) Preparing the land before construction
D) Decorating the building
  • 38. The marking of foundation lines is done during..........
A) Clearing
B) Excavation
C) Levelling
D) Setting out
  • 39. Which of the following comes after site clearing?
A) Setting out
B) Roofing
C) Painting
D) Plastering
  • 40. Which tool is commonly used for setting out?
A) Tape measure
B) Cutlass
C) Helmet
D) Hammer
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