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