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