PES BST JS 2 BST (OBJ) 2ND TERM EXAM 2025/2026
  • 1. The smallest unit that can carry out life processes is the.......
A) Organism
B) Cell
C) Organ
D) Tissue
  • 2. Who discovered the cell for the first time?
A) Albert Einstein
B) Robert Hooke
C) Isaac Newton
D) Louis Pasteur
  • 3. The organelle that controls all the activities within the cell is .......
A) Nucleus
B) Cytoplasm
C) Cell membrane
D) Vacuole
  • 4. Which of the following is found only in plant cells?
A) Cytoplasm
B) Ribosome
C) Nucleus
D) Chloroplast
  • 5. The jelly-like substance inside the cell is called.......
A) Nucleus
B) Chloroplast
C) Cell wall
D) Cytoplasm
  • 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) Cell membrane
B) Cell wall
C) Cytoplasm
D) Nucleus
  • 8. The green pigment in plants responsible for photosynthesis is called.....
A) Chlorophyll
B) Enzyme
C) Cytoplasm
D) Hemoglobin
  • 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 come from pre-existing cells
B) All living things are made of cells
C) Cells are the basic unit of life
D) Cells are made of living things
  • 11. Which of the following is common to both plant and animal cells?
A) Cell wall
B) Chloroplast
C) Nucleus
D) Large vacuole
  • 12. Growth in living organisms is best defined as.............
A) Increase in movement
B) Ability to reproduce
C) Ability to respond to stimuli
D) Increase in size and mass
  • 13. Growth can be measured using the following, EXCEPT..........
A) Height
B) Length
C) Weight
D) Intelligence
  • 14. Which of the following is NOT a stage of human development?
A) Senescence
B) Adolescence
C) Infancy
D) Germination
  • 15. The stage between childhood and adulthood is called...........
A) Infancy
B) Senescence
C) Adolescence
D) Puberty
  • 16. Which factor does NOT affect growth and development?
A) Nutrition
B) Colour of clothes
C) Heredity
D) Environment
  • 17. Microorganisms are organisms that are........ ...
A) Only plants
B) Invisible to the naked eye
C) Only found in water
D) Very large
  • 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 air
B) Inside living cells
C) In soil
D) In water
  • 20. Which of these is a fungal disease?
A) Malaria
B) Cholera
C) Measles
D) Ringworm
  • 21. Which microorganism is used in making bread?
A) Bacteria
B) Yeast
C) Protozoa
D) Virus
  • 22. Microorganisms that cause diseases are called........
A) Pathogens
B) Saprophytes
C) Producers
D) Consumers
  • 23. The five kingdoms include all the following except...... .... .
A) Fungi
B) Protista
C) Monera
D) Virus
  • 24. The simplest organisms are found in which kingdom?
A) Plantae
B) Animalia
C) Monera
D) Fungi
  • 25. Amoeba belongs to which kingdom?
A) Monera.
B) Protista
C) Plantae
D) Animalia
  • 26. Which kingdom contains unicellular organisms without a true nucleus?
A) Fungi
B) Monera
C) Protista
D) Plantae
  • 27. Organisms in the kingdom Protista are mostly...........
A) Multicellular
B) Non-living
C) Without cells
D) Unicellular
  • 28. Which of the following kingdoms contains only multicellular organisms?
A) Animalia
B) Monera
C) Protista
D) Bacteria
  • 29. Which kingdom includes organisms like mushrooms and molds?
A) Monera
B) Plantae
C) Animalia
D) Fungi
  • 30. A triangle is a polygon with how many sides?
A) 2
B) 4
C) 5
D) 3
  • 31. A triangle with two equal sides is called:........
A) Isosceles triangle
B) Acute triangle
C) Scalene triangle
D) Equilateral triangle
  • 32. A triangle with one angle equal to 90° is called.........
A) Equilateral triangle
B) Right-angled triangle
C) Obtuse triangle
D) Obtuse 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) Only equal angles
B) Equal sides and equal angles
C) Only equal sides
D) Unequal sides
  • 35. A pentagon has how many sides?
A) 7
B) 6
C) 8
D) 5
  • 36. Which of the following is NOT a polygon?
A) Triangle
B) Square
C) Circle
D) Pentagon
  • 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) Setting out
B) Clearing
C) Levelling
D) Excavation
  • 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) Hammer
B) Tape measure
C) Helmet
D) Cutlass
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