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BIOLOGY WORKSHEET 3 FOR GRADE 9 STUDENTS 2024/2017E.C

1. Among the following biologists, who is known for the formulation of cell theory?
A. Mathias Schiedam C. Lewis Pasteur
B. Theodore Schwann D. A and B only
2. A microscope with two lens systems is
A. Simple microscope C. High power microscope
B. Compound microscope D. Ocular microscope
3. The resolution power of a microscope is the ability to;
A. Show objects clearly C. Make objects smaller
B. Increase the size of the objects D. All
4. A part of compound microscope that is used to refract light on the stage is:
A. Mirror C. Stage clips
B. Fine adjustment D. Course adjustment
5. Cell membrane allows some substances to pass into the cell because of:
A. Cell membrane is flaccid C. Cell membrane is strong
B. Cell membrane is permeable D. Cell membrane selectively permeable
6. A cell that lacks double membrane bounded organelles and nucleus are:
A. Eukaryotic cell C. Animal cell
B. Prokaryotic cell D. Plant cell
7. Of the following which one is considered to be the basic tool for biologist?
A. Microscope C. Telescope
B. Stethoscope D. Calorimeter
8. If some cell possess large central vacuole, chloroplast, nucleus and cell wall; it will most probably be:
A. Nerve cell B. Root hair cell C. Bacterial cell D. Protozoan cell
8. Plasmolysis takes place when a cell is kept in:
A. Hypotonic solution B. Isotonic environment C. Hypertonic solution D. All
9. If some cell is placed in hypotonic solution it will:
A. Shrink B. Plasmolysis C. Swell up D. Remain unchanged
10. Which of the following solutions of sucrose is hypotonic to all the rest?
A. 50% B. 20% C. 15% D. 80%
11. The uptake of mineral ions from the soil in to the plant is by:
A. Active transport C. Osmosis
B. Passive transport D. Diffusion
12. One of the following is not a major component cell theory, which one is it?
A. One cell comes from another cell
B. Organisms are composed of one or more cells
C. Cells are the basic structural and functional unit of life
D. Cells are microscopic
13. The sugar that found in milk is;
A. Lactose B. Sucrose C. Glucose D. Maltose
14. Which of the following is due to loss of water from cells;
A. Wilting B. Plasmolysis C. Shrinking D. All
15. thread like structure inside the nucleus that contain the genetic material are called
A, Alleles B, genes C, nucleotide D, chromosomes

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17. If an animal cell is put in concentrated salt solution, which of the following event will happen ?
A, the cell becomes shrunk B, Salt moves into the cell
C, the cell becomes plasmolyzed D, Water moves into the cell
18. which of the following is true about the rate of diffusion?
A, Diffusion decreases when there is very high concentration different between two areas.
B, Diffusion increases when there is very low concentration different between two areas.
C, Diffusion increases when the temperature increases.
D, Diffusion increases when the temperature decreases.
19. An organelle that is important for protein synthesis is known as
A, Ribosome B, Chloroplast C, nucleus D, mitochondrion
21. What is the resolution power of a microscope?
A. Make objects look brighter B. Increases the size of objects
C. Make objects look smaller D. Show objects clearly
22. The ability of the microscope to separate two objects close to each other is called
A.Resolution B.Reflection C.Condensation D.Magnification
23. The cell theory states that cells
A. Are the basic units of life. B. Have central nucleus.
C. Reproduce sexually. D. Originate spontaneously
24. This item is based on the following diagram which shows a generalized animal cell.

In the above diagram letter "A" represents

A. Rough endoplasmic reticulum B. Cytoplasm C. Smooth endoplasmic reticulum D. Mitochondrion
25. A cellular structure where protein synthesis takes place is
A. Endoplasmic reticulum. B. Ribosome C. Mitochondrion D. Nucleus.
26. A plant cell has 10% sucrose concentrations in its cytoplasm. If the cell is immersed in 1% sucrose
solution, it will
A. Burst . Become turgid. C. Become big. D. Become plasmolysed.
27. If a plant cell is plasmolysed, the
A. Pressure inside its vacuole increases. B. Cell membrane will be firmly attached on the cell wall
C. Cytoplasm shrinks away from the cell wall. D. Vacuole pushes the cytoplasm towards the cell wall.
28. The following table compares prokaryotes and eukaryotes

A. Present, Present, Present

B. Present, Present, Absent
C. Present, Absent, Present (relatively large)
D. Present, Absent, Present(relatively small)
29. If you immersed pieces of potato of known weight into a sugar solution and found no change in
weight of the potato strips after sometime, then:-

A. The salt solution is probably isotonic to the cell sap.

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B. The salt solution is probably hypotonic to the cell sap.
C. The salt solution is probably hypertonic to the cell sap.
D. The cell sap is hypotonic to the salt solution
30. Suppose a hypothetical cell of 20% solute concentration is put in a beaker containing 90% water
and 10%. In which way will the water move?
A. From the beaker to the cell
B. Both into and beaker
C. Both into and out of the beaker
D. From the beaker to the cell
31. Which of the following organelles are likely to be more abundant in active cells such as muscle &
liver cells?
A. Ribosome B. Golgi bodies C. Mitochondria D. Lysosome
32. Which of the following feature is not common for all cells?
A. Having a membrane, which separates the cell contents from everything else outside
B. Containing of genetic material which stores all of the instructions needed for the cell’s
activities.
C. Having their own energy release system that powers all of the cell’s activities
D. Comprising of a complex system of interconnected double membranes
33. If an amoeba and red blood cells are put in distilled water, the amoeba survives under hypotonic
stress whereas the red blood cells burst. This is because :
A. Amoeba is composed of cell membrane which is freely permeable to allow movement of
water in and out.
B. The cell of amoeba is composed of cell wall which creates turgor pressure when it is in
hypotonic condition and protects the cell from bursting.
C. as long as the amoeba adapted to live in freshwater it doesn’t responses to water loss and gain
D. Since amoeba have contractile vacoule which controls water balance by accumulating and
expelling excess water out of the cell.
34. Which of the following country is the primary center of Eragrostis tef?
A. Kenya B. Brazil C. Ethiopia D. Sudan
35. Suppose you are looking prepared slide of unknown cell under microscope to identify whether it
is plant cell, animal cell or bacteria cell. How you analyze it? If you noticed:
A. cell wall and cell membrane it is the bacterial cell
B. Mitochondoria and ribosome it is the plant cell.
C. Central vacoule, chloroplast and mitochondria it is the plant cell
D. Nucleus and mitochondria it is the animal cell
36. Which of the following structure of in the cell animal is correctly matched with its function?
A. Lysosomes- destroy damaged organelles and remove unwanted substances from cell
B. Smooth endoplasmic reticulum –synthesis of lipid and protein
C. Rough endoplasmic reticulum _ manufacturing of carbohydrates
D. Vesicles – modifying, packing and distributing of protein
37. Which of the following organelles are found in animal cells but not in plant cells?
A. Lysosomes and nucleus C. Lysosomes and Centrioles
B. central vacoule and ribosome D. Chloroplast and Golgi apparatus
38. Which of the following happens primarily if a nucleolus is missing in a cell?
A. The cell become non membrane bounded C. Ribosomal function will be disrupted
B. The controlling activity of cell is interrupted D. Nuclear membrane will be blocked
39. If the solute concentration of solution A is greater than solution B then solute A is said to be
A. hypertonic to solution B C. osmotic to solution B
B. hypotonic to solution B D. isotonic to solution B

40. Which of the following is a similarity between a bacterial and plant cells?

Makko Billi School Sir Daniel M. 2025/2017

A. The presence of cytoplasm surrounded by a membrane and cell wall
B. The enclosed genetic material in nuclear membrane
C. The material out of which the cell wall is made
D. Their possession of flagella and capsule
41. Which of the following is an active transport process?
A. Water uptake by plant roots from the soil
B. Oxygen absorption by the cells from the blood
C. Mineral ions uptake by plant roots from the soil
D. Oxygen inhalation from the atmosphere
42. Which of the following structures occupies the central position in plant cells?
A. Chloroplast B. Cytoplasm C. Nucleus D. Vacuole
43. The main purpose of cell specialization in multicellular organization is to
A. perform a particular function C. produce more protein
B. pass genetic information. D. facilitate reproduction.
44. This item is based on the following lists of structures of cells
1. Chloroplast 2. Ribosome 3. endoplasmic reticulum
4. cell wall 5. Mitochondria 6. vacuole
Which of the following structures listed above are found in both plant and animal cells?
A. 2, 3. 5 B. 1, 3, 6 C. 3, 4, 5 D. 2, 4, 6
45. When plant cell gets plasmolysed, the
A. cell becomes hard and rigid
B. surrounding fluid of the cell is less concentrated than the inside
C. vacuole shrinks and the cell becomes less rigid
D. inside pressure increases until no water can enter into the cell
46. A biology student demonstrated osmosis using onion epidermal cells. She focused the epidermal cells on
the microscope with a drop of concentrated sucrose solution. After waiting for 30 minutes she observed the
cells and they became
A. plasmolysed B. turgid C. no change D. swollen
47. Which of the following cellular structure is correctly matched to its function?
A. Nucleus→ support plant cells C. Mitochondria→ carry out cellular respiration
B. Cell wall→ carry genetic information D. Ribosome → involved in lipid synthesis
48. Microscope with two lens systems are called
A. compound microscopes C. Ocular microscopes
B. simple microscopes D. High power microscope
49. Which part of a cell contains enzymes used in intracellular digestion?
A. Ribosome B. Lysosome C. Chromosome D. Centesome
50. The net movement of molecules into cells is mostly dependent on the
A. selectivity of plasma membrane C. number of Golgi bodies
B. selectivity of the cell wall D. number of mitochondria
51. The organelles in a cell concerned with protein manufacture are called
A. Ribosomes B. mitochondria C. lysosomes D. vacuoles
52. The part of a plant cell that provides protection and support is
A. Golgi body B. Cell wall C. Plastid D. Nucleus
53. In which of the following does osmosis happen? When
A. oxygen moves from blood into the body cells C. water moves from roots into stems and leaves
B. glucose passes across a permeable membrane D. salt moves across a permeable membrane
54. A cellular structure where protein synthesis takes place is
A. Nucleus B. ribosome C. mitochondrion D. Lysosome
55. Which of the following is a correct pair between an organelle and its function?
A. Vacuole - protein synthesis C. Ribosome - photosynthesis
B. Mitochondrion - cell movement D. Nucleus - controls cellular activities

Makko Billi School Sir Daniel M. 2025/2017