CIE iGCSE Co-Ordinated Science B2.1 Cell structure Exam Style Questions Paper 1
Question
The diagram shows a plant cell as seen under a light microscope.
Which structure is also found in animal cells?
- A. cell wall
- B. chloroplast
- C. vacuole
- D. nucleus
▶️Answer/Explanation
Answer: D. nucleus
Explanation: The nucleus is a structure found in both plant and animal cells. It contains the cell’s genetic material and controls cellular activities.
Question
Which structure is only found in plant cells?
A. cell membrane
B. cytoplasm
C. nucleus
D. vacuole
▶️Answer/Explanation
Answer: D. vacuole
Explanation: Plant cells have a large central vacuole that stores water and helps maintain the cell’s structure. Animal cells may have smaller vacuoles, but they are not as prominent as in plant cells.
Question
Which statement about cells is correct?
A Cell membranes are found only in animal cells.
B Cell membranes are found only in plant cells.
C Cell walls are found only in animal cells.
D Cell walls are found only in plant cells.
▶️Answer/Explanation
Ans :A
Question
Which statement about animal cells and plant cells is correct?
A Only animal cells possess cell membranes.
B Only animal cells possess cell walls.
C Only plant cells possess cell membranes.
D Only plant cells possess cell walls.
▶️Answer/Explanation
Ans : B
Question
Which structure in a plant cell allows osmosis to occur?
▶️Answer/Explanation
Ans: D
Question
What is found in plant cells but not in animal cells?
(A) cell membrane
(B) cell wall
(C) nucleus
(D) cytoplasm
▶️Answer/Explanation
Ans: B
Question
Which structure is found inside some living plant cells but not in animal cells?
A cell membrane
B chloroplast
C nucleus
D stomata
▶️Answer/Explanation
Ans :B
Question
Which statement about the structures found in animal and plant cells is correct?
A Both have cell walls.
B Only plant cells have a cell membrane.
C Both have cytoplasm.
D Only animal cells have a nucleus.
▶️Answer/Explanation
Ans : C
Question
The diagram shows a typical plant cell.
▶️Answer/Explanation
Ans: D
Question
The diagram shows an incomplete plant cell.
Which structure is not shown?
A. cell membrane
B. cell wall
C. chloroplast
D. vacuole
▶️Answer/Explanation
Answer: B
Explanation: The cell wall is a rigid structure that surrounds the cell membrane in plant cells, providing support and protection. In the diagram, if the cell wall is not shown, it means the cell membrane, chloroplast, and vacuole are visible. Therefore, the structure not shown is the cell wall (B).
Question
Which structure in a plant cell makes organic nutrients?
A. cell membrane
B. cell wall
C. chloroplast
D. nucleus
▶️Answer/Explanation
Answer: C. chloroplast
Explanation: Chloroplasts are the organelles in plant cells responsible for photosynthesis, which is the process of making organic nutrients (glucose) from carbon dioxide and water using sunlight.
Question
What is not in contact with cytoplasm?
A. cellulose cell wall
B. cell membrane
C. chloroplast
D. nucleus
▶️Answer/Explanation
Answer: A. cellulose cell wall
Explanation: The cellulose cell wall is a rigid structure outside the cell membrane in plant cells. It is not in direct contact with the cytoplasm, which is contained within the cell membrane.
Question
Which statement about animal cells and plant cells is correct?
A. Only animal cells possess cell membranes.
B. Only animal cells possess cell walls.
C. Only plant cells possess cell membranes.
D. Only plant cells possess cell walls.
▶️Answer/Explanation
Answer: D. Only plant cells possess cell walls.
Explanation: Plant cells have a rigid cell wall made of cellulose, which provides structural support. Animal cells do not have cell walls; they only have cell membranes.
Question
The diagram shows a section through a cell.
What shows that this is a plant cell?
A It has a cell membrane.
B It has a nucleus.
C It has a permanent vacuole.
D It has cytoplasm.
▶️Answer/Explanation
Answer: C
Explanation: Plant cells are characterized by having a large permanent vacuole, which is not typically found in animal cells.
Question
The diagram shows a body cell and a blood capillary. The arrow represents the direction of diffusion.
For aerobic respiration to occur in the cell, which substances does the arrow represent?
A. carbon dioxide and glucose
B. carbon dioxide and water
C. oxygen and glucose
D. oxygen and water
▶️Answer/Explanation
Answer: C
Explanation: For aerobic respiration, the cell needs oxygen and glucose. Oxygen diffuses into the cell from the blood capillary, and glucose is transported into the cell for energy production.