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The cell in Diagram 2 is undergoing a - VCE - SSCE Biology - Question 9 - 2021 - Paper 1
Question 9
The cell in Diagram 2 is undergoing a. apoptosis. b. exocytosis. c. plasmolysis. d. endocytosis.
Worked Solution & Example Answer:The cell in Diagram 2 is undergoing a - VCE - SSCE Biology - Question 9 - 2021 - Paper 1
Step 1
a. apoptosis.
Answer
Apoptosis is the process of programmed cell death. To identify if the cell is undergoing apoptosis, look for characteristics such as cell shrinkage, chromatin condensation, and the formation of apoptotic bodies. If these features are present in Diagram 2, apoptosis would be the correct choice.
Step 2
b. exocytosis.
Answer
Exocytosis is the process by which cells expel materials. It usually features an increase in vesicles at the cell membrane merging to release their contents outside the cell. If there are visible vesicles fusing with the membrane in the diagram, then exocytosis could be considered.
Step 3
c. plasmolysis.
Answer
Plasmolysis occurs when a plant cell loses water and the cell membrane contracts away from the cell wall, often due to an external hypertonic solution. Characteristics such as cell shrinkage and increased spacing between the cell membrane and wall would indicate plasmolysis.
Step 4
d. endocytosis.
Answer
Endocytosis is the process by which cells engulf materials from the outside environment, leading the cell membrane to invaginate and form vesicles. Signs of endocytosis include membrane folding inward and the presence of vesicles within the cell. An evaluation of Diagram 2 would help clarify if this is occurring.