1 (a) Figure 1 shows an animal cell.
(i) Which part of the cell is labelled Y?
A cell wall
B cell membrane
C nucleus
D cytoplasm
(ii) Which structures are found i... show full transcript
Worked Solution & Example Answer:1 (a) Figure 1 shows an animal cell - Edexcel - GCSE Biology - Question 1 - 2023 - Paper 1
Step 1
(i) Which part of the cell is labelled Y?
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Answer
The part of the cell labelled Y is the B cell membrane. The cell membrane is essential as it protects the cell and regulates what enters and exits.
Step 2
(ii) Which structures are found in the part labelled Z?
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Answer
The structures found in the part labelled Z include:
B mitochondria
D vacuoles
These organelles are vital for energy production and storage within the cell.
Step 3
(iii) Name the part of an animal cell where respiration occurs.
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Answer
The part of an animal cell where respiration occurs is the mitochondria. Mitochondria are known as the powerhouses of the cell, as they generate ATP through cellular respiration.
Step 4
(i) Give one advantage of using a microscope to look at cells.
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Answer
One advantage of using a microscope is that cells appear larger or magnified, allowing details and organelles to be seen more clearly.
Step 5
(ii) Draw one straight line from each part of the microscope to its function.
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Eyepiece → To look through to see the cells.
Stage → To place a slide on.
Step 6
(iii) Give the name of the smallest unit shown in Figure 3.
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The smallest unit shown in Figure 3 is the picometre.
