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 foun... 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
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 responsible for protecting the cell and regulating what enters and exits.
Step 2
Which structures are found in the part labelled Z?
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Answer
The part labelled Z contains the B mitochondria. Mitochondria are the powerhouses of the cell, responsible for producing energy through cellular respiration.
Step 3
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, as they generate ATP through aerobic respiration.
Step 4
Give one advantage of using a microscope to look at cells.
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Answer
One advantage of using a microscope is that it allows cells to appear larger or magnified, enabling us to see them in more detail and observe organelles.
Step 5
Draw one straight line from each part of the microscope to its function.
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Answer
The eyepiece is used to place a slide on, while the stage is used to carry the microscope and make the cells look brighter. Each component enhances the viewing experience of the specimen.
Step 6
Give the name of the smallest unit shown in Figure 3.
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Answer
The smallest unit shown in Figure 3 is the picometre, which equals 10^-12 m.
