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
Which part of the cell is labelled Y?
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Answer
The part of the cell labelled Y is the cell membrane. The cell membrane acts as a barrier that controls what enters and leaves the cell.
Step 2
Which structures are found in the part labelled Z?
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Answer
The structures found in the part labelled Z include:
A: Chromosomes, which carry genetic information.
B: Mitochondria, which are involved in energy production.
C: Ribosomes, which synthesize proteins.
D: Vacuoles, which store substances.
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, often referred to as the powerhouse of the cell.
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 following pairs are formed:
Eyepiece → to look through to see the cells.
Stage → to place a slide on.
Additionally:
Stage → to carry the microscope.
Eyepiece → to make the cells look brighter.
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.
