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... show full transcript
Worked Solution & Example Answer:1 (a) Figure 1 shows an animal cell - Edexcel - GCSE Biology Combined Science - 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 is responsible for controlling the movement of substances in and out of 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 mitochondria. Mitochondria are the powerhouse of the cell, responsible for energy production.
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. Mitochondria are essential for aerobic respiration, converting glucose and oxygen into energy.
Step 4
Give one advantage of using a microscope to look at cells.
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Answer
One advantage of using a microscope to look at cells is that it allows cells to appear larger or magnified, enabling detailed observation of their structures and organelles.
Step 5
Draw one straight line from each part of the microscope to its function.
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Answer
Here’s the mapping from the parts of the microscope to their functions:
Eyepiece → to look through to see the cells
Stage → to place a slide on
Light source → to reflect light onto the cells
Arm → to carry the microscope
Condenser → 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 nanometre, as it measures 10^{-9} meters.
