**(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 str... show full transcript
Worked Solution & Example Answer:**(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 crucial as it controls 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 and ribosomes. Mitochondria are responsible for energy production in the cell, while ribosomes are involved in protein synthesis.
Step 3
Name the part of an animal cell where respiration occurs.
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Answer
Respiration in an animal cell occurs in the mitochondria, where glucose and oxygen are converted 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 is that it allows cells to appear larger and enables the observation of organelles in more detail.
Step 5
Draw one straight line from each part of the microscope to its function.
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Answer
Eyepiece: to look through to see the cells
Stage: to place a slide on
Other parts may include:
to carry the microscope
to make the cells look brighter
to reflect light onto the cells.
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 (10^-12 m), which is used to measure extremely small structures.
