GCSE Edexcel Biology Combined Science Cell Biology and Key Concepts: Figure 1 shows an animal cell.

Question

Figure 1 shows an animal cell.

(a)  
(i) Which part of the cell is labelled Y?

☐ A cell wall  
☐ B cell membrane  
☐ C nucleus  
☐ D cytoplasm

(ii) Which structures are found in the part labelled Z?

☐ A chromosomes  
☐ B mitochondria  
☐ C ribosomes  
☐ D vacuoles

(iii) Name the part of an animal cell where respiration occurs.

(b) A microscope can be used to observe the structure of a cell.  
Figure 2 shows a microscope.

Give one advantage of using a microscope to look at cells.

(c) Draw one straight line from each part of the microscope to its function.

part of the microscope  
function

eyepiece  
stage

(c) Figure 3 shows some of the units used when cells and organelles are measured.

micrometre = 10^−6 m  
picometre = 10^−12 m  
nanometre = 10^−9 m  
millimetre = 10^−3 m

Give the name of the smallest unit shown in Figure 3.

Figure 1 shows an animal cell - Edexcel - GCSE Biology Combined Science - Question 1 - 2023 - Paper 1