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Edexcel IGCSE Biology 2.3 Cell structure functions

Practise linking cell structures to their jobs, using diagrams, tables and contexts such as sperm cells, villus cells, chloroplasts and red blood cells.

Syllabus
First assessment 2019
Course
Biology 4BI1

Exam points

  • link ribosomes, mitochondria, nuclei and chloroplasts to their functions in cells
  • interpret cell data to explain why mitochondria numbers differ between active cell types
  • explain how missing nuclei or ribosomes affects protein synthesis in specialised cells

2.3 Cell structure functions question 1

[Maximum number: 2]

Euglena is a microorganism that lives in water.
The diagram shows Euglena with some structures labelled.

Figure for Question 2.3 Cell structure functions question 1 — Edexcel IGCSE Biology

Question (a)

(a)

Which structure is the site of respiration?

A

P

B

R

C

T

D

U

[ 1 ]

Question (b)

(b)

Which structure contains chromosomes?

A

P

B

Q

C

R

D

T

[ 1 ]
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