Biology · Grades 9–12
Cell structures and their jobs
Study guide for Grades 9 to 12: 2 worked examples and 2 practice questions. Link each structure to its job.
Rule and key idea
Link each structure to its job. Plant and animal cells share most organelles; prokaryotes such as bacteria have ribosomes and a membrane but no nucleus or membrane-bound organelles.
structure ↔ function · plant cells add wall, chloroplasts, large vacuole · bacteria lack a nucleus
Worked examples
Which structure is found in plant cells but not in animal cells: the cell wall or the cell membrane?
Cell walls, chloroplasts and a large central vacuole are typical of plant cells; both plant and animal cells have a nucleus, mitochondria, ribosomes and a cell membrane.
the cell wall
Which structure is found in plant cells but not in animal cells: the large central vacuole or the cell membrane?
Cell walls, chloroplasts and a large central vacuole are typical of plant cells; both plant and animal cells have a nucleus, mitochondria, ribosomes and a cell membrane.
the large central vacuole
Try two questions
Which structure does a typical bacterial cell have: the Golgi apparatus or the ribosome?
- the Golgi apparatus
- the ribosome
Which structure does a typical bacterial cell have: the ribosome or the mitochondrion?
- the mitochondrion
- the ribosome
Answers and reasoning
Answers and marking notes
- the ribosome
Bacteria are prokaryotes: they have ribosomes and a cell membrane but no nucleus, mitochondria or Golgi apparatus.
- the ribosome
Bacteria are prokaryotes: they have ribosomes and a cell membrane but no nucleus, mitochondria or Golgi apparatus.
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