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Animal and plant cells

Key concepts in biology · Cell structure and specialised cells · note 1 of 3

Animal and plant cellsSpec 1.1

In short

Animal and plant cells are eukaryotic cells, which means their genetic material is enclosed in a nucleus. Both have a nucleus, cell membrane, mitochondria and ribosomes. Plant cells also have a cellulose cell wall that strengthens the cell, chloroplasts that absorb light for photosynthesis, and a vacuole containing cell sap that helps keep the cell firm.

Animal and plant cells are eukaryotic cells. Their genetic material is enclosed in a nucleus. Each structure inside a cell, called a sub-cellular structure, has a job, and you need to link each structure to its function.

Sub-cellular structures in animal and plant cells
StructureFunctionAnimal cellPlant cell
NucleusContains the genetic material (DNA) and controls the activities of the cellYesYes
Cell membraneControls the movement of substances into and out of the cellYesYes
MitochondriaWhere aerobic respiration takes place, releasing energy for the cellYesYes
RibosomesWhere proteins are made (protein synthesis)YesYes
Cell wallMade of cellulose. Strengthens the cell and supports itNoYes
ChloroplastsContain chlorophyll, which absorbs light for photosynthesisNoYes
VacuoleContains cell sap, a solution of sugars and salts, and helps keep the cell firmNoYes

Plant cells have three structures that animal cells do not: a cell wall, chloroplasts and a vacuole. Chloroplasts are only found in the green parts of a plant that photosynthesise, such as leaf cells.

Labelled diagrams of an animal cell (nucleus, cell membrane, cytoplasm, mitochondria, ribosomes) and a plant cell with the same structures plus a cell wall, chloroplasts and a large vacuole, which are labelled in green. (opens full size in a new tab)
An animal cell and a plant cell. Only plant cells have a cell wall, chloroplasts and a vacuole (green labels).
Exam tip:

Say the cell membrane controls what enters and leaves the cell, and that mitochondria release energy by respiration. Never write that the membrane 'holds the cell together' or that mitochondria 'make energy'.

Written and checked against the Edexcel GCSE Combined Science (1SC0) specification · Updated October 2026

Frequently asked questions

What is the difference between prokaryotic and eukaryotic cells?

Eukaryotic cells, such as animal and plant cells, have their genetic material enclosed in a nucleus, while prokaryotic cells, such as bacteria, do not. In bacteria the chromosomal DNA is a single loop free in the cytoplasm, often with plasmids. Prokaryotic cells also have no mitochondria, and some have flagella.

Why do plant cells have a cell wall?

Plant cells have a cell wall because it strengthens the cell and supports it. The cell wall is made of cellulose and surrounds the cell membrane. Animal cells do not have a cell wall. Plant cells also have chloroplasts for photosynthesis and a vacuole of cell sap that helps keep the cell firm.

How is a sperm cell adapted to its function?

A sperm cell is adapted to reach an egg cell and fuse with it. Its tail moves from side to side so it can swim, and many mitochondria release energy by aerobic respiration for the tail. The acrosome contains digestive enzymes to break into the egg, and the haploid nucleus has half the chromosomes.

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