Cell organelles
2.3
KEY IDEAS In this topic, you will learn that animal and plant cell organelles have specific structures and perform distinct functions.
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The organelles in eukaryotic cells allow them to specialise, reducing the amount of energy and resources that are needed to keep the organism alive. Different cell types have different organelles, depending on their function. Microscopes allow us to view and identify organelles as well as describe their location, structure, quantity and characteristics within different cell types. Organelles are often surrounded by their own membranes and contain internal fluid at a specific pH and the required amounts of ions, water and enzymes to efficiently carry out their function.
Structures in both plant and animal cells
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Animal and plant cells have many organelles in common. Chromatin
Rough endoplasmic reticulum
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Nucleus
Centrioles
-N
Nuclear pore
Mitochondrion
Smooth endoplasmic reticulum
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Vacuole
Nucleolus
Lysosome
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Plasma membrane
D
Golgi body Cytoskeleton
Ribosomes
FIGURE 1 A detailed diagram of an animal cell
OXFORD UNIVERSITY PRESS
CHAPTER 2 CELL STRUCTURE AND FUNCTION
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