Mitochondria (singular: mitochondrion) are visible with a light microscope but can't be seen in detail. Ribosomes are only visible with an electron microscope. Preparing cheek cell slides to view using a light microscope is described in page 6 of this guide.
|Cell structure||How it is related to its function.|
|Cytoplasm||A jelly-like material that contains dissolved nutrients and salts and structures called organelles. It is where many of the chemical reactions happen.|
|Nucleus||Contains genetic material, including DNA, which controls the cell's activities.|
|Cell membrane||It is permeable to some substances but not to others and so controls the movement of substances in and out of the cell.|
|Mitochondria||Organelles that contains the enzymes for respiration, and where most energy is released in respiration.|
|Ribosomes||Tiny structures where protein synthesis occurs.|
Most cells are specialised and are adapted for their function. Animals and plants therefore consist of many different types of cell working together.