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biology

biology review

QuestionAnswer
Receptor molecule Proteins on the surface of the cell membrane that receive signals from the nervous and endocrine system. These are needed for your cells to communicate and work together.
Neuron A nerve cell.
Lipids Store energy and include fats, oils and waxes. They are made from fatty acids and glycerol.
Jobs of proteins Make enzymes, Make receptor molecules, Make antibodies, Make hormones.
Lock and key model One type of enzyme fits one type of molecule. Change its shape and the enzyme will no longer work.
Digestive system Food is broken down so that it is small enough to enter the body tissues/cells.
Immune system The job of the immune system is to protect the body against pathogens.
types of pathogens Viruses, bacteria, and parasites.
Excretory system Removes metabolic waste from your body.
Nervous system Regulates your body along with the endocrine system.
Created by: Buzz.10