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biology
biology review
Question | Answer |
---|---|
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. |