Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Objective G
Cellular Metabolism and Molecule Building: Importance of Food
| Term | Definition |
|---|---|
| Metabolism | the chemical processes that occurs within a living organism in order to maintain life. |
| Energy | the ability to do work |
| Nutrients | components in food that the body needs to grow, develop and repair itself |
| Macronutrients | nutrients that organisms must ingest in a large amount to maintain health |
| Enzyme | a special class of proteins that speed up biological reaction by lowering the energy needed to start the reaction; known as the energy of activation; tools of the cell |
| Catalyst | a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change |
| Activation Energy | the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction. |
| Active Site | a region on an enzyme that binds to a protein or other substance during a reaction. |
| Catabolic Reaction | destructive metabolism; the breaking down in living organisms of more complex substances into simpler ones, with the release of energy |
| Anabolic Reaction | constructive metabolism; the synthesis in living organisms of more complex substances from simpler ones |
| Denature | to treat (a protein or the like) by chemical or physical means so as to alter its original state. |
| Digestive system | the system by which ingested food is acted upon by physical and chemical means to provide the body with absorbable nutrients and to excrete waste products |
| Mechanical Digestion | Food is broken down by chewing, biting and tearing |
| Chemical Digestion | Food is broken down by enzymes |
| Mouth | Chews food into smaller bits |
| Pharynx | swallows |
| Salivary Glands | breaks down starch into sugar through chemical digestion; salivary amylase |
| Esophagus | peristalsis; cardiac sphincter |
| Liver | makes bile; largest organ |
| Gull Bladder | stores bile; attached to liver |
| Stomach | pepsin; hydrochloric acid; mucus |
| Small Intestine | most chemical digestion happens; absorbtion; every macromolecule is broken down here |
| Pancreas | makes enzymes, carbs, lipids and bicarbonates |
| Large Intestine | absorbs water and vitamins; produces vitamins B and K |
| Peroxidase | breaks down toxic peroxide in to water and oxygen |
| Substrate | molecules that are being changed by the enzyme |
Created by:
ecpearce
Popular Biology sets