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Slomnicki Midterm
| Question | Answer |
|---|---|
| Define nutrition (the life process) and its three sub-processes. | Nutrition:process by which organisms take materials from environ. and prepare them for use. 1.Ingestion: Taking in (food) 2.Digestion: Breaking down (food) so it can be used by organism. 3.Egestion: Removal of indigestible or undigested (food) materials. |
| Define transport (the life process) and explain how it occurs in simple and complex organisms. | Transport:process by which substances enter and leave cells...plus become dist. w/in the cells. SImple organisms: materials are exchanged directly through the environ. Complex Organisms: Circulatory system transports materials. |
| Define respiration (the life process). | Respiration:A series of chemical reactions that release energy from nutrients. |
| Define excretion (the life process) and give an example. | Excretion: Removing excess or harmful substances (not just food like in egestion) from the body. Ex: Urin, which contains a harmful nitrogen-containing waste called Urea. |
| Define synthesis (the life process) and give an example. | Synthesis: Building complex substances cut of smaller substances. Ex: Our cells build proteins for our use, such as the protein melanin (found in our skin). |
| Define regulation (the life process) and give an example. | Regulation: responding to changes in the environment in order to maintain a stable balance. Ex: Our bodies sweat to keep body temperature at 98.6 degress F, 37 degrees C. |
| Define growth (the life process) and give an example. | Growth: increase in the size and number of cells. Ex: Humans begin from a single cell called a zygote. |
| Define reproduction (the life process), and its two forms. | Reproduction: creating more individuals. 1. Asexual: New organism has one parent 2. Sexual: New organism has two different parents unite to form a new organism. |
| Define metabolism (the life process). | Metabolism: all the chemical processes by which an organism carries on its life functions and maintains its life, including the processes that build complex substances from smaller ones and ones that break complex substances into smaller ones. |
| Define homeostasis (the life function). | Homeostasis: organism controls and regulates all the chemical processes in order to maintain a stable internal environment. If it is disrupted majorly, the organism cannot survive. |
Created by:
viva491
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