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Ch. 2 Living things
Term | Definition |
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Cell... | The smallest functional and structural unit of all living organisms usually consists of a nucleus and a membrane. |
Stimulus/ stimuli .. | Anything that causes a reaction or change in an organism or any part of an organism. |
Homeostasis.... | The maintenance of a constant internal state in a changing environment. |
Sexual reproduction... | Reproduction in which the sex cells from two parents untie producing offspring that share traits from each parents. |
Asexual reproduction .... | Reproduction that does not involve the union of sex cells in which one parent produces offspring identical to itself. |
Heredity.... | The passing of genetic traits from parent to offspring. |
Metabolism ..... | The sum of all chemical processes that occur in an organism. |
Producer.... | An organism that can make its own food by using energy from its surroundings. |
Consumer ..... | An organism that eats other organisms or organic matter. |
Decomposer .... | An organism that gets energy by breaking down the remains of dead organisms or animals wastes and consuming or absorbing the nutrients. |
Protein | A molecule that is made up of amino acids and is needed to build and repair body structures and regulate processes in the body. |
Carbohydrate | A class of molecules that includes sugar, starches, and fiber contains carbon, hydrogen, and oxygen. |
Lipid | |
A fat molecule or a molecule that has similar properties examples include oils waxes and steroids. | |
Phospholipid | A lipid that contains phosphorus and that is a structural component in cell membranes |
ATP | Adenosine TriPhoshate a molecule that acts as the main energy source for cell processes |
Nucleic acid | A molecule made up of subunits called nucleotides |