click below
click below
Normal Size Small Size show me how
Ch 2 living things
Term | Definition |
---|---|
Cell | The smallest functional and structural unit of all living organisms usually consists of a nucleus,cytoplasm, and a membrane |
Stimulus | 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 unite producing offspring that share traits from both parents |
Asexual reproduction | Reproduction that does not involve the union of sex cells and in which on 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 it 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 animal waste and consuming or absorbing the nutrients |
Protein | A molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate process in the body |
Carbohydrate | A class of molecules that includes sugars,starches,and fiber contains carbon, hydrogen, and oxygen |
Lipid | A fat molecule or a molecule that has similar properties examples including oilâs waxes and steroids |
Phospholipid | A lipid that contains phosphorus and that is structural component in cell membranes |
ATP | Adenosine TriPhosphate hey molecule for that acts as the main energy source for cell process |
Nucleic acid | A molecule made up of substance called nucleotides |