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GurneyFinal Exam
| Question | Answer |
|---|---|
| something that causes a reaction in an organism | stimulus |
| smallest unit that can perform all life processes | cell |
| maintenance of a constant internal state in a changing envirnment | homeostasis |
| covered by a membrane and have DNA and cytoplasm | cell |
| reproduction in which the sex cells from two parents unite, producing offspring that share traits from both parents | sexual reproduction |
| the passing of genetic traits from parent to offspring | heredity |
| reproductioin in which ONE parent produces offspring identical to itself | asexual reproduction |
| sum of all chemical processes that occur in an organism | metabolism |
| an organism that can make its own food by using energy from its surroundings | producer |
| molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body | protein |
| organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients | decomposer |
| class of energy-giving nutrients that includes sugars, starches, and fiber | carbohydrates |
| organism that eats other organisms or organic matter | consumer |
| energy-giving nutrients that contain carbon, hydrogen, and oxygen | carbohydrates |
| type of biochemical that doesn't dissolve in water | lipid |
| lipid that contains phosphorus and that is a structural component in cell membranes | phospholipid |
| examples of these are fats and steroids | lipids |
| Adenosine TriPhosphate | ATP |
| molecule made up of subunits called "nucleotides" | nucleic acid |
| carbohydrates made up of one sugar maolecule or a few sugar molecules linked together | simple carbohydrates |
| Your body is approximately how much water? | 70% |
| Complex carbohydrates in a potato plant are stored as what? | starch |
| What are the basic needs of any and every organism? | water, food, air, and a place to live |
| Enzymes are proteins that do what? | start or speed chemical processes |
| What is the molecule that acts as the main energy source for cell processes? | ATP |
| What is the main difference between fats and lipids? | At room temperature, fats are solid and oils are liquid |
| What are the two gases that make up air? | oxygen and carbon dioxide |
| What are the six elements in molecules that are found in all living things? | carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur |
| What are the five chemical building blocks of life? | proteins, carbs, lipids, ATP, and nucleic acids |
| Which part of a phosopholipid is attracted to water, the head or the tail? | the head |
| What do all living things have in common? | they have cells, sense and repond to change, reproduce, use energy, have DNA, and grow and develop |
| What is the name of the process in which organisms produce food and oxygen? | photosynthesis |
Created by:
jgurney
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