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drapercells
cells for mrs. hackers class
| Question | Answer |
|---|---|
| what is a cell? | the smallest unit that can perform all life processes. |
| what is stimulus? | anything that causes a reaction or change in an organism. |
| what is sexual reproduction? | reproduction in which the sex cells from two parents unite, producing offspring that share traits from both parents. |
| what is asexual reproduction? | reproduction that does not involve the union of sex cells and in which one parent produces offspring identical to itself. |
| what is heredity? | the passing of genetic traits from parent to offspring. |
| what is metabolism? | the sum of all chemical processes that occur in an organism. |
| what is a producer? | an organism that can make its own food by using energy from its surroundings. |
| what is a consumer? | an organism that eats other organisms or organic matter. |
| what is a decomposer? | an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients. |
| what is protein? | a 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. |
| what is a carbohydrate? | a class of energy giving nutrients that includes sugars, starches, and fiber; contains carbon, hydrogen, and oxygen. |
| what is a lipid? | a type of biochemical that does not dissolve in water; fats and steroids are lipids. |
| what is a phospholipid? | a lipid that contains phosphorous and that is a structural component in cell membranes. |
| what is ATP? | adenosine triphosphate, a molecule that acts as the main energy source for cell processes. |
| what is nucleic acid? | a molecule made up of subunits called nucleotides. |
| why is nucleic acid sometimes called the blueprints of life? | they have all the information needed for a cell to make proteins. |
| what are the four basic needs of every organism? | food, water, shelter, and air. |
| cells of most living things are made of approximately what % water? | 70% |
| green plants, algae and some bacteria need what gas in addition to oxygen? | carbon dioxide |
| what do all organisms do to food in order to use the nutrients in it? | break it down |
| what are the 5 chemical building blocks of cells? | proteins, carbohydrates, lipids, ATP, and nucleic acids |
| how do cells use carbohydrates? | as a source of energy and for energy storage |
| what covers a cell? | a membrane |
| what is homeostasis? | the maintenance of a constant internal state in a changing environment. |
| what does DNA do? | it controls the structure and function of cells. |
| what is your body trying to do when you are shivering or sweating? | return itself to a more normal state. |
| molecules made up of different kinds of atoms are called what? | compounds |
| compounds that make up proteins are? | amino acids |
| proteins that speed up chemical reactions are? | enzymes |
| a protein found in red blood cells that attaches to oxygen is? | hemoglobin |
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draperstudy66
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