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KiscoanCells
Mrs. Hackers Unit 1 Chapter 2 Lessons 1-2 Review
| Question | Answer |
|---|---|
| What is anything that causes a reaction or change in an organism or any part of an organism? | stimulus |
| What is the maintenance of a constant internal state in a changing environment? | homeostasis |
| What is the smallest unit that can perform all life processes and are covered by a membrane and have DNA and cytoplasm? | cell |
| What is reproduction in which the sex cells from two parents unite, producing offspring that share traits from both parents? | sexual reproduction |
| What is reproductionthat does not involve the union of sex cells and in which one parent produces offspring identical to itself? | asexual reproduction |
| What is the passing of genetic traits from parent to offspring? | heredity |
| What is the sum of all chemical processes that occur in an organism? | metabloism |
| What is an organism that can make its own food by using energy from its surroundings? | producer |
| What is an organism that eats other organisms or organic matter? | consumer |
| What is an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients? | decomposer |
| What is a molecule that's made up of amino acids and that's needed to build and repair body structures and to regulate processes in the body? | protein |
| What is a class of energy-giving nutrients that includes sugars, starches, and fiber; contains carbon, hydrogen, and oxygen? | carbohydrates |
| What is a type of biochemical that does not dissolve in water and are fats and oils? | lipids |
| What is a lipid that contains phosphorous and that is a structural component in cell membranes? | phospholipid |
| What is a molecule that acts as the main energy source for cell processes? | ATP |
| What is a molecule made of subunits called nucleotides? | nucleic acid |
| What are the 4 basic needs for every organism? | water, air, shelter, and food |
| What is the percentage of water in the cells of most living things? | 70% |
| Air is a mixture of gases including oxygen and what other gas? | carbon dioxide |
| What is a chemical process in which most living things use oxygen? | releasing energy from food |
| Green organisms convert the energy in sunlight to energy stored in food during what process? | photosynthesis |
| What two things does food give an organism? | energy and the raw materials needed to carry on life processes |
| What are two ways organisms use nutrients from food? | replace body cells and build body parts |
| What is a substance that makes up nutrients and is created when two or more atoms combine? | molecules |
| What are molecules that are made of different kinds of atoms? | compounds |
| How do cells use carbohydrates? | source of energy and energy storage |
| True/False: Lipids mix with water. | False |
| What is a carbohydrate made of one sugar molecule or a few linked sugar molecules called? | simple carbohydrate |
| What is a carbohydrate made of hundreds of molecules linked together called? | complex carbohydrate |
| Where can an organsim get energy oce it has used up most of its carbohydrates? | lipids (fats/oils) |
| Why are nucleic acids called the blueprints of life? | They have all the information needed for a cell to make proteins. |
| What are compounds that make up proteins? | amino acids |
| What are proteins that speed up chemical reactions? | enzymes |
| What is a protein found in red blood cells that attaches to oxygen? | hemoglobin |
Created by:
mokiscoan
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