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Zajicek Study Stack
Chapter 2 Its Alive
| Question | Answer |
|---|---|
| What is the smallest unit that can perform all life processes and are covered by a cell membrane and have DNA and cytoplasm? | Cells |
| 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 constand internal state in a changing environment? | Homeostasis |
| What is reproduction in which the sex cells from 2 parents unite, producing offspring that shares traits from both parents? | Sexual reproduction |
| What is reproduction that 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 gentic traits from parent to offspring? | Heredity |
| What is the sum of all chemical processes that occur in an organism? | Metabolism |
| 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 is made up of amino acids and that is 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? | Carbohydrate |
| What is a type of biochemical that does not dissolve in water? | Lipid |
| What is a lipid that contains phosphorus and that is a structural component in cell membranes? | Phosopholipid |
| What is a molecule that acts as the main energy source for cell processes? | ATP |
| What is a molecule made up of subunits called nucleotides? | Nucleic acid |
| What are three examples of stimuli? | Chemicals, gravity, and light. |
| What does DNA do? | DNA controls the structure and function of cells. |
| What do organisms pass on to their offspring? | Copies of their DNA. |
| What are three examples of activities of life carried out by all organisms? | Making food, breaking down food, and moving materials into and out of cells. |
| How does a single-celled organism grow? | by growing larger over time and dividing, making other organisms. |
| How do organisms with many cells grow? | the number of cells gets larger and the organism gets bigger |
| What are the four basic need of every organism? | Food, water, air, and a place to live |
| Cells of most living things are made apprimately of what? | 70% water |
| Most of the chemical reactions involved in metabolism require what? | Water |
| Air is a mixture of gases, including oxygen and what? | Carbon dioxide |
| What is a chemical process in which most living things use oxygen? | Releasing energy from food. |
| Green plants, algae, and some bacteria need carbon dioxide gas in addition to what? | Oxygen |
| Green organisms convert energy in sunlight to energy stored in food during what? | Photosynthesis. |
| What do all organisms do to food in order to use the nutrients in it? | All organisms break down their food in order to use nutrients in it. |
| Nutrients are made up of what, a substance created when 2 or more atoms combine? | Molecules. |
| Molecules made of different kinds of atoms are called what? | Compunds. |
| What are the five chemical buliding blocks of cells? | Proteins, carbohydrates, lipids, ATP, and nucleic acids. |
| 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. |
| What is a nutrient involved in almost all life process? | Protein. |
| How do cells use carbohydrates? | As a source of energy and for energy storage. |
| Carbohydrates made of one sugar molecule or a dew linked sugar molecules are called what? | Simple carbohydrates. |
| What is an example of a simple carbohydrate? | table sugar. |
| A carbohydrate made of hundreds of molecules linked together is called a what? | complex carbohydrate. |
| The molecules that form much of the cell membrane are what? | Phospholipids. |
| What is a difference between fats and oils? | at room temperature, most fats are solids and most oils are liquids. |
| Why are nucleic acids called the blueprints of life? | They have all the info needed for a cell to make proteins. |
Created by:
alecz
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