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Chapter Review :(
science
| Question | Answer |
|---|---|
| What is stimulus? | anything that causes a reaction or change in an organism or any part of an organism |
| What is a cell? | the smallest unit that can preform all life processes; cells are covered by a membrane and have DNA and cytoplasm |
| What is homeostasis? | the maintenance of a constant internal state in a changing enviroment |
| What is sexual reproduction? | reproduction in which the sex cells from two parents unite, producing offspring that share traits from both parents |
| What is assexual reproduction? | reproducing that does not involve the union of sex cells and in which one parent produces offspring indentical to itself |
| What is heredity? | the passing of genetic traits from one 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 surrondings |
| 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 nutirents |
| 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 carbohydrates? | a class of energygiving nutrients that include sugars, starches, and fiber; contains carbon, hydrogen and oxygen |
| What is a lipid? | a type of biochemical that does not disslove in water; fats and steriods are lipids |
| What is a phosopholipid? | a lipid that contains phosphorus and that is structural component in cell membranes |
| What is ATP? | a molecule that acts as the main energy source for cell processes |
| Starch is an example of ___________ and is made up of sugars. | Carbohydrates |
| Organisms store energy in _____________. | Lipids |
| What is the difference between simple and complex carbohydrates? | Simple only contains one sugar molecule while complex had hundreds of sugar molecules. |
| What are the necessities of life? | Water, air, a place to live, and food. |
| What are the characteristics of living things? | Living things have cells, living things sense and respond to change, living things reproduce, living things have DNA, living things use energy and living things grow and develop. |
| Name three examples of proteins. | Spider webs, hair and feathers are all made up of proteins. |
| What compounds cannot mix with water? | Lipids |
| Name two things that are lipids. | Fats and oils. |
| What is the difference between a consumer and a decomposer? | A consumer eats other organisms (which are alive) and organic matter, while a decomposer gets energy from breaking down the remains of dead organisms or animal waste. |
| What is the diiference between sexual and assexual reproduction? | Sexual reproduction invloves two parents while assexual reproduction only involves one parent. |
| All living things have _________, whether they have a couple or trillions. | cells |
| True or False: A change in an organism's enviroment that affects the organism's activities is response. | False, stimulus |
| True or False: A living thing can have one cell. | True |
| True or False: A decomposer obtains food by eating other organisms. | False, consumer |
| True or False: Fat is a phospholipid that stores energy for an organisms. | False, lipid |
Created by:
awesomeness101
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