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Living Environment
Topic 2: Homeostasis in Organisms
| Question | Answer |
|---|---|
| Enzymes | Proteins that speed up the rate of chemical reactions in living things |
| Respiration | The process by which the chemical bond energy stored in nutrients is released for use in cells |
| Synthesis | A life process that involves combining simple substances into more complex and substances |
| Photosynthesis | The process by which some organisms are able to capture light energy and use it to make food from carbon dioxide and water |
| Glucose | A sugar that is a major source of energy for cells |
| ATP | (Adenine Triphosphate) a compound that stores energy in cells |
| Chloroplasts | Green organelles that contain chlorophyll; where photosynthesis takes place |
| Pancreas | An endocrine organ that secretes insulin |
| Insulin | A hormone that prompts glucose to move from the blood into body cells, resulting in lower glucose level in the blood |
| Guard cells | Specialized cells that control the opening and closing of the pores on the surface of a leaf |
| Pathogen | An organism that invades the body, causing disease. |
| Antigen | A molecule found on the outer surfaces of cells that the immune system recognizes as either part of the body or an outside invader |
| Antibody | A protein, produced by the immune system, that either attacks invading pathogens or marks them for killing |
| Vaccines | A substance made of weakened, killed, or partial pathogens and designed to protect the body from future invasions of that pathogen |
| AIDS | (Acquired Immunodeficiency Syndrome) The disease that results when the HIV virus attacks the human immune system |
Created by:
mbarkley
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