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Ryan Ch. 2
Ryan Ch. 2 Cell Structure and Function
| Question | Answer |
|---|---|
| diffusion | process that spreads substances through a gas or liquid |
| non-infectious disease | disease caused by malfunction of an organ system |
| chloroplast | organelle that makes food from sunlight, water, and carbon dioxide |
| musculoskeletal system | organ system that supports the body and enables movement |
| immune system | organ system that fights disease and foreign agents |
| organ | two or more types of tissue that work together to perform a function |
| circulatory system | organ group that carries oxygen and removes wastes from the body |
| nervous system | organ system that controls movement and other organs |
| infectious disease | disease caused by harmful organisms or viruses |
| tissue | group of cells with a common structure and function |
| osmosis | type of diffusion that allows water to pass but not the solutes |
| cytoplasm | gel-like substance that surrounds the internal parts of the cell |
| nucleus | directs cell activities and carries genetic information |
| hormones | chemicals that carry information to certain cells |
| organelle | structure that has a specific job within the cell |
| complex organisms | need more cells, energy, and organ systems to maintain life |
| special proteins produced by the immune system to fight viruses | antibodies |
| brain | controlls all other organ systems |
| a sugar plants produce through photosynthesis | glucose |
| photosynthesis | process plants go through to make food |
| mitochondria | perform respiration in both plant and animal cells |
| cell division | allows organisms to grow and replace old cells |
| skin | bodies largest organ |
| respiration | glucose combines with oxygen to produce CO2 and H2O. Takes place in the mitochondria and is the opposite of photosynthesis |
| specialized cells | specific structures in a cell that perform specific tasks |
| endocrine system | makes and sends out hormones |
| urinary system | removes liquid wastes |