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GED Life Science
Lessons 1-2 Cell Structures/Functions/Processes/Energy
| Term | Definition |
|---|---|
| cell | the basic unit of life |
| unicellular | consists of a single cell (such as bacteria and protozoa) |
| multicellular | consists of multiple cells (such as plants and animals) |
| cell membrane | a structure that keeps the cell's contents separate from its external environment |
| cytoplasm | a watery, jellylike substance that can include other cell structures |
| genetic material | coded instructions for carrying out the cell's activities |
| prokaryotes | bacteria |
| nucleus | contains genetic material that directs the activities of the cell |
| eukaryotic cells | a cell that contains the genetic material within a nucleus (all plant and animal cells) |
| cell wall | gives the cell shape and rigidity (in a plant cell) |
| chloroplasts | absorb sun's energy for the production of food (in a plant cell) |
| vacuole | stores water, nutrients, wastes, and other substances (in a plant cell) |
| ribosomes | produce proteins (in a plant cell) |
| mitochondrion | cell's energy is produced here (in a plant cell) |
| photosynthesis | a process where green plants, some algae, and some bacteria use energy from sunlight to make food (oxygen is a by-product) |
| glucose | a simple sugar |
| chlorophyll | a pigment that gives plants their green color |
| carbohydrates | As a result of photosynthesis, a place where energy is stored |
| cellular respiration | A process in which carbohydrates are broken down to release energy (carbon dioxide is a by-product) |
Created by:
jpiittmann
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