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Cell Organelles
science grade 7
Question | Answer |
---|---|
Cell membrane | a covering that surronds the cell and controls materials going in and out |
nucleus | controls the cells activities and directs protein manufacturing in the cell. holds the chromosomes made of DNA and is surronded by a nucleur membrane |
chromosomes | made of DNA and carries the blue print for all of the cells activities |
cytoplasm | material between organelles, jelly-like substance that moves food and water around the cell |
cytoskeleton | a web of protein serves as a muscle and skeleton |
endoplasmic reticulum | tube-like canals(rouds)thatransport protein around the cell. rough ER is covered with ribosomes, smooth ER makes lipids and breaks down toxic materials |
ribosomes | protein making factories, frequently attached to endoplasmic reticulum, but can also float freely in the cytoplasm |
golgi complex | package protein to send to other places within and out of the cell. Hormones and enzymes are packaged here as well |
mitchondria | power house of the cell. sugar is broken down and with oxygen, energy is stored as ATP and released when needed |
Vacuoles | stores water, food, and waste until it is removed from the cell. Also aids in digestive enzymes in a plant cell |
lysossomes | contain digestive enzymes that break down food and protect the cell from foreign invaders (mainly found in animal cells) |
Chloroplasts | PLANT CELLS ONLY! green organelles that contain chlorophyll. the lace where photosynthesis takes place |
Cell wall | PLANT CELLS ONLY! strength and structure to cell. Made of cellulose, a non-living material, cell membrane is inside cell wall |