Cell Parts and Processes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| located in nucleus; strands containing genetic material that directs functions of cell | chromatin
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| located in nucleus; where ribosomes are made | nucleolus
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| region between cell membrane and nucleus; contains organelles | cytoplasm
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| tiny structures located in cytoplasm that carry out specific functions; include mitochondria, lysosomes, and vacuoles etc. | organelles
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| produce energy for the cell; think power plant | "mighty" mitochondria
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| looks like a maze of passageways; used to carry proteins and other materials; think city roads/sidewalks | endoplasmic reticulum or E.R.
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| small,dark grainlike bodies; protein producing "factories" | ribosomes
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| flattened collection of sacs and tubes; receive newly formed materials, package, and then distribute them to other cell parts; think mail room | Golgi bodies
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| storage areas (food, water, waste) | vacuoles
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| cell's clean-up crew | lysosomes
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| found in plant and bacteria cells; tough, flexible layer that protects and supports cell | cell wall
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| plant cell structure; green structures floating in cytoplasm capture sun's energy for photosynthesis | chloroplasts
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| separates cell from its environment; helps to control substances that enter and leave cell | cell membrane
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| controls activities of cell; contains chromatin and the nucleolus | nucleus
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| process by which molecules move from an area of higher concentration to lower concentration | diffusion
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| the movement of materials througha cell membrane without using cellular energy | passive transport
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| 2 examples of passive transport | diffusion and osmosis (diffusion of water)
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| 2 examples of active transport | use of transport proteins and engulfing (how amoebas eat)
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| 2 examples of substances that enter/leave a cell through passive transport | water, oxygen, carbon dioxide
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| 2 examples of substances that enter/leave a cell through active transport | sodium, calcium, potassium
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| the smaller the cell, the _ the surface area to volume ratio | smaller
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| membrane that allows some but not all substances pass through | semi-permeable
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| true or false: molecules are always moving | true
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| why cells are small | smaller cells have a higher surface area to volume ratio which allows substances to enter/leave the cell quickly and efficiently; this is necessary for the cell to survive
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| compare/contrast osmosis and diffusion | both are forms of passive transport; diffusion is the passive transport of any molecule across a selectively permeable membrane; osmosis is the passive transport of WATER molecules across selectively permeable membrane
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Created by:
mfarleigh
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