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39 Cards in this Set
- Front
- Back
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First person to use a microscope
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Robert Hooke
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Year Robert Hook used microscope
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1665
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Used a mic. to observe pond water
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Leeuwenhoek
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Stated that living things are everywhere
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Leeuwenhoek
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Called moving organisms animalcules
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Leeuwenhoek
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3 parts to the cell theory
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all living things contain at least one cell, cells are the basic unit of structure and function in living things, new cells are produced from existing cells
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Who discoverd all plants are made of cells? What year?
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Schleiden, 1838
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Who discovered all animals are made of cells? What year?
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Schwann, 1839
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When cells are dissected...
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they die
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Who discovered that new cells could be reproduced only from existing ones? What year?
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Virchow, 1855
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Before the cell theory, what was the belief called?
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spontaneous generation
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Who challenged spontaneous generation with rotting meat?
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Redi
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Who proved that spontaneous generation is a myth? What method did he invent?
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Pasteur, pasteurization (adding heat sterilises food, tools. containers perserve them)
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filamentous
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strings of single cells
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prokaryote cell
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smaller and simpler
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Cell walls are in what two cells?
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plants, and most prokaryots
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cell walls are made of
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cellulose
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nucleus contains
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DNA
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material inside the nucleus is called
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chromatin
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What forms chromosomes when it condenses?
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chromatin
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What is the function of the nucleolus?
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Begins to make ribosomes
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What is the function of the nucleolus
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creates ribosomes
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What is the nucleus surrounded by?
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nuclear envelope
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What do some cells have that help support the cell?
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a cytoskeleton
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what are microtubules
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hollow tubes of protein that maintain cell shape, help in cell division
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what do microtubules form in animal cells
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centrioles
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what do microtubules form in some cells (NOT ANIMAL CELLS)
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cilia and flagella (enable cells to move)
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what are ribosomes
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small particles of rna that assemble the proteins
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what is the endoplasmic reticulum
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the organelle where components of the cell membrane are made
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what is the difference between the smooth and rough er?
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rough has ribosomes on the outside of it
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what is the golgi apparatus
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where enzymes attach carbs. to proteins
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what are lysosomes
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organelles w/ ensymes, break down stuff
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what is a vacuole
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where cells store materials
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what are found in plants that use energy from teh sun to make food?
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chloroplasts
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the green pigment _____ is located in the chloroplast
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chlorophyll
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what is used to power growth, development, and movement?
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mitochondria
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cells work together to form ___
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tissue, which in turn form organs
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how do animal cells move?
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crawl with pseudopods
swim with flagellum swim fast with cilia |
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what is the endosymbiont theory
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a prokaryote "eats" and smaller one, which lives inside it and produces glucose
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