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18 Cards in this Set
- Front
- Back
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What is observation?
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to watch something using your senses to gather information about the world around you
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What is a prediction?
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making an inference about a future event based on evidence or experience
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What did Anton Van Leeuwenhoek do?
He observed__________with a ___________microscope and called what he discovered____________ |
lakewater and scrapings from teeth and gums
simple animalcules |
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What did Robert Hooke do? He observed_______ with a ____________microscope and called what he discovered___________.
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cork
compound cells |
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What is the function of mitochondria?
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powerhouse of the cell
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What is the function of the cell membrane?
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barrier between inside and outside of cell
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What is the function of the nucleus?
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brain of the cell
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What is the function of chloroplast?
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Captures energy from the sun and makes food for the cell
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Cell Wall
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In a plant cell, it gives the cell a rigid, box like shape
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What organelles are only found in plant cells?
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cell wall
chloroplast |
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Give 2 examples of carbohydrates
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sugars and starches
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Give 2 examples of proteins
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meat and eggs
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Give 2 examples of lipids
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fats and oils
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Give 2 examples of nucleic acids
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DNA & RNA
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Why is water important to cells? Give 2 reasons.
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1. Helps cells keep their shape and size.
2. Takes part in many chemical reactions |
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What is diffusion
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The way molecules move across the cell membrane
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What is osmosis?
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the diffusion of water molecules
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You are stranded on an island with no fresh water. Why can't you drink ocean water?
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Because of the salt. It will dehydrate you.
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