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chapter 9:1 cells

QuestionAnswer
Cells Cells: The basic unit of structure and function in living things
Microscope Microscope: An instrument used to make small objects look larger
Cell theory Cell theory: A widely accepted explanation of the relationship between cells and living things.
Compound Microscope Compound Microscope: Focuses light through lenses to produce a magnified image, using two lenses.
Electron Microscope Electron Microscope: Using beams of electrons to produce a magnified image.
Magnification Magnification: The condition of things appearing larger then they are, using convex lenses (center is thicker than the edges)
Resolution Resolution: The ability to see details more clearly, the higher the resolution the sharper the image.
Elements Elements: any substance that cannot be broken down into simpler substances.
Compounds Compounds: when 2 or more elements chemically combine.
Organic compounds Organic compounds: carbohydrates, lipids, proteins, and nucleic acids. Organic compounds must contain carbon.
Inorganic compounds Inorganic compounds: water. Inorganic compounds DO NOT contain carbon.
Carbohydrates Carbohydrates: energy rich organic compounds made of carbon, hydrogen, and oxygen. Items that have sugar and starches would be carbohydrates. Examples: potatoes, pasta, rice, and bread.
Lipids Lipids: Fats, oils, and waxes. Examples: whole milk, ice cream, and fried foods.
Proteins Proteins: large organic molecules made mostly of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. Examples: meat, dairy, fish, nuts, beans.
Enzymes Enzymes: a group of proteins that helps speed up chemical reactions in living things.
Nucleic Acids Nucleic Acids: Long organic compounds made of carbon, oxygen, hydrogen, nitrogen, and phosphorus. Nucleic acids contain the instructions that carry out all the functions of life.
DNA DNA: The genetic material that carries information about an organism and is passed from parent to offspring. Double Helix: Shape of the DNA molecule
A. Water in cells A. Water is needed for most chemical reactions in cells
B. Water in cells B. Water helps cells keep their shape.
C. Water in cells C. Water helps cells maintain their temperature
D. Water in cells D. Water helps cells carry substances in and out of them
Created by: user-2003738
 

 



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