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Stack #4630135

QuestionAnswer
Cells The basic unit of structure and function in living things
Microscope An instrument used to make small objects look larger.
Cell theory A widely accepted explanation of the relationship between cells and living things. A. All living things are composed of cells B. Cells are the basic units of structure and function in living things C. All cells are produced fro
Compound Microscope: Focuses light through lenses to produce a magnified image, using two lenses
Electron Microscope Using beams of electrons to produce a magnified image.
Magnification The condition of things appearing larger then they are, using convex lenses (center is thicker than the edges)
Resolution The ability to see to details more clearly, the higher the resolution the sharper the image.
Multicellular Made of many cells
Unicellular Made of only ONE cell
Specialized cells Cells that are designed to do specific jobs that help the entire organism function.
Cells make tissues tissues make organs, organs make organ systems, organ systems make an organism.
Elements any substance that cannot be broken down into simpler substances.
Compounds when 2 or more elements chemically combine.
Compounds that cells need:
Organic compounds carbohydrates, lipids, proteins, and nucleic acids. Organic compounds must contain carbon.
inorganic compounds water. Inorganic compounds DO NOT contain carbon.
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 Fats, oils, and waxes. Examples: whole milk, ice cream, and fried foods
Proteins large organic molecules made mostly of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. Examples: meat, dairy, fish, nuts, beans.
Enzymes a group of proteins that helps speed up chemical reactions in living things.
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 The genetic material that carries information about an organism and is passed from parent to offspring. Double Helix: Shape of the DNA molecule
Water in cells A. Water is needed for most chemical reactions in cells B. Water helps cells keep their shape. C. Water helps cells maintain their temperature D. Water helps cells carry substances in and out of them
RULE #1 Must be made of Cells
RULE # 2 Must be organized: Organization – cells specialize to perform specific functions. Levels: cells make tissue, tissue makes organs, organs make organ systems, organ systems make organisms.
multicellular made of many specialized cells
unicellular made of only 1 cell
RULE # 4 Homeostasis - organism’s response to the environment that keeps conditions suitable for life
RULE # 5 Growth and Development
RULE # 6 Reproduction
asexual all or part of the organism is used to make a new organism, offspring are genetically identical to parent
sexual two cells from different individuals combine to form the first cells of a new organism, traits are inherited from both parents
Created by: user-2006837
 

 



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