Biology: Semester 1
Terms
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- Homeostasis
- maintaining a balance between an organism (or cell) and it's environment
- Are skin cells dead or alive?
- dead
- What is a solute?
- the substance being dissolved
- What is a solvent?
- the substance doing the dissolving
- What is a mixture?
- two or more substances combined which may be easily separated by ordinary physical means
- What are some examples of mixtures?
- Nuts/bolts, Peas/carrots, Lucky Charms (cereal and marshmellows), pizza (crust and toppings)
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Mixtures or Compounds
Easily separated by physical means - Mixture
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Compounds or Mixtures
Not easily separated by physical means - Compounds
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Compounds or Mixtures
Not joined by chemical bonds - Mixtures
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Compounds or Mixtures
Joined by chemical bonds - Compounds
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Compounds or Mixtures
Form a totally new substance with properties different from the individual components - Compounds
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Compounds or Mixtures
Do not form a totally new substance with properties different from the individual components - Mixtures
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True or false
Cell do not need a liquid environment to survive - False, they do need a liquid environment to survive
- a)__________ are b)____________ than their parts
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a)Compounds
b) different - Water is a a)_______ NOT a b)________.
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a)solvent
b)solution - A solution is a a)____________ in which the solute is b)_________ distributed in the solvent and c)______ settle out
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a)mixture
b)evenly
c) doesn't - Solute particles are generally _______ than the solvent particles
- smaller
- A solution may be a mixtures of ________, __________, or ________.
- solids, liquids, or gases