ch. 2.1 review: macromolecules & cell theory
TRANSCRIPT
Ch. 2.1:Cells
http://koning.ecsu.ctstateu.edu/cell/cell.html
1. What is cell theory?
Cell theory
All living things have cells
Cells are the smallest unit of
life
All cells come from
preexisting cells
Definition of Cell
A cell is the smallest unit that is capable of performing life
functions.
Which is NOT part of the cell theory?
A. B. C. D.
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A. All cells come from preexisting cells
B. All cells contain a nucleus
C. All living things have cells
D. Cells are the smallest unit of life
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Examples of CellsAmoeba Proteus
Plant Stem
Red Blood Cell
Nerve Cell
Bacteria
2. What basic substances make up cells?
Cell substances
Nucleic Acids Proteins Lipids Carbohydrates
Water
Macromolecules:
2. What basic substances make up cells?
• Add information as branches off of your concept map:
Water: (not a macromolecule)• 70% of a cell’s volume• Dissolves substances
What are Macromolecules?
Large molecules that form when smaller molecules joined together
MacromoleculesWater Nucleic
AcidsProteins Lipids Carbohydrates
Definition
Water makes up ___% of a cell’s volume
Examples
Importance to the cell
2. What basic substances make up cells?
MacromoleculesWater Nucleic
AcidsProteins Lipids Carbohydrates
Definition
Water makes up ___% of a cell’s volume
Long chains of nucleotides
Long chains of Amino acids
Large macromolecule that does not dissolve in water
Sugar molecules (1, 2, or long chain)
Examples
DNARNA
enzymeshair (horns,feathers)
fatsoils
sugarsstarchcellulose
Importance to the cell
• dissolves substances
• insulates
• carryhereditaryInformation
• used tomakeproteins
• regulatecellProcesses
• providestructuralsupport
• store largeamounts ofEnergy
• formProtective barrieraroundCells & cell parts
• supply energyfor cellprocesses• providestructuralsupport
2. What basic substances make up cells?
Which substance includes DNA and RNA?
A. B. C. D. E.
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A. CarbohydratesB. LipidsC. Nucleic AcidsD. ProteinsE. Water
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Which is NOT a macromolecule?
A. B. C. D. E.
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A. CarbohydratesB. LipidsC. Nucleic AcidsD. ProteinsE. Water
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Which 2 macromolecules store energy?
A. B. C. D.
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A. Carbohydrates & ProteinsB. Lipids & ProteinsC. Nucleic Acids & LipidsD. Lipids & Carbohydrates
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Which substance acts as a protective barrier?
A. B. C. D. E.
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A. CarbohydratesB. LipidsC. Nucleic AcidsD. ProteinsE. Water
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Which substance is made up of sugars?
A. B. C. D. E.
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A. CarbohydratesB. LipidsC. Nucleic AcidsD. ProteinsE. Water
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Which substance makes up 70% of the cells volume?
A. B. C. D. E.
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A. CarbohydratesB. LipidsC. Nucleic AcidsD. ProteinsE. Water
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