ch. 2.1 review: macromolecules & cell theory

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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