Cells and Life

Which substances are macromolecules?

• sugars

• proteins

• vitamins

• minerals

Which substance is most common in cells?

• fat
• water
• amino acid
• plasma

Which substance is a lipid?

• RNA
• sugar
• cholesterol
• DNA

What does the cell theory state?

• that cells come from other cells
• that cells come only from animals
• that cells cannot be created or destroyed

What are the long chains of molecules that make up many substances in cells?

• lipids
• amino acids
• macromolecules
• simple molecules

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Which substance makes up 75% of the volume of cells?

• lipids
• water
• nucleic acids
• carbohydrates

Which characteristic of lipids makes them useful as protective barriers in cells?

• They contain starches
• They do not dissolve in water
• They are not macromolecules 
• They contain genetic material 

Which statement is part of the cell theory?

• All living things are made of cells.
• Cells are made of macromolecules.
• All objects on Earth are made of cells.
• Cells are composed of carbohydrates and lipids.

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Who invented the microscope which led to his discovery and naming of the cell?

• Rudolf Virchow
• Matthias Schleiden
• Robert Hooke
• Theodor Schwann

A long chain of amino acid molecules

• lipid
• protein
• carbohydrate
• nucleic acid

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