Topic 1.2

Multiple Choice

Life is made up of mostly the following elements:

• Carbon, Hydrogen, Oxygen, Nitrogen

• Water

• Carbohydrates, Lipids, Nucleic Acids, Proteins

Multiple Choice

Life is made up of the folloing Macromolecules mostly:

• Carbon, Oxygen, Nitrogen, Hydrogen

• Carbohydrates, Proteins, Lipids, Nucleic Acids

• Water, Oxygen, Carbon dioxide

• W

Match

Match the following

• Lipids

• Carbohydrates

• Nucleic Acids

• Proteins

• Inorganic ions

provide a concentrated source of energy.

a major component of cellular membranes

Providing usable energy as glucose

in energy storage. 

Are involved in cellular recognition.

encode information for the organism.

energy carrier

Enzymes.

Structural materials.

Transport

Movement.

They participate in metabolic reactions. 

They are components of larger organic molecules

• provide a concentrated source of energy.

  a major component of cellular membranes

• Providing usable energy as glucose

  in energy storage. 

  Are involved in cellular recognition.

• encode information for the organism.

  energy carrier

• Enzymes.

  Structural materials.

  Transport

  Movement.

• They participate in metabolic reactions. 

  They are components of larger organic molecules

Multiple Choice

How are valence electrons important?

• They are shared or transferred when forming chemical bonds

• They determine which isotopes can be made

• They are involved in water molecules only

• All choices are correct