Unit 3: Macromolecules

Front 1

Which of the following is mostly hydrophobic?

1.Carbohydrates

2.Nucleic Acids

3.Lipids

4.Proteins

Back 1

Lipids

Front 2

Which of the following forms branched polymers?

1.DNA

2.Proteins

3.Carbohydrates

4.Lipids

Back 2

Carbohydrates

Front 3

Which of the following molecules is hydrophobic?1.Food colouring

2.Olive oil

3.Table Salt

Back 3

Olive Oil

Front 4

The cells of your body are surrounded by water. The outer layer of these cells is made of many non-polar molecules. What would happen if the outer layer of these cells was made of mainly polar molecules?

1.Water could not get in the cell.

2.The cells would be too heavy to float in water.

3.The cells would dissolve.

4.The cells could not interact with their environment.

Back 4

The cells would dissolve

Front 5

Which of the following is used for long term energy storage?

1.Carbohydrates

2.Nucleic Acids

3.Lipids

4.Proteins

Back 5

Lipids

Front 6

How will lipids respond when immersed in water?

1.The tails will orient away from the water

2.The heads will orient away from the water

3.The phospholipids will form crystals at the bottom of the solution

4.The phospholipids will dissolve evenly in the water

Back 6

The tails will orient away from the water

Front 7

What type of Molecule is shown here?

1.Carbohydrate

2.Amino Acid

3.Lipid

4.Nucleotide

Back 7

Amino Acid , the amine and carboxyl groups (R chain) attached to a central carbon Make this an amino acid

Front 8

Which of the following is NOT characteristic of unsaturated fatty acids?

1.Have bends in the fatty acid chain

2.Solid at room temperature

3.Have double bonds

4.Also called oils

Back 8

Solid at room temperature

Front 9

What type of molecule is shown here?

1.Carbohydrate

2.Lipid

3.Nucleotide

4.Amino Acid

Back 9

Nucleotide

Front 10

Which is not a function of proteins?

1.Form the bulk of cellular membranes

2.Move substances in/out of the cell

3.Recognition of specific particles

4.Maintains cell structure

Back 10

Form the bulk of cell membranes

Front 11

What monomer makes up an enzyme?

1.Amino Acid

2.Fatty Acid

3.Nucleic Acid

4.Protein

Back 11

Amino Acid

Front 12

what is the function of this molecule?

1.Energy Storage

2.Structure

3.Communication

4.Information storage

Back 12

Energy Storage

Front 13

The molecule shown here is:

1.Amino Acid

2.Carbohydrate

3.Lipid

4.Nucleotide

Back 13

Amino Acid

Front 14

What type of Molecule is shown here:

1.Carbohydrate

2.Lipid

3.Nucleotide

4.Amino Acid

Back 14

Carbohydrate, this is a monosaccharide.

Front 15

What type of molecule is shown here:

1.Amino Acid

2.Carbohydrate

3.Nucleotide

4.Lipid

Back 15

Nucleotide, this is an ATP molecule

Front 16

The ligand attaches to a protein at the:

1.Complementary site

2.Attachment site

3.Binding site

4.Ligand site

Back 16

Binding site

Front 17

What is the function of this molecule?

1.Structure

2.Information Storage

3.Energy storage

4.Communication

Back 17

Triglycerides are used for Energy Storage

Front 18

Enzymes are usually:

1.Carbohydrates

2.Nucleic Acids

3.Lipids

4.Proteins

Back 18

Protein structures provide the complexity needed for enzyme function

Front 19

Which of these functional groups is hydrophilic?

1.Alcohols

2.Carboxyl

3.Phosphate

4. All of the above

Back 19

All of the above are hydrophillic (water loving)

Front 20

Which groups of macro molecules are used by humans for energy storage?

1.Lipids

2.Nucleotides

3.Carbohydrates

4.None of these

5.All of these

Back 20

Carbohydrates, lipids and Nucleotides are all used for

Front 21

Detergents are:

1.Polar

2.Non-Polar

3.Both

4.Neither

Back 21

Detergents are both polar and non-polar

Front 22

Which of the following molecules are organic ?

Back 22

Caffeine, Butane, and Styrene are all organic

Front 23

Proteins begin with an amino group and end with carboxyl group.In the case of nucleic acids:

1.The begin at the 5' end and end at the 2' end

2.They begin at the 5' end and end at the 3'

3.They begin at the 3' and end at the 5' end

4.It is the same in nucleic acids

Back 23

They begin at the 5' end and end at the 3'.

Front 24

what is the function of this molecule:

1.Energy storage

2.Structure

3.Communication

4.Information storage

Back 24

Steroids (such as estrogen) are used for communication

Front 25

Denaturation:

1.Breaks the peptide bonds between amino acids

2.Unravels the 3D protein structure

3.Forms the bonds that hold together the 3D structure of proteins

4.Forms peptide bonds between amino acids

Back 25

Denaturation unravels the 3D protein structure but does not break apart the chain of amino acids

Front 26

What molecule is shown here?

1.Carbohydrate

2.Lipid

3.Nucleotide

4.Amino Acid

Back 26

Lipid

Front 27

Why do enzymes work poorly at below optimum temperature?

1.The enzyme is unable to protonate the substrate

2.the enzyme is denatured

3.The substrate cant bind to the active site

4.The substrates do not have enough kinetic energy

Back 27

At lower temperatures, substrates have lower kinetic energy which slows down the reactions.