Biological molecules week 4 review 3A

Which elements are present in alpha glucose?

• Carbon

• Hydrogen

• Oxygen

• Nitrogen

• Sulfur

Which elements are present in triglycerides?

• Carbon

• Hydrogen

• Oxygen

• Nitrogen

• Phosphorus

What bond is represented by C?

• Hydrogen

• Glycosidic

• Peptide

• Disulfide

• Ionic

What type of bonds are present in amylose?

• 1-6 Glycosidic

• 1-4 Glycosidic

• 1-4 & 1-6 Glycosidic

Which of the following are found in plants?

• Amylose

• Amylospectin

• Glycogen

• Cellulose

Triglycerides contain...

• Glycerol

• Glycogen

• 3 fatty acids

• Ester bonds

The condensation of 3 fatty acids and 1 molecule of glycerol would produce which of the following?

• Three molecules of water

• Three ester bonds

• A phospholipid

• An unsaturated fatty acid

Which statements are true for unsaturated fatty acids?

• They contain the maximum number of C-H bonds

• The contain at least 1 C=C in the hydrocarbon fatty acid tail

• They have kinks in their chains

• They are only found in animal fats

Which of these is not a role of triglycerides in humans?

• Energy store

• Metabolic source of water

• Protection of organs

• Buoyancy

Which of the following is NOT correct when discussing the biochemical test for reducing sugars?

• Add Benedict's solution

• Heat to 80 degrees celcius

• A brick red precipitate is produced if the result is positive

• A negative result is a blue colour

Answer explanation

It should be Benedict's REAGENT not solution