Functional Groups and Biomolecules practice

Choose the term that best describes the relationship between the 2 sugar molecules

• Structural Isomers

• Geometric isomers

• Enantiomers

• Isotopes

Which structural groups does this molecule contain? (check all that apply)

• Hydroxyl group

• Amino group (amide)

• Carboxyl

• Carbonyl

• Sulfhydryl

Which action could produce a carbonyl group?

• the replacement of the hydroxyl of a carboxyl group with

  hydrogen

• the addition of a thiol to a hydroxyl

• the addition of a hydroxyl to a phosphate

• the replacement of the nitrogen of an amine with oxygen

• the addition of a sulfhydryl to a carboxyl

Given what you know about the electronegativity of oxygen, predict which of the molecules shown in the figure below would be the stronger acid.

• Molecule A

• Molecule B

Which of the following categories includes all the others on the list?

• Monosaccharide

• Carbohydrate

• Polysaccharide

• Starch

The enzyme amylase can break the glycosidic linkages between glucose monomers only if the monomers are in (alpha) form. Which of the following could amylase break down?

• Glycogen, starch, and amylopectin

• Glycogen and cellulose

• Cellulose and Chitin

• Starch, chitin and cellulose

Which of the following is TRUE of UNsaturated fats?

• They are more common in animals than plants

• They have double bonds in the carbon chains of their fatty acids

• They generally solidify at room temperature

• They contain more hydrogen than do saturated fats having the same number of carbon atoms.

What (specifically) type of bond is shown in blue? (Between the C-N)

• Peptide bond

• Glycosidic linkage

• Covalent bond

• Hydrogen bond

What characteristics would you expect this amino acid to have?

• Polar/Hydrophobic

• Polar/Hydrophilic

• Nonpolar/Hydrophobic

• Acidic/Polar

What properties would you expect this amino acid to possess?

• Nonpolar hydrophobic

• Nonpolar hydrophilic

• Polar/acidic

• Polar/basic