Grade 9 Science Quiz

Which group of compounds contains sugars, starch, and cellulose?

• Carbohydrate

• Protein

• Lipid

• Nucleic Acid

What is the term for a simple organic compound containing both a carboxyl and an amino group?

• Carbohydrate

• Amino Acid

• Enzyme

• Phospholipid

What is the substance on which an enzyme acts called?

• Active Site

• Substrate

• Monomer

• Functional Group

Which class of organic compounds are fatty acids or their derivatives and are insoluble in water?

• Protein

• Lipid

• Nucleotide

• Monosaccharide

What is the main constituent of natural fats and oils?

• Triglyceride

• Fatty Acid

• Peptide Bond

• Condensation Reaction

What is a lipid containing a phosphate group in its molecule called?

• Protein

• Phospholipid

• Nucleic Acid

• Monomer

Which complex organic substance is present in living cells and consists of many nucleotides linked in a long chain?

• Carbohydrate

• Protein

• Nucleic Acid

• Amino Acid

What is a compound consisting of a nucleoside linked to a phosphate group called?

• Peptide Bond

• Nucleotide

• Monomer

• Polymer

What type of chemical bond links two consecutive alpha-amino acids along a peptide or protein chain?

• Monosaccharide

• Peptide Bond

• Disaccharide

• Condensation Reaction

What is the term for a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements?

• Organic Compound

• Functional Group

• Monomer

• Polymer