Exploring Protein Structure and Function

What are the building blocks of proteins?

• Nucleotides

• Amino acids

• Fatty acids

• Monosaccharides

Which atoms are amino acids composed of?

• Carbon, hydrogen, oxygen, nitrogen, and sulfur

• Carbon, hydrogen, oxygen, and phosphorus

• Carbon, hydrogen, nitrogen, and phosphorus

• Carbon, hydrogen, oxygen, and calcium

What type of amino acids have carbon-rich side chains?

• Neutral amino acids

• Charged amino acids

• Hydrophobic amino acids

• Hydrophilic amino acids

What type of bond links amino acids together in a protein?

• Covalent bond

• Ionic bond

• Hydrogen bond

• Peptide bond

What secondary structure is formed by hydrogen bonds between backbone atoms of nearby amino acids?

• Beta sheets

• Alpha helix

• Random coil

• Triple helix

What is the shape of many proteins that have hydrophobic side chains sheltered inside?

• Helical

• Fibrous

• Globular

• Linear

What molecule does hemoglobin form a pocket to hold?

• Heme

• ATP

• NADH

• Glucose

What is the function of antibodies?

• Store iron

• Regulate blood sugar levels

• Break down carbohydrates

• Recognize and bind to foreign molecules

What protein forms a strong triple helix for structural support?

• Ferritin

• Insulin

• Collagen

• Hemoglobin

Which enzyme begins the breakdown of carbohydrates in our saliva?

• Pepsin

• Alpha amylase

• Trypsin

• Lipase