Cell Structure and Function

Which pyrimidine base is unique to RNA?

• Adenine
• Cytosine
• Thymine
• Uracil

What is the main storage form of carbohydrates in animals?

• Starch
• Cellulose
• Sucrose
• Glycogen

Which enzyme catalyzes the breakdown of lactose?

• Maltase
• Amylase
• Invertase
• Lactase

What is the function of hemoglobin?

• Digests fats
• Synthesizes DNA
• Transports oxygen in the blood
• Regulates blood sugar

What is the role of collagen in the body?

• Carries oxygen
• Transports nutrients
• Provides structural support
• Regulates hormones