8.Quiz on Enzymes and Digestion

What are the three main food groups?

• Vitamins, Minerals, Water

• Carbohydrates, Proteins, Lipids

• Carbohydrates, Vitamins, Fats

• Proteins, Sugars, Water

What elements make up carbohydrates?

• Oxygen, Phosphorus, Nitrogen

• Hydrogen, Sulfur, Carbon

• Nitrogen, Oxygen, Carbon

• Carbon, Oxygen, Hydrogen

What is the role of carbohydrase enzymes?

• Convert glucose into starch

• Synthesize proteins from amino acids

• Hydrolyze lipids into fatty acids

• Break down carbohydrates into simple sugars

Where does carbohydrate digestion begin?

• In the mouth

• In the stomach

• In the small intestine

• In the large intestine

What enzyme in saliva helps digest starch?

• Cellulase

• Lipase

• Protease

• Amylase

What is hydrolysis?

• Breaking down a large molecule using water

• Combining small molecules to form larger ones

• The process of digestion in the stomach

• Absorption of nutrients in the intestines

What is maltose broken down into?

• Glucose, Fructose, Galactose

• Starch and Glycogen

• Amino Acids

• Fatty Acids

What is the test for starch?

• Biuret solution

• Benedict's solution

• Litmus paper

• Iodine solution

What color indicates the presence of starch in a sample?

• Yellow

• Red

• Blue/black

• Green

What is the test for reducing sugars?

• Benedict's solution

• Iodine solution

• Biuret solution

• Litmus paper