Which of the following structures is part of the glottis?

a. Lipase: Lipase is the enzyme responsible for breaking down fats into fatty acids and glycerol during digestion.

b. Maltase: Maltase is an enzyme that breaks down maltose into glucose molecules. It is involved in carbohydrate digestion.

c. Protease: Proteases are enzymes that break down proteins into amino acids. They are not involved in fat digestion.

d. Lactase: Lactase is an enzyme that breaks down lactose, the sugar found in milk, into glucose and galactose. It is involved in carbohydrate digestion.

a. The plasma membrane is composed of a bilayer of protein molecules: This is incorrect. The plasma membrane is primarily composed of a bilayer of phospholipids, with proteins interspersed within this bilayer.

b. The plasma membrane is selectively permeable: This is correct. The plasma membrane regulates the entry and exit of substances, allowing certain molecules to pass while restricting others.

c. The plasma membrane does not participate in cellular activities: This is incorrect. The plasma membrane is actively involved in various cellular activities, including signaling, transport, and maintaining homeostasis.

d. The plasma membrane receptors are specialized lipids: This is incorrect. Receptors on the plasma membrane are typically proteins, not lipids, which are involved in signal transduction and cellular communication.