What process permits the absorption of glucose into cells during digestion?

• A. Endocytosis
• B. Simple diffusion
• C. Facilitated diffusion
• D. Active transport

Answer: (D)

Verified step by step guidance

1. Understand the role of glucose in the body: Glucose is a vital source of energy for cells, and its absorption is crucial for maintaining cellular functions.
2. Identify the mechanism of glucose absorption: Glucose absorption into cells typically occurs through active transport, which requires energy to move glucose against its concentration gradient.
3. Differentiate between transport mechanisms: Active transport is distinct from other mechanisms like endocytosis, simple diffusion, and facilitated diffusion, as it involves the use of ATP to transport molecules.
4. Explore the role of transport proteins: In active transport, specific transport proteins, such as the sodium-glucose transport protein, are involved in moving glucose into cells.
5. Consider the energy requirement: Active transport requires energy in the form of ATP, which is used to change the shape of the transport protein, allowing glucose to enter the cell.