What is the job of the GLUT-4 transporters?

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Prepare for the PLTW Biomedical Science Test. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for your exam!

Multiple Choice

What is the job of the GLUT-4 transporters?

Explanation:
GLUT-4 are glucose transporter proteins that enable glucose to move from the blood into cells by facilitated diffusion, mainly in muscle and fat tissue. When insulin signals, GLUT-4-containing vesicles move to and fuse with the cell membrane, increasing glucose uptake into the cytoplasm. This process uses no direct energy and helps lower blood glucose after meals. They are not water channels, they don’t break down glucose, and they don’t trigger immune signaling.

GLUT-4 are glucose transporter proteins that enable glucose to move from the blood into cells by facilitated diffusion, mainly in muscle and fat tissue. When insulin signals, GLUT-4-containing vesicles move to and fuse with the cell membrane, increasing glucose uptake into the cytoplasm. This process uses no direct energy and helps lower blood glucose after meals. They are not water channels, they don’t break down glucose, and they don’t trigger immune signaling.

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