Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

10. Lipids

Lipid-Linked Membrane Proteins

Biochemistry

10. Lipids

Lipid-Linked Membrane Proteins

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Multiple Choice

Which of the following lipid-linked proteins are located primarily on the exterior surface of the membrane?

Prenylated proteins.

Myristoylated proteins.

Plamitoylated proteins.

GPI-linked proteins.

Farnesyl-linked proteins.

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Verified step by step guidance

Understand the types of lipid modifications that can anchor proteins to membranes. These include prenylation, myristoylation, palmitoylation, and glycosylphosphatidylinositol (GPI) anchoring.

Recognize that GPI-anchored proteins are unique because they are attached to the membrane via a glycosylphosphatidylinositol moiety, which is a glycolipid that anchors proteins to the exterior surface of the plasma membrane.

Differentiate between the locations of these lipid modifications: Prenylated, myristoylated, and palmitoylated proteins are typically found on the cytoplasmic side of the membrane, whereas GPI-anchored proteins are found on the extracellular side.

Recall that GPI anchors are added to proteins in the endoplasmic reticulum and are directed to the outer leaflet of the plasma membrane, making them accessible to the extracellular environment.

Conclude that among the options provided, GPI-linked proteins are the ones primarily located on the exterior surface of the membrane.