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Choose the correct answer

Which is true of phosphatidylserine?

Normally restricted to the outer face of the plasma membrane and contribute to the glycocalyx and cell functions such as sperm-egg fusion

Normally restricted to inner face of the plasma membrane; It is negatively charged and can interact with intracellular proteins; when exposed on the outer plasma membrane it serves as a signal for the cell to be phagocytosed during apoptosis

Normally restricted to the inner face of the plasma membrane and serves as a scaffold for intracellular proteins and can be hydrolised by phospoholipase C to inositol and triphosphate for cell signalling

Is a transmembrane protein involved in moving chemical signals across the plasma membrane