Making Lipids

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What is the function of phospholipids in cells?

Make membranes

Where is TAG (triacylglycerol) made in the cell?

Smooth ER

What is the function of seipin in lipid droplet formation?

Assists budding from ER lipids

What type of ER is associated with the accumulation of TAG?

<p>Smooth ER</p> Signup and view all the answers

What is the function of perilipins?

<p>Coating lipid droplets</p> Signup and view all the answers

Where does triacylglycerol synthesis occur?

<p>Smooth ER bilayer</p> Signup and view all the answers

What is the role of seipin in lipid droplet biogenesis?

<p>Facilitating the growth of nascent lipid droplets</p> Signup and view all the answers

What is the definition of amphipathic?

<p>Having both hydrophilic and hydrophobic parts</p> Signup and view all the answers

Where are enzymes metabolizing phospholipids located?

<p>All membranes except the cytosol</p> Signup and view all the answers

What is the function of phosphatidylinositol 4,5-bisphosphate (PIP2) at the cell membrane?

<p>Regulate cellular functions</p> Signup and view all the answers

Where are seipins and perilipins involved in the cell?

<p>Lipid droplets</p> Signup and view all the answers

What is the starting point for phospholipids?

<p>Phosphatidic acid</p> Signup and view all the answers

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