Question

6 multiple choice 2 points which is true about phospholipids? the heads are hydrophilic they make the membrane permeable to charged particles the heads are hydrophobic the tails are amphipathic 7 multiple choice 2 points the plasma membrane has the consistency of jello a plastic polymer olive oil whipped cream 8 multiple choice 2 points the movement of ions across a semipermeable membrane, down their electrochemical gradient in the electron transport chain is called dehydration phosphorylation hydrolysis chemiosmosis

Explanation:

• For question 6: Phospholipids have hydrophilic heads and hydrophobic tails. The membrane is not permeable to charged particles due to the hydrophobic interior. Amphipathic refers to having both hydrophilic and hydrophobic parts, which is true of phospholipids as a whole, not just the tails.
• For question 7: The plasma membrane has a consistency similar to olive - oil as it is a fluid - mosaic structure with a lipid - based composition that allows for fluidity.
• For question 8: The movement of ions across a semi - permeable membrane down their electrochemical gradient in the electron transport chain is called chemiosmosis. Dehydration is a reaction type, phosphorylation involves adding a phosphate group, and hydrolysis is the breaking of a bond with water.

Answer:

1. the heads are hydrophilic
2. olive oil
3. chemiosmosis