Which of the following is not true about membrane phospholipids? Group of answer choices They have...

Which of the following is not true about membrane phospholipids?

Group of answer choices

They have hydrophilic tails in the interior of the membrane.

All of the options are true of membrane phospholipids

They are found in the plasma membrane of plant cells

They can move laterally in the membrane

They will spontaneously form a lipid bilayer in an aqueous environment

Solutions

Expert Solution

Question:- Which of the following is not true about membrabe phospholipids?

Sol:- They have hydroohilic tails in the anterior of the membrane.

Explanation:- The basic structure of the plasma membrane is the lipid bilayer. This bilayer is composed of two leaflet of amphipathic lipid molecules. Whose polar head groups are in contact with the intra or extra cellular aqueous phase. Whereas their non polar tails face each other, constituting the hydrophobic Interior of the membrane.

Phospholipids tail portion is not hydrophilic, actually tail is hydrophobic, so first option is not true.

Phospholipids are found in the plasma membrane of the plant cell, so this option is the right option about phospholipid.

Phospholipids can move laterally in the membrane, this is the right option because lipid bilayer is not rigid and static structure. In a lipid bilayer, lipid molecules can rotate freely around their long axis ( rotational motion) and diffuse laterally ( lateral motion) within each leaflet. Phospholipid molecules spontaneously form bilayer in aqueous environments, this is also right option because phospholipid molecules spontaneously form bilayer in aqueous environment and this is energetically most favourable arrangement.

All of the options are true of membrane phospholipids,

No, this is wrong option because here all option is not true.

gladiator answered 8 months ago

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