To determine which type of movement is least likely for a phospholipid in the cell membrane, we need to consider the nature of each movement:

A. Flexion of the carbon chain tails: This involves the bending or flexing of the fatty acid tails of the phospholipid. This is a common and frequent movement due to the fluid nature of the lipid tails.

B. Flip-flop: This involves the phospholipid moving from one leaflet of the bilayer to the other. This is a rare event because it requires the hydrophilic head to pass through the hydrophobic core of the membrane, which is energetically unfavorable.

C. Lateral diffusion: This involves the phospholipid moving sideways within the same leaflet of the bilayer. This is a common and frequent movement due to the fluid nature of the membrane.

D. Rotation: This involves the phospholipid rotating around its axis. This is a common and frequent movement due to the fluid nature of the membrane.

E. Bumping into proteins: This involves the phospholipid colliding with membrane proteins. This is a common and frequent occurrence due to the crowded environment of the membrane.

Based on the above analysis, the least likely movement for a phospholipid in the cell membrane is:

B. Flip-flop

Question

To determine which type of movement is least likely for a phospholipid in the cell membrane, we need to consider the nature of each movement:

A. Flexion of the carbon chain tails: This involves the bending or flexing of the fatty acid tails of the phospholipid. This is a common and frequent movement due to the fluid nature of the lipid tails.

B. Flip-flop: This involves the phospholipid moving from one leaflet of the bilayer to the other. This is a rare event because it requires the hydrophilic head to pass through the hydrophobic core of the membrane, which is energetically unfavorable.

C. Lateral diffusion: This involves the phospholipid moving sideways within the same leaflet of the bilayer. This is a common and frequent movement due to the fluid nature of the membrane.

D. Rotation: This involves the phospholipid rotating around its axis. This is a common and frequent movement due to the fluid nature of the membrane.

E. Bumping into proteins: This involves the phospholipid colliding with membrane proteins. This is a common and frequent occurrence due to the crowded environment of the membrane.

Based on the above analysis, the least likely movement for a phospholipid in the cell membrane is:

B. Flip-flop

Knowee AI · Accepted Answer

To determine which type of movement is least likely for a phospholipid in the cell membrane, we need to consider the nature of each movement:

A. Flexion of the carbon chain tails: This involves the bending or flexing of the fatty acid tails of the phospholipid. This is a common and frequent movement due to the fluid nature of the lipid tails.

B. Flip-flop: This involves the phospholipid moving from one leaflet of the bilayer to the other. This is a rare event because it requires the hydrophilic head to pass through the hydrophobic core of the membrane, which is energetically unfavorable.

C. Lateral diffusion: This involves the phospholipid moving sideways within the same leaflet of the bilayer. This is a common and frequent movement due to the fluid nature of the membrane.

D. Rotation: This involves the phospholipid rotating around its axis. This is a common and frequent movement due to the fluid nature of the membrane.

E. Bumping into proteins: This involves the phospholipid colliding with membrane proteins. This is a common and frequent occurrence due to the crowded environment of the membrane.

Based on the above analysis, the least likely movement for a phospholipid in the cell membrane is:

B. Flip-flop

Which type of movement is LEAST likely for a phospholipid in the cell membrane? [2 marks]A flexion of the carbon chain tailsB flip-flopC lateral diffusionD rotationE bumping into proteins

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