Question

if you are having trouble seeing the figure then click this link to see the figure in a new window:
membrane proteins
a choose
b choose
c choose
d choose

Explanation:

To solve this, we analyze the cell membrane structure (a typical topic in Biology, a subfield of Natural Science):

Step 1: Identify Structure A

In a cell membrane diagram, the yellow, wavy structures (A) are hydrophobic tails of phospholipids (part of the phospholipid bilayer).

Step 2: Identify Structure B

The combined region (B) with the phospholipid bilayer (including heads and tails) is the phospholipid bilayer (the basic membrane structure).

Step 3: Identify Structure C

The small, orange structure (C) embedded in the bilayer is a cholesterol molecule (stabilizes the membrane).

Step 4: Identify Structure D

The large, blue, embedded protein (D) that spans the membrane is an integral membrane protein (transmembrane protein).

Final Answers (assuming typical options like "hydrophobic tail", "phospholipid bilayer", "cholesterol", "integral protein"):

• A: Hydrophobic tail of phospholipid
• B: Phospholipid bilayer
• C: Cholesterol
• D: Integral (transmembrane) membrane protein

(Note: If specific options were provided, match to the above descriptions. For example, if options include these terms, select accordingly.)

Answer:

To solve this, we analyze the cell membrane structure (a typical topic in Biology, a subfield of Natural Science):

Step 1: Identify Structure A

In a cell membrane diagram, the yellow, wavy structures (A) are hydrophobic tails of phospholipids (part of the phospholipid bilayer).

Step 2: Identify Structure B

The combined region (B) with the phospholipid bilayer (including heads and tails) is the phospholipid bilayer (the basic membrane structure).

Step 3: Identify Structure C

The small, orange structure (C) embedded in the bilayer is a cholesterol molecule (stabilizes the membrane).

Step 4: Identify Structure D

The large, blue, embedded protein (D) that spans the membrane is an integral membrane protein (transmembrane protein).

Final Answers (assuming typical options like "hydrophobic tail", "phospholipid bilayer", "cholesterol", "integral protein"):

• A: Hydrophobic tail of phospholipid
• B: Phospholipid bilayer
• C: Cholesterol
• D: Integral (transmembrane) membrane protein

(Note: If specific options were provided, match to the above descriptions. For example, if options include these terms, select accordingly.)