Question

label the (a - h) in the diagram below.
fill in the bank 4 points
a. answer
a1. answer
a2. answer
b. glycolipid
c. answer
d. answer
e. answer
f. peripheral protein
g. answer
h. answer
(left side labels: polar tail, carbohydrate chain, cholesterol, recognition protein, polar head, phospholipid bilayer, transport protein, phospholipid)

Explanation:

Step1: Identify A (A1 and A2)

A1 and A2 are parts of the phospholipid. Phospholipids have a polar head and a non - polar (hydrophobic) tail. A1 is likely the polar head (since it's the part facing the aqueous environment or has the phosphate - containing polar group) and A2 is the polar tail? Wait, no, phospholipid has a polar head (hydrophilic) and two non - polar tails (hydrophobic). Wait, looking at the labels, the left - hand side labels: polar head, polar tail, etc. Wait, maybe A1 is polar head and A2 is polar tail? Wait, no, let's re - examine. The phospholipid structure: polar head (hydrophilic) and non - polar tails (hydrophobic). So A1: polar head; A2: polar tail? Wait, no, the left labels have "polar head", "polar tail", "phospholipid", etc. Wait, maybe A is phospholipid? No, B is glycolipid. Wait, let's go step by step.

Step2: A (A1 and A2)

Looking at the diagram, A1 and A2 are parts of the phospholipid. The phospholipid has a polar head (hydrophilic) and a non - polar (hydrophobic) tail. So A1: polar head; A2: polar tail? Wait, the left - hand labels have "polar head" and "polar tail". Wait, maybe A1 is polar head and A2 is polar tail. Then for A (the overall part), maybe phospholipid? No, F is peripheral protein, E is cholesterol (the hexagonal structure), C is recognition protein (since it has a carbohydrate chain, glycoprotein or glycolipid? B is glycolipid. D is transport protein (the one that spans the membrane), G is phospholipid bilayer? Wait, H is phospholipid bilayer? Wait, the left labels: phospholipid bilayer, phospholipid, etc.

Wait, let's list the left - hand labels: polar tail, carbohydrate chain, cholesterol, recognition protein, polar head, phospholipid bilayer, transport protein, phospholipid.

Now, let's match each letter:

A: The part with A1 and A2. A1 and A2 are parts of the phospholipid. So A1: polar head; A2: polar tail.

B: glycolipid (given, so we can check: glycolipid has a carbohydrate chain and a lipid part, which matches B's label).

C: recognition protein (since it has a carbohydrate chain, like a glycoprotein for recognition, and the label "recognition protein" is available).

D: transport protein (the protein that spans the membrane, so "transport protein" label).

E: cholesterol (the hexagonal structure is cholesterol, so "cholesterol" label).

F: peripheral protein (given, so F is peripheral protein, which is a protein on the surface of the membrane).

G: phospholipid (the basic lipid unit of the membrane, so "phospholipid" label).

H: phospholipid bilayer (the double layer of phospholipids, so "phospholipid bilayer" label).

Let's verify:

A1: polar head (matches the polar part of phospholipid)

A2: polar tail (matches the non - polar part of phospholipid)

B: glycolipid (given, and glycolipid has a carbohydrate and lipid)

C: recognition protein (has a carbohydrate chain for cell recognition)

D: transport protein (spans the membrane, for transport)

E: cholesterol (the steroid - like structure)

F: peripheral protein (on the surface)

G: phospholipid (the individual lipid molecule)

H: phospholipid bilayer (the two - layer structure of phospholipids)

Step1: A1

A1 is the polar head of the phospholipid. So from the left - hand labels, "polar head" is the label for A1.

Step2: A2

A2 is the polar tail of the phospholipid. From the left - hand labels, "polar tail" is the label for A2.

Step3: A (Overall A)

Wait, maybe A is phospholipid? But A1 and A2 are parts of it. Wait, the table has A, A1, A2. So A1: polar head; A2: polar tail; A: phospholipid? Wait, no, the left - hand labels have "phospholipid" as a label. Let's re - check:

Left - hand labels: polar tail, carbohydrate chain, cholesterol, recognition protein, polar head, phospholipid bilayer, transport protein, phospholipid.

Now, let's match each letter:

A (A1 and A2): A1 is polar head, A2 is polar tail (since phospholipid has a polar head and non - polar tail, but the label is "polar tail" for the tail part).

B: glycolipid (given, so B is glycolipid, which has a carbohydrate chain and lipid, so the carbohydrate chain is part of it, and the label "glycolipid" is for B).

C: recognition protein (the protein with a carbohydrate chain, so "recognition protein" label).

D: transport protein (the protein that goes through the membrane, so "transport protein" label).

E: cholesterol (the hexagonal structure, so "cholesterol" label).

F: peripheral protein (given, so F is peripheral protein).

G: phospholipid (the individual lipid molecule, so "phospholipid" label).

H: phospholipid bilayer (the double layer, so "phospholipid bilayer" label).

So:

A1: polar head

A2: polar tail

A: phospholipid (wait, no, A1 and A2 are parts of the phospholipid, so A (the whole) is phospholipid? But the left - hand label has "phospholipid". Let's confirm:

- A1: polar head (label: polar head)

- A2: polar tail (label: polar tail)

- A: phospholipid (label: phospholipid)

- B: glycolipid (given, and the label "glycolipid" is not in the left - hand labels? Wait, no, the left - hand labels have "carbohydrate chain", "recognition protein", etc. Wait, the left - hand labels are: polar tail, carbohydrate chain, cholesterol, recognition protein, polar head, phospholipid bilayer, transport protein, phospholipid.

Wait, B is glycolipid, which has a carbohydrate chain. So the carbohydrate chain is part of B (glycolipid). So C: recognition protein (has a carbohydrate chain, so "recognition protein" label).

D: transport protein (the protein that spans the membrane, so "transport protein" label).

E: cholesterol (the hexagonal structure, so "cholesterol" label).

F: peripheral protein (given, so F is peripheral protein, which is a protein on the surface, so the label "peripheral protein" is for F, but F is already labeled as peripheral protein? Wait, the table says F: peripheral protein, so we need to match the left - hand label to F? No, F is given as peripheral protein, so we need to find the label for F from the left - hand labels? Wait, no, the problem is to label A - H with the left - hand labels. The left - hand labels are the options: polar tail, carbohydrate chain, cholesterol, recognition protein, polar head, phospholipid bilayer, transport protein, phospholipid.

So:

A (A1 and A2): Let's see, A1 and A2 are parts of the phospholipid. So A1: polar head (label: polar head); A2: polar tail (label: polar tail).

B: glycolipid (but glycolipid is not in the left - hand labels? Wait, no, the left - hand labels have "carbohydrate chain" and "phospholipid" etc. Wait, maybe B is glycolipid, which is a lipid with a carbohydrate chain, so the carbohydrate chain is part of B. So B: glycolipid (but the left - hand labels don't have glycolipid? Wait, the left - hand labels are: polar tail, carbohydrate chain, cholesterol, recognition protein, polar head, phospholipid bilayer, transport protein, phospholipid.

Wait, maybe I made a mistake. Let's start over.

The diagram is a cell membrane structure.

- Phospholipid bilayer (H): the double layer of phospholipids, so H: phospholipid bilayer (label: phospholipid bilayer)

- Phospholipid (G): individual phospholipid molecule, so G: phospholipid (label: phospholipid)

- Cholesterol (E): the steroid - like structure (hexagonal), so E: cholesterol (label: cholesterol)

- Peripheral protein (F): given, so F: peripheral protein (label: peripheral protein? Wait, no, the left - hand labels have "peripheral protein"? No, the left - hand labels: polar tail, carbohydrate chain, cholesterol, recognition protein, polar head, phospholipid bilayer, transport protein, phospholipid. Wait, the problem's F is labeled as "peripheral protein", so we need to use the left - hand labels to fill F? No, F is already labeled as peripheral protein, so maybe the left - hand labels are the answers for A - H, with F already given as peripheral protein.

Wait, the table has:

A: Answer

A1: Answer

A2: Answer

B: glycolipid

C: Answer

D: Answer

E: Answer

F: peripheral protein

G: Answer

H: Answer

And the left - hand labels are the options: polar tail, carbohydrate chain, cholesterol, recognition protein, polar head, phospholipid bilayer, transport protein, phospholipid.

So we need to fill A, A1, A2, C, D, E, G, H with these labels.

Let's identify each part:

- A1 and A2: parts of the phospholipid. Phospholipid has a polar (hydrophilic) head and non - polar (hydrophobic) tail. So A1: polar head (label: polar head); A2: polar tail (label: polar tail); A: phospholipid (label: phospholipid)

- B: glycolipid (has a carbohydrate chain and lipid, so the carbohydrate chain is part of B, but the label for B is glycolipid, and we need to use the left - hand labels? Wait, no, the left - hand labels are the answers for the blanks (A, A1, A2, C, D, E, G, H). B is already labeled as glycolipid, so we don't need to fill B.

- C: the protein with a carbohydrate chain, for cell recognition, so recognition protein (label: recognition protein)

- D: the protein that spans the membrane, for transport, so transport protein (label: transport protein)

- E: the cholesterol (steroid structure), so cholesterol (label: cholesterol)

- G: individual phospholipid molecule, so phospholipid (label: phospholipid)

- H: the double layer of phospholipids, so phospholipid bilayer (label: phospholipid bilayer)

Now let's fill each:

A: phospholipid (label: phospholipid)

A1: polar head (label: polar head)

A2: polar tail (label: polar tail)

C: recognition protein (label: recognition protein)

D: transport protein (label: transport protein)

E: cholesterol (label: cholesterol)

G: phospholipid (label: phospholipid)

H: phospholipid bilayer (label: phospholipid bilayer)

Answer:

A: phospholipid

A1: polar head

A2: polar tail

B: glycolipid

C: recognition protein

D: transport protein

E: cholesterol

F: peripheral protein

G: phospholipid

H: phospholipid bilayer