Liposomes are found in the cytosol and are formed from a double layer of phospholipid molecules identical to those found in plasma membranes - VCE - SSCE Biology - Question 2 - 2007 - Paper 1
Question 2
Liposomes are found in the cytosol and are formed from a double layer of phospholipid molecules identical to those found in plasma membranes. Liposomes can also be m... show full transcript
Worked Solution & Example Answer:Liposomes are found in the cytosol and are formed from a double layer of phospholipid molecules identical to those found in plasma membranes - VCE - SSCE Biology - Question 2 - 2007 - Paper 1
Step 1
A. drug 1 is lipophilic.
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Answer
Drug 1 is expected to be lipophilic because it is located in the lipid bilayer of the liposome. Lipophilic substances typically dissolve in the lipid portion of membranes.
Step 2
B. drug 2 is water soluble.
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Answer
Drug 2 is likely to be water soluble as it is depicted in the aqueous environment inside the liposome. Water soluble substances tend to remain in the aqueous layer.
Step 3
C. the interior of the liposome is aqueous.
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The interior of the liposome consists of an aqueous compartment as indicated by the presence of drug 2 within this space. This design allows for the transport of water-soluble drugs.
Step 4
D. liposome-based membranes have a rigid structure.
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Liposome-based membranes do not have a rigid structure; rather, they are flexible due to the nature of the phospholipid bilayer, which allows for fluidity and the ability to merge with other membranes.
