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WorksheetsLiposomes
Total questions: 10
Worksheet time: 50mins
A __________ decides what objects or molecules are allowed to come into and also exit the cell.
membrane
lipid bilayer
both answers are correct
neither answer is correct
What is a liposome made up of?
only phosphorus
phospholipids
a plastic bag
liposomes do not exist and therefore this question is irrelevant
Which of the following is FALSE, concerning membranes?
a membrane can be composed of a lipid bilayer
a membrane is composed of phospholipids
a membrane determines what goes into and comes out of a cell
a membrane ensures that nothing ever enters or exits a cell
A phospholipid is known as amphipathic because it contains hydrophobic AND hydrophilic parts. Concerning the phospholipid, the __________ is hydrophobic and the __________ is hydrophilic.
head / tail
tail / head
neither answer is correct
amphipathic is a made up word so the entire evaluation of the question is moot
TRUE or FALSE?
A liposome is a spherical structure made up of 2 layers of phospholipids and used to transport nutrients (e.g. vitamins) or drugs (e.g. medicines) to specific parts of the body using targeting ligands (i.e. cellular keys)
TRUE
FALSE
neither TRUE nor FALSE
42
Drugs that are located in the center of a liposome (like the red pentagons shown) are...
hydrophilic
hydrophobic
amphipathic
drugs are bad...mmmkay?
Which of the following is FALSE concerning liposomes?
a liposome can carry both hydrophilic and hydrophobic drugs
a liposome is made up of phospholipids
a liposome has a lipid bilayer
a liposome is composed of a SINGLE layer of phospholipids, which form a membrane and encapsulate an aqueous core
Each cell has a membrane like a “gate keeper” which only lets certain things in or out. When the liposome travels to a specific cell, it needs a special “key” to gain access and enter the cell.
We call this “key” a __________.
skeleton key
appendage
ligand
homing receptor
__________ is the effect the BODY has on the DRUGS; it includes absorption, distribution, metabolism and excretion of drugs.
pharmacokinetics
pharmacodynamics
pharmacy
pharmacist
__________ is the effect that DRUGS have on the BODY; it involves receptor binding (ligands), post receptor effects, and chemical interactions.
pharmacokinetics
pharmacodynamics
pharmacy
pharmacist
