Copy of 2.) Plasma (Cell) Membrane Questions (5/28/2026)
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10 questions
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Use the notes that were taken in class to assist you with this.
Use the notes that were taken in class to assist you with this.
Goals:
Recognize the functions of each component of the cell membrane.
Recognize the structure of the plasma membrane
Instructions - use the Cell Membrane notes, and only your notes, to help you with these.
Question 1
1.
The plasma membrane is composed mostly of _______ and protein.
Question 2
2.
Each phospholipid has two parts:
a. A polar head that is hydrophilic, which means that it _______ with water.
b. Nonpolar tails are _______ which means that they are repelled by water.
Question 3
3.
In plasma membranes, phospholipids arrange themselves into two layers (lipid bilayer).
a. The polar heads will face _______ toward the fluid in and around the cell.
b. The nonpolar tails will face _______ away from the fluid in and around the cell.
Question 4
4.
When temperatures are low, cholesterol prevents the cell membrane from becoming too _______ and when temperatures are high, it prevents the cell membrane from becoming too _______ .
Question 5
5.
There are two different types of protein. The first type _______, are used as channels and pumps in the cell membrane. The second type, _______ are used for cell recognition.
Question 6
6.
The cell membrane also contains carbohydrates, which also aid peripheral proteins in performing _______ .
Question 7
7.
There are two different types of carbohydrates in the cell membrane.
_______ are attached to proteins in and on the plasma membrane.
Glycolipids are attached to _______ (be specific).
Question 8
8.
Identify each labeled part of the cell membrane model by name (use the diagram on your notes - it's not identical, but it's close enough).
Don't use, "Channel Protein," or "Carrier Protein."
a.) _______ b.) _______ c.) _______ d.) _______
e.) _______ f.) _______ g.) _______
Don't use, "Channel Protein," or "Carrier Protein."
Question 9
9.
What part of this concept do you feel like you understand the least.
Question 10
10.
How has your confidence regarding this concept changed after having completed this activity?