
Membrane Proteins and Their Functions
Interactive Video
•
Biology, Science, Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two main components of a phospholipid?
Hydrophobic head and hydrophobic tail
Hydrophilic head and hydrophilic tail
Hydrophobic head and hydrophilic tail
Hydrophilic head and hydrophobic tail
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which model first suggested the presence of a double layer of phospholipids in cell membranes?
Davidson-Danielli model
Gordon Grendel model
Fluid mosaic model
Singer-Nicholson model
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was a key feature of the Davidson-Danielli model?
Proteins integrated within the membrane
Cholesterol embedded in the membrane
A single layer of phospholipids
Proteins forming a sandwich around the phospholipid bilayer
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the fluid mosaic model propose about membrane proteins?
They are only on the surface of the membrane
They are integrated within and throughout the membrane
They are absent in the membrane
They form a rigid structure
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does cholesterol affect the cell membrane?
It only increases membrane stiffness
It prevents crystallization and reduces fluidity
It makes the membrane too fluid
It has no effect on the membrane
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which protein function involves the transport of water across the membrane?
Recognition
Transport
Anchorage
Transduction
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of glycoproteins in the cell membrane?
They increase membrane fluidity
They transport water
They assist in cell recognition and adhesion
They provide energy
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