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The Cell Membrane

written by: solpre
 
Questions about a cell's membrane; it's structure and function. Also covered are questions on the method of traffic across the membrane.

Question 1:


This property of the cell membrane allows allows some particles to cross more easily than others.
Semi-discriminative
Selective permeability
Semi-permeability
Discriminative passage

Question 2:


What is the name given to the current model of a cell membrane?
Davson-Danielli model
Fluid Mosaic model
Bilayer Phospholipid model
Protein-Lipid model

Question 3:


What does the Davson-Danielli cell model look like?
Proteins are embedded in a phospholipid bilayer
There are no proteins, only a phospholipid bilayer
Two layers of proteins sandwich a phospholipid bilayer
Proteins and phospholipids are structured in a checkerboard pattern

Question 4:


What animal cell helped prove that membrane proteins drift?
Fish
Dog
Mouse
Monkey

Question 5:


All cell proteins are embedded in the cell membrane.
True
False

Question 6:


Glycolipids in cell membranes are involved in transport, enzymatic activity, intercellular joining, and cell-cell recognition.
False
True

Question 7:


Does active transport require the energy of the molecule adenosine diphosphate or ADP?
Yes
No

Question 8:


How permeable is the cell membrane?
It is not permeable
It is fully permeable
It is semi permeable
It varies in permeablity

Question 9:


You are stranded on an island and start drinking water from the ocean because there is no other water source. What state will this put your cells in, and what will happen to you?
hypotonic; rehydrate
hypotonic; become sick
hypertonic; dehydrate
isotonic; be in the same state

Question 10:


When you take a shower or bath for a long time, the skin on your fingertips shrivels. This happens because your body does this.
Loses water in the hypertonic solution
Absorbs water in the hypotonic solution
Absorbs water in the hypertonic solution
Loses water in the hypotonic solution

 
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