Quiz Grade 11 HL Biology Chapter 1.4
Name: ____________________________________
1.
Date: _______________________________
What is the difference between simple diffusion and facilitated diffusion?
Simple diffusion
Facilitated diffusion
A.
Rate decreases with increasing
concentration gradient
Rate increases with increasing
concentration gradient
B.
Faster movement of molecules
Slower movement of molecules
C.
Always involves a membrane
Never involves a membrane
D.
Uses any part of a membrane
Uses channels in the membrane
(Total 1 mark)
2.
Cells in the adrenal gland produce the hormone epinephrine and store it in vesicles. To release
epinephrine these vesicles are carried to the plasma membrane and fuse with it. What process is
occurring?
A.
Expulsion
B.
Exchange
C.
Excretion
D.
Exocytosis
(Total 1 mark)
3.
Which of the following is a feature of exocytosis but not endocytosis?
A.
Shape changes of a membrane
B.
Vesicle formation
C.
Use of ATP
D.
Secretion
(Total 1 mark)
4.
Which of the following is not a function performed by a membrane protein?
A.
Hormone binding sites
B.
Cell adhesion
C.
Enzyme synthesis
D.
Pumps for active transport
(Total 1 mark)
5.
The diagram below shows a plasma membrane. What is molecule X?
1
A.
Cholesterol
B.
Peripheral protein
C.
Glycoprotein
D.
Polar amino acid
(Total 1 mark)
6.
What is the function of the cytoplasmic (plasma) membrane of this bacterium?
A.
To produce ADP
B.
To form the only protective layer preventing damage from outside
C.
To control entry and exit of substances
D.
To synthesize proteins
(Total 1 mark)
7.
What does facilitated diffusion across a cell membrane require?
2
A pore protein
ATP
A concentration gradient
A.
yes
no
no
B.
no
no
yes
C.
yes
no
yes
D.
no
yes
no
(Total 1 mark)
8.
When observing the behaviour of a vesicle in a cell, what identifies it as a vesicle only involved in
exocytosis?
A.
Adhesion between two lipid bilayers
B.
Fusion of two membranes
C.
Secretion of material
D.
Invagination of a plasma membrane
(Total 1 mark)
9.
What route is used to export proteins from the cell?
A.
Golgi apparatus → rough endoplasmic reticulum → plasma membrane
B.
Rough endoplasmic reticulum → Golgi apparatus → plasma membrane
C.
Golgi apparatus → lysosome → rough endoplasmic reticulum
D.
Rough endoplasmic reticulum → lysosome → Golgi apparatus
(Total 1 mark)
10.
In a cell, what is the effect of a large surface area to volume ratio?
A.
Slower rate of exchange of waste materials
B.
Faster heat loss
C.
Faster rate of mitosis
D.
Slower intake of food
(Total 1 mark)
11.
What do diffusion and osmosis have in common?
A.
They only happen in living cells.
B.
They require transport proteins in the membrane.
C.
They are passive transport mechanisms.
D.
Net movement of substances is against the concentration gradient.
(Total 1 mark)
12.
(a)
Define osmosis.
3
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(1)
(b)
Outline how transport occurs across membranes by facilitated diffusion.
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(2)
(c)
Explain how the properties of phospholipids help to maintain the structure of cell
membranes.
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(3)
(Total 6 marks)
13.
The electron micrograph below shows the ultrastructure of part of an animal cell.
[Source: Reproduced with the kind permission of the Electron Microscopy Facility, Trinity College, Hartford,
Connecticut, USA, and Professor Daniel G. Blackburn.]
(a)
Identify the structure labelled I.
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(1)
(b)
Explain briefly how materials produced in the structure labelled I are transported to the
plasma membrane.
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(2)
(c)
Outline the function of the mitochondria in the cell.
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(2)
(d)
Suggest why the two labelled mitochondria are different shapes in the micrograph.
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(1)
(Total 6 marks)
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