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Cellular Transport
Test Description: General Questions about Celluar Transport
Instructions: Answer all questions to get your test result.
1) Net movement of water across a cell membrane occurs
A
From a hypotonic soultion to a hypertonic solution
B
From a hypertonic solution to a hypotonic solution
C
From an isotonic solution to another isotonic solution
D
Through water channels in osmosis
2) A cell must always expend energy to trasnport substances using
A
Ion channels
B
Cell membrane pumps
C
Osmosis
D
Facilitated diffusion
3) A concentration difference across space is called
A
Isotonic
B
Phagocytosis
C
Concentration gradient
D
Plasmolysis
4) Which of the following is a substance that can pass directly through the cell membrane by simple diffusion?
A
Cells
B
NaCl
C
Oxygen
D
Na+ ions
5) Concentration of solutes inside and outside the cell are equal when the solution is
A
hypertonic
B
hypertonic
C
isotonic
D
both hypertonic and hypotonic
6) Diffusion requires
A
A cell membrane
B
An aqueous solution
C
All of the choices
D
A difference in concentration through a space
7) If the molecular concentration of a substance is the same throughout space, the substance
A
Has a small concentration gradient
B
Is in equilibrium
C
Has a large concentration gradient
D
Will undergo diffusion
8) Exocytosis is a
A
Type of passive transport
B
Mechanism by which cells ingest other cells
C
Way for cells to release large molecules, such as proteins
D
Transport process in which vesicles are formed from pounches in the cell membrane
9) When a cell uses energy to transport a particle through the cell membrane to an area of higher concentration, it is using
A
Active Transport
B
Endocytosis
C
Diffusion
D
Osmosis
10) Which of the following is NOT a characteristic of active transport?
A
It moves substances against a concentration gradient
B
It involves facilitated diffusion
C
It requires energy from the cell
D
It relies on carrier proteins that function as pumps.
*select an answer for all questions
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