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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
Facilitated diffusion
B
Osmosis
C
Cell membrane pumps
D
Ion channels
3) A concentration difference across space is called
A
Plasmolysis
B
Phagocytosis
C
Isotonic
D
Concentration gradient
4) Which of the following is a substance that can pass directly through the cell membrane by simple diffusion?
A
Cells
B
Oxygen
C
NaCl
D
Na+ ions
5) Concentration of solutes inside and outside the cell are equal when the solution is
A
hypertonic
B
isotonic
C
both hypertonic and hypotonic
D
hypertonic
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
Is in equilibrium
B
Has a small concentration gradient
C
Has a large concentration gradient
D
Will undergo diffusion
8) Exocytosis is a
A
Mechanism by which cells ingest other cells
B
Transport process in which vesicles are formed from pounches in the cell membrane
C
Way for cells to release large molecules, such as proteins
D
Type of passive transport
9) When a cell uses energy to transport a particle through the cell membrane to an area of higher concentration, it is using
A
Endocytosis
B
Osmosis
C
Diffusion
D
Active Transport
10) Which of the following is NOT a characteristic of active transport?
A
It relies on carrier proteins that function as pumps.
B
It requires energy from the cell
C
It moves substances against a concentration gradient
D
It involves facilitated diffusion
*select an answer for all questions
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