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Question 18N.1.HL.TZ0.4

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Date November 2018 Marks available [Maximum mark: 1] Reference code 18N.1.HL.TZ0.4
Level HL Paper 1 Time zone TZ0
Command term Deduce Question number 4 Adapted from N/A
4.
[Maximum mark: 1]
18N.1.HL.TZ0.4

A cell was placed into a solution containing a dye. After two hours the concentration of the dye inside the cell was higher than in the solution. This was repeated in the presence of a substance that inhibits ATP. In this case the dye did not enter the cell. What is the probable mechanism by which the dye entered the cell?

A.  Active transport

B.  Simple diffusion

C.  Osmosis

D.  Facilitated diffusion

[1]

Markscheme

A