at the start -glass tube- carrot. - concentrated- sugar solution dilute sugar solution- at the start Why does the sugar solution in the glass tube rise? after 2 hours watertight seal after two hours A Sugar molecules move O across the carrot tissue into

at the start -glass tube- carrot. - concentrated- sugar solution dilute sugar solution- at the start Why does the sugar solution in the glass tube rise? after 2 hours watertight seal after two hours A Sugar molecules move O across the carrot tissue into

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter36: Digestion And Human Nutrition

Section: Chapter Questions

Problem 2CT

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

The diagram shows the movement of a concentrated sugar solution up a glass tube. The glass tube is connected firmly to a hollowed-out carrot.

to a hollowed-out carrot.
at the start
at the start
-glass tube-
carrot.
concentrated-
sugar solution
dilute
sugar solution-
……………….
Why does the sugar solution in the glass tube rise?
after 2 hours
watertight seal
after two hours
A Sugar molecules move
across the carrot tissue into
the glass tube.
B Sugar molecules move
across the carrot tissue into
the beaker.
C Water molecules move
across the carrot tissue into
the glass tube.
D Water molecules move
across the carrot tissue into
the beaker.

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