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Science CBSE Homework Assignments
Class 9
The fundamental unit of life
Cell organelles II
1.
Multiple choice questions III
Task:
2
m.
1
.
Which of these is not related to endoplasmic reticulum?
It transports materials between various regions in cytoplasm
It can be the site for some biochemical activities of the cell
It can be the site of energy generation
It behaves as transport channel for proteins between nucleus and cytoplasm
2
.
Following are a few definitions of osmosis
Read carefully and select the correct definition
Movement of solvent molecules from its higher concentration to lower concentration
Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane
Movement of solute molecules from lower concentration to higher concentration of solution through a semipermeable membrane
Movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane
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