Observe the following substances and answer the following questions. Oxygen, Glucose

Question

Observe the following substances and answer the following questions.

Substance	Should go into the cell	Should go out of the cell
Oxygen
Glucose
Proteins
Fats
Vitamins
Minerals
Carbondioxide
Wastes

a) Which substances should go into the cell? 

b) Which substances should go out the cell? 

c) Which is useful to transport the substances into the cell? 

d) What is use of osmosis?

Answer 1

a) Oxygen, Glucose, Proteins, Fats, Vitamins. 

b) Carbondioxide, Waste materials. 

c) Plasma membrane. 

d) Plasma membrane is a selectively permeable membrane. It allows entry of useful certain materials exit of some un useful substances while preventing passage to remaining substances. 

It helps in keeping the ceil alive.