Contents

1)  The movement of molecules into and out of the body or cells of an organism is called…..

a) circulation                  

b) digestion

c) transport                   

d) all of these


c

2)  The organs responsible for transport in unicellular and simple multicellular organisms are…….

a) vessels                                    

b) lacteal

c) special ducts               

d) no organ


d

3)  The mechanism for transport in unicellular and simple multicellular organisms are……

a) diffusion                    

b) active transport

c) circulation                  

d) both a and b


d

4)  Each and every cell of the body requires…….

a) food                           

b) CO2

c) oxygen                                   

d) both a and c

d

Transport in Plants:




5) In plants, water and salts are transported from roots to shoots through the …….

a) xylem                         

b) phloem

c) mesophyll                   

d) all of these


a