Subject :NSO Class : Class 7
Refer to the given figure and
select the correct option regarding Y and Z.
AY provides carbohydrates that are transported by Z.
BY transports water and mineral while Z transports
carbohydrates.
CIf it is section of stem of plant provided with carbon
dioxide (with radioactive carbon), then part Y
will appear dark coloured in autoradiograph.
DY is living tissue whereas Z is lignified dead
tissue.
How
Ans 1:
Class : Class 3