Answer:
Ans 1) True
Ans.2) false
AS the outer wall of pollen grain are known as exine
AND intine are the inner wall of pollen grains
Ans.3) true
Ans.4) ( sorry I don't know this ) :(
Ans.5) false
AS screnchyma functions are to give support and structure to the plants
AND meristems consists of activity for dividing cell
hope it helped you :)