Fungi cell walls are made of cellulose, like plants made of polysaccharides and chitin permeable semipermeable

The correct answer for the blank is-

made of polysaccharides and chitin.

Chitin is a fibrous material that possesses polysaccharides and forms the  major constituent in the fungal cell wall. It is a polymer of  N-acetylglucosamine, which is derived from glucose.

Due to the presence of fibrous cell walls in fungi, they can easily penetrate animals and plant body, so as to extract nutrients out of them.

Thus, polysaccharides and chitin is the right answer.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.