10 AG: Cotton video

What materials did the Inca use to make their flexible and protective armor?

What is the primary cell wall's role in the initial growth of a cotton fiber?

• It restricts cell growth

• It stiffens to push cell growth in one direction

• It deposits cellulose to strengthen the cell wall

• It increases the fiber's width

What percentage of the cell wall is made up of cellulose during the initial strengthening stage?

Under ideal growing conditions, what is the maximum length a cotton fiber can reach? _._cm

What determines the strength of the final cotton fiber?

• The fiber’s length

• The density of the secondary cell wall

• The width of the primary cell wall

• The quantity of cellulose in the primary wall

What is left behind in a cotton fiber after the living matter within the cell dies off?

What are the top 2 cotton producing nations in the world?

• India & Australia

• China & Sri Lanka

• Australia & USA

• China & India