Variation of Life

Question 1

Name the bond that joins two monosaccharides together

Answer 1

Glycosidic

Question 2

Name the monomers that form a cellulose molecule

Answer 2

Beta Glucose

Question 3

Give 5 ways in which the structure of cellulose is different from the structure of starch.

Answer 3

Starch: 1,4 and 1,6 bonds (branched), all glucose monomers same way up, helix/coiled/compact, alpha glucose, no micro/macro fibrils/fibres
Cellulose: 1,4 bond (unbranched), alternating monomers upside down, straight, beta glucose, micro/macro fibrils/fibres

Question 4

Explain one way in which the structure if cellulose is linked to its function.

Answer 4

Can form H-bonds / micro/macro fibrils/fibres

Strength/rigidity/inelasticity