test ques1

Question 1

Describe how a saturated fatty acid differs in molecular structure from an unsaturated fatty acid (2)

Answer 1

-absence of a double bond
-in the hydrocarbon chain

Question 2

Explain how cellulose gives cotton its strength (2)

Answer 2

-unbranched chain
-form microfibrils
-h bonds holds chain together

Question 3

Describe test for lipid and positive result (2)

Answer 3

-Mix with ethanol than water
-White emulsion

Question 4

-Describe 2 ways cellulose is similar to starch

Answer 4

-Both are polymers
-Joined by condensation

Question 5

Explain why hydrogen bonds are important in cellulose (2)

Answer 5

-Holds chains
-H bonds are strong in large numbers