Tests For Certain Products

Question 1

What is the test for sugars?

Answer 1

The Benedicts test.

Can either be reducing or non reducing.

Question 2

What is the test for starch?

Answer 2

Iodine

Question 3

What colour will substance go if iodine is present?

Answer 3

From browny orange colour.

To blue black colour.

Question 4

What colour will substance go if non reducing sugar or reducing sugar is present?

Answer 4

Green
Yellow
Orange
Brick red

Question 5

What is the test for lipids?

Answer 5

Emulsion.

Question 6

What colour will substance go if lipid is present?

Answer 6

Milky emulsion

Question 7

What is the test for proteins?

Answer 7

Biuret

Question 8

What colour will substance go if protein is present ?

Answer 8

From blue.

To purple.

Question 9

Test for DNA replication?

Answer 9

Meselson and Stahls experiment of semi conservative.

Question 10

Test for pregnancy.

Answer 10

Detection of hormone human chorionic gonadotropin (hCG) in urine.

Question 11

Test to see if patient has any antibodies to certain antigen or vice versa - HIV

Answer 11

Elisa.
Direct Elisa.
Indirect Elisa - HIV.