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Biochemistry game

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

the color of positve result of Ninhydrin Test is

a)

pink

b)

Blue

c)

yellow

d)

red

2.

all the 20 amino acids answer the Ninhydrin Test except

a)

glycin

b)

tryptophan

c)

Proline

d)

valine

3.

Phenylalanine gives blue color with ninhydrine

a)

right

b)

no

4.

when Tyrosine is found in a protien

a)

The protien gives blue color withlead acetate

b)

The protien gives blue color with Millon's

c)

The protien gives red color with Millon's

d)

The protien gives red color with Hopkins Cole

5.

The Precipitation of Protein is a form of

a)

hydrolysis

b)

catalytic reactions

c)

lysis

d)

Denaturation

6.

Denaturation breaks all of the following bonds except

a)

hydrogen bonds

b)

covalent disulfide bonds

c)

ionic

bonds

d)

peptide bond

7.

General test to detect charbohydrates

a)

biurt test

b)

Anthrone Test

c)

Benedict's Test

d)

Barfoed's Test

8.

sucrose is a reducing suger

a)

of course

b)

no

9.

The resulted sugers of the hydrlosis of the sucrose are

a)

polsacharides

b)

oxdizing sugers

c)

reducing sugers

d)

pentoses

10.

Seliwanoff's Resorcinol Test gives a positive result with all of below sugers except

a)

ployscharides of Xylose

b)

polysacharides of fructose

c)

sorbose

d)

Glactose

11.

hydroxymethylfurfural reactes with orcinol to genrate a blue-green product

a)

Right

b)

False

12.

Dextrin + Iodine give a blue colored product.

a)

Right

b)

False

13.

sodium thiosulphate reacts with iodine even when iodine attached to starch

a)

Right

b)

False

14.

The number of milligrams of KOH required to neutralize the free fatty acid present in 1 g of fat is

a)

The ioden number of fat

b)

The acid value of fat

15.

How would you prepare 10.00 mL of 0.6520 M HCl solution from a 1.255 M HCl solution?

a)

I would add 4 ml of 0.6520M HCL to a tube then add 6 ml of distaled water.

b)

I would add 5.19 ml of 0.6520M HCL to a tube then complete the volume up to 10 ml using distaled water.

c)

I would add 5.19 ml of 1.255 M HCL to a tube then complete the volume up to 10 ml using distaled water.

d)

I would add 4 ml of 1.255M HCL to a tube then add 6 ml of distaled water.