Biochemical Test 1

To carry out a biochemical test, sometimes we need special solution called....

• mixture

• substance

• reagent

• liquid

Which of the following tests for starch?

• Iodine

• Benedict's

• Biuret

• Emulsion

Which of the following tests for protein?

• Iodine

• Benedicts

• Biuret

• Emulsion

Which of the following tests for glucose?

• Iodine

• Benedicts

• Biuret

• Emulsion

When large amounts of glucose is present Benedicts turns...

• purple
• blue-black
• brick-red
• green

When starch is present iodine turns...

• purple

• blue-black

• orange

• brick red

Tags

NGSS.MS-PS1-2

When protein is present Biuret turns...

• purple

• blue-black

• orange

• brick red

A negative test for glucose will cause Benedicts to stay...

• brick red

• blue

• black

• orange

Tags

NGSS.MS-PS1-2

A negative test for protein will cause Biuret to stay...

• brick red

• blue

• black

• orange

What is a positive result for the lipid emulsion test?

• milky white colour

• clear

• yellow

• green