Biochemical Tests
Biochemical Tests: Overview
This topic covers concepts, such as, Test for Starch Using Iodine, Test for Protein Using Copper Sulphate & Test for Fats etc.
Important Questions on Biochemical Tests
Copper sulphate is used to determine the presence of

Can you name us?
We are two chemicals needed to test a leaf for starch. - Iodine, _____.

Testing for carbohydrates in a food item is not easy.

Fill in the blank by choosing the correct word from the bracket.
Iodine turns starch to _____ (yellowish -white/ bluish-black) colour.

A green leaf turns bluish black when you add

The chemicals used to test the presence of proteins:

Iodine solution turns _____ blue black.

Name of the chemical that name starts with I that is needed to test a leaf for starch.

Iodine solution turns _____ blue black.

Iodine on mixing with starch turns blue-black.

Potato is a good source of starch. If you add few drops of iodine solution on a few pieces of potato which colour will it show?

An iodine test is done to see the presence of _____ in plants.

Starch with iodine solution gives ________ colour.

On adding a few drops of iodine solution, starch solution turns _____.

Can you name us? Using the appropriate word from the bracket.
We are two chemicals needed to test a leaf for starch.
Iodine and _____. (Lime/Alcohol)
