Biochemical Tests

IMPORTANT

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

HARD
IMPORTANT

Copper sulphate is used to determine the presence of

EASY
IMPORTANT

Can you name us?

We are two chemicals needed to test a leaf for starch. - Iodine, _____.

EASY
IMPORTANT

Testing for carbohydrates in a food item is not easy.

EASY
IMPORTANT

Fill in the blank by choosing the correct word from the bracket.

Iodine turns starch to _____ (yellowish -white/ bluish-black) colour.

EASY
IMPORTANT

A green leaf turns bluish black when you add 

EASY
IMPORTANT

The chemicals used to test the presence of proteins: 

EASY
IMPORTANT

Iodine solution turns _____ blue black.

EASY
IMPORTANT

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

EASY
IMPORTANT

Iodine solution turns _____ blue black.

EASY
IMPORTANT

Iodine on mixing with starch turns blue-black.

EASY
IMPORTANT

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?

EASY
IMPORTANT

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

MEDIUM
IMPORTANT

Starch with iodine solution gives ________ colour.

EASY
IMPORTANT

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

EASY
IMPORTANT

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)