Water

IMPORTANT

Water: Overview

This Topic covers sub-topics such as Water and Physical Properties of Water

Important Questions on Water

EASY
IMPORTANT

30% of a human cell is made up of water.

EASY
IMPORTANT

Define surface tension property of water.

MEDIUM
IMPORTANT

Fill in the blanks with the correct options given in the bracket.

The transpiration driven ascent of xylem sap depends on the _____ property of the water. (photosynthetic/ chemiosmotic/ cohesion)

MEDIUM
IMPORTANT

The force between the water column and tracheary elements that prevent its fall down is called _____.(write one word)

MEDIUM
IMPORTANT

Define the cohesive property of water.

HARD
IMPORTANT

The column of water does not fall down under the effect of gravity because of adhesion, cohesion and surface tension of water molecules. It is related to which of the following?

HARD
IMPORTANT

What are the properties of water that help in the ascent of sap in the plants.

EASY
IMPORTANT

What type of bond is formed between the hydrogen atom of one water molecule and the oxygen atom of adjacent water molecule, whether hydrogen bond or Van der Waals force?

MEDIUM
IMPORTANT

List few physical properties of water.

EASY
IMPORTANT

Water is a non-polar molecule.

EASY
IMPORTANT

Water makes up how much percentage of human cells.

EASY
IMPORTANT

Cotyledons are also called-