Water

Question 1

Is water an organic or inorganic ion

Answer 1

Inorganic (has no more than one carbon atom

Question 2

What is water?

Answer 2

Water is a dipole and polar

Question 3

What is a dipole?

Answer 3

Has a positively charged end (hydrogen) and a negatively charged end (oxygen) but no overall charge

Question 4

What is polar

Answer 4

A molecule with separate charges is said to be polar

Question 5

Describe the formation of oxygen

Answer 5

Hydrogen is + and oxygen is - and is joined together with hydrogen bonds between the oxygen and hydrogen

Question 6

What are the properties of water

Answer 6

1)A solvent
2)A metabolite
3)High specific heat capacity
4)High latent heat of evaporation
5)cohesion
6)High surface tension
7)High density
8)Transparent

Question 7

Describe the function of a solvent

Answer 7

Because if it’s polarity water molecules are attracted to other water molecules and charged particles. This helps charged particles dissolves in water

Water is described as a universal solvent

Water dissolved substances better in warm water as there is more energy

Question 8

What is a universal solvent

Answer 8

A large number of substances can dissolve in water

Question 9

What is a universal solvent

Answer 9

A large number of substances can dissolve in water

Question 10

What is the function a metabolite

Answer 10

Water is used in many biochemical reactions as a reactants
E.g co2 to produce glucose in photosynthesis

Many reactions in the body involves hydrolysis. Where water splits a molecule

Question 11

What is the functions of water

Answer 11

For metabolic reactions

Question 12

What is the functions of water

Answer 12

For metabolic reactions

Question 13

What is a hydrogen bond?

Answer 13

The weak attractive force between the partial positive charge of a hydrogen atom of one molecule and the partial negative charge of another atom, usually oxygen and nitrogen.

Question 14

What property of water makes it a solvent

Answer 14

Because of its polarity, water molecules are attracted to other water molecules and charge particles. This helps the charged particles dissolve in water

Described as a universal solvent- can dissolve a large number of substances

Question 15

What property of water makes it a good metabolite

Answer 15

Water is used in many biochemical reactions as a reactant

Many reactions in the body involve hydrolysis where water splits a molecule

Many reactions in the body involve condensation where water joins a molecule

Question 16

What property of water makes it high specific heat capacity

Answer 16

Large amount of heat energy is required to raise its temperature

—>because hydrogen bonds between water molecules restricts their movement, resisting an increase in kinetic energy and resisting an increase in temperature

Prevents large temperature fluctuations in water temp which is important for keeping aquatic habitats stable. Jt allows enzymes or be stable and not denature

Question 17

What functions of water makes it have high latent heat of evaporation

Answer 17

A lot of heat energy is needed to charge it from a liquid to vapour

Used in temperature control where heat is used to vaporise water from sweat on the skin/ leafs surface- when water evaporates the surface cools

Question 18

What functions of water makes it have high latent heat of evaporation

Answer 18

A lot of heat energy is needed to charge it from a liquid to vapour

Used in temperature control where heat is used to vaporise water from sweat on the skin/ leafs surface- when water evaporates the surface cools