Nutrients

Question 1

What are nutrients needed for

Answer 1

Energy
Raw materials for growth + repair
To make chemicals for metabolic reactions

Question 2

Living organisms need 14 elements.

Name the most common six elements

Answer 2

Carbon 
Hydrogen 
Oxygen 
Nitrogen 
Phosphorus 
Sulphur

Question 3

Elements present as dissolved salts and sodiums:

Answer 3

Sodium 
Magnesium 
Chlorine 
Potassium 
Calcium

Question 4

Trace elements:

Answer 4

Iron
Copper
Zinc

Question 5

What are biomolecules

Answer 5

Biomolecules are chemicals made inside living things

Question 6

What elements are carbohydrates consisted of

Answer 6

Carbon
Hydrogen
Oxygen

Question 7

Give the formula for glucose

Answer 7

C6H12O6

Question 8

Ratio of carbon to oxygen

Answer 8

2:1

Question 9

Name the types of sugars

Answer 9

Monosaccharides- one sugar unit

Glucose
Fructose

Disaccharides - two sugar units
Sucrose

Polysaccharide- many sugar units
Starch, cellulose, glycogen

Question 10

Function of cellulose

Answer 10

Forms cell walls

Question 11

Functions of water

Answer 11

Excellent solvent making it an ideal transport medium

High specific heat capacity

Takes part in chemical reactions - hydrolysis in digestion