Carbohydrates

Question 1

breakdown the word carbohydrates

Answer 1

‘Carbo’ - Contains the element carbon.

‘Hydrate’ - Contains hydrogen and oxygen atoms in a ratio of 2:1 like water (H2O).

Question 2

what is the formulae for carbohydrates?

Answer 2

Cx(H2O)y.

Question 3

what are the roles of carbohydrates?

Answer 3

• energy supply for cells
• energy storage (sugars stored as complex carbs) (starch/glycogen)
• structural components (cellulose and chitin = cell walls)
• cellular recognition (glycoproteins = cells identify each other and comm)
• building blocks for biological molecules (deoxyribose and ribose = nucleic acids)

Question 4

what are the type of carbohydrates?

Answer 4

monosaccharides: glucose, fructose, galactose
= energy source

disaccharides: maltose, sucrose, lactose
= transport form

polysaccharides: starch, glycogen, cellulose
= storage form