B3 Biological Molecules

What is metabolism?

• the food you eat

• all the different enzymes in your body

• chemical reactions that take place in your body all the time

• chemicals dissolving in water

Why do organisms die if they do not have enough water?

• they get thirsty

• chemicals have to dissolve in water for metabolic reactions to take place

• water is a solute

• water is the solution

Which elements are contained in all carbohydrates?

• Carbon

• Hydrogen

• Nitrogen

• Oxygen

To which group of carbohydrates does glucose belong to:

• monosaccharides

• disaccharides

• trisaccharide

• polysaccharides

To which group of carbohydrates does glycogen belong to:

• monosaccharides

• disaccharides

• trisaccharide

• polysaccharides

To which group of carbohydrates does starch belong to:

• monosaccharides

• disaccharides

• trisaccharide

• polysaccharides

To which group of carbohydrates does lactose belong to:

• monosaccharides

• disaccharides

• trisaccharide

• polysaccharides

To which group of carbohydrates does sucrose belong to:

• monosaccharides

• disaccharides

• trisaccharide

• polysaccharides

what form do most organisms use carbohydrates for respiration?

• glucose

• glycogen

• sucrose

• starch

In what form do animals transport carbohydrates in their blood?

• glucose

• glycogen

• sucrose

• starch