IB Biology 2.1 Molecules to metabolism

What is the maximum number of bonds a carbon atom can form with another atoms?

• 3

• 2

• 4

• 6

Which chemical group do amino acids contain that carbs and lipids do not?

• hydroxyl

• amine

• carboxyl

• methyl

Which term describes the synthesis of complex molecules from simpler molecules?

• adhesion

• catabolism

• metabolism

• anabolism

Which type of reaction is the breakdown of starch into sugars?

• Denaturation

• Reducation

• Catabolic

• Condensation

Which molecule is a polysaccharide?

• Glucagon

• Glucose

• Glycerol

• Glycogen

Which type of chemical reaction is an example of anabolism?

• Photolysis

• Combustion

• Hydrolysis

• Condensation

All of the chemical reactions that take place in a cell or organism is called

• metabolism

• catabolism

• redox reactions

• phosphorylation

When large molecules are being formed by chemical reactions it is called

• anabolism

• catabolism

• photosynthesis

• respiration

Carbohydrates contain the following elements:

• Carbon, Hydrogen, Oxygen

• Carbon, Hydrogen, Nitrogen

• Carbon, Hydrogen, Phosphorous

• Carbon, Oxygen, Nitrogen

Lipids contain the following elements:

• Carbon, Oxygen, Sulfur

• Oxygen, Carbon, Nitrogen

• Carbon, Oxygen, Hydrogen

• Carbon, Nitrogen, Sulfur