Multiple choice

1. Which kind of chemical reaction involves the attachment or removal of a phosphate group? 

Oxidation-reduction 

Acid phosphorylation 

Phosphorylation 

Hydrolysis 

2. A solution with a high concentration of hydrogen ions could have a pH of: 

2. 

6. 

9. 

11. 

3. The reaction C6H12O6 + O2 „_ CO2 + 6H2O is which type of chemical reaction? 

Hydrolysis 

Transfer 

Dehydration synthesis 

Oxidation-reduction 

4. Organic molecules always: 

contain carbon. 

contain carbon, hydrogen, and oxygen respectively in a 1:2:1 ratio. 

are produced by living organisms. 

dissolve in water.