Practice Test 6

Which molecule is used by cells as an energy source?

• ATP

• DNA

• phosphate

• oxygen

During the first step of cellular respiration, glucose is converted into

• ATP.

• NADPH.

• pyruvate

• citric acid

Most of the ATP made during cellular respiration is produced in which organelle?

• ribosomes

• Krebs cycle

• mitochondria

• Golgi apparatus

What are the reactants of cellular respiration?

• ATP and water

• sugar and oxygen

• NADPH and hydrogen

• carbon dioxide and water

On average, how many molecules of ATP are gained through the process of aerobic cellular respiration from one glucose molecule?

• 2

• 140-150

• 34-36

• 6-8

The ATP molecule shown consists of a base,__________, and a chain of three phosphates.

• cellulose

• maltose

• ribose

• sucrose

What process releases the least ATP per molecule of glucose for immediate cell use?

• chemosynthesis

• Kreb Cycle

• aerobic respiration

• anaerobic respiration

What element is found in all organic compounds?

• carbon

• nitrogen

• oxygen

• water

Energy + 6CO2 + 6H2O → 6O2 + C6H12O6

This is the chemical reaction that occurs during photosynthesis; identify which of these is a product in this chemical reaction.

• water

• oxygen

• hydrogen

• carbon dioxide

Light Energy + 6CO2 + 6H2O → 6O2 + C6H12O6

This is the chemical reaction that occurs during photosynthesis; identify which of these is a reactant in this chemical reaction.

• C6H12O6

• CO2

• H2

• O2