Cellular Respiration Review Sheet

How many ATP are gained from one molecule of glucose in cellular respiration?

36 ATP

What molecule is formed when a phosphate is removed from ATP?

ADP

Why do cells need ATP

It is essential for a source of energy.

What is cellular respiration

Breakdown of glucose for energy

What are the three major parts of aerobic respiration

glycolysis, krebs cycle, ETC

Where does the Krebs cycle and electron transport chain occur?

Mitochondria

Why do plants need cellular respiration

To release energy from glucose created in photosynthesis

Is cellular respiration more efficient with or without O2

With O2

What molecule is the source of energy

glucose

What is the relationship between photosynthesis and cellular respiration

The products of cellular respiration are the reactants of photosynthesis. The reactants of cellular respiration are the products of photosynthesis.

Where does the oxygen used in cellular respiration come from

photosynthesis

What molecule is split during glycolysis

glucose

What molecules are formed in glycolysis

2 pyruvate, 2 ATP, 2 NADH

What role does NAD+ serve

accepts high energy electrons

When does fermentation occur

absence of oxygen

What type of respiration occurs after glycolysis in the absence of oxygen

anaerobic

What are the products of alcoholic fermentation

ethyl alcohol and carbon dioxide

What type of fermentation occurs in the muscles

Lactic acid

What type of fermentation occurs in yeast

alcoholic fermentation

What enters the Krebs cycle and joins with the 4 carbon compound to form citric acid

Acetyl CoA

What happens to the carbon dioxide formed in the Krebs cycle

It is exhaled

What happens to the NADH and FADH2 that are formed in the Krebs cycle

Sent to ETC

What is produced when pyruvate is broken down aerobically

CO2, H2O, ATP

Who discovered the Krebs cycle

Sir Hans Krebs

What is the end product of ETC

water

What is the final electron acceptor?

Oxygen

What is water made from

O2, 2H+, 2E-