Cellular Respiration

What is the purpose of cellular respiration?

• To produce glucose from sunlight

• To break down glucose and produce energy for the cell

• To make alcohol

Which of the following is a short term energy storage molecule?

• NADH

• NADPH

• FADH2

• ATP

What is the first step of respiration?

• Krebs cycle

• Bridge reaction

• Glycolysis

• Electron transport chain

What is produced during glycolysis

• ATP

• NADH

• Oxygen

• Pyruvic acid

If an organisms is temporarily deprived of oxygen, it will obtain its energy from:

• The Krebs cycle

• The Electron Transport Chain

• Glycolysis and fermentation

• Fermentation

Which of the following stages of respiration produces the most energy from glucose?

• Stage 1: Glycolysis

• Stage 2: Bridge reaction

• Stage 3: The Krebs cycle

• Stage 4: The Electron transport chain

Which of the following structures in the organelle shown increases surface area?

• Outer membrane

• Ribosomes

• Cristae

• DNA

Why is oxygen needed in the mitochondria?

• To combine with carbon to create carbon dioxide

• To accept electrons from the electron transport chain and form water

• To provide electrons for photophosphorylation

• To catalyze the reaction ATP + P = ATP

When a person exercises strenuously, all of the following occur EXCEPT:

• Glucose decreases

• ADP increases

• Lactic acid increases

• Glycogen increases

After exercising you are breathing deeper and faster. This is the body's way of:

• Making more lactic acid

• Sending electrons to the electron transport chain

• Cooling down the body

• Replacing the low levels of oxygen in the muscle tissues