Cellular Respiration NOTES

Multiple Choice

Why do you think oxygen is necessary for your body to use the food you eat?

• Oxygen is necessary for the body to convert food into energy through cellular respiration.
• Oxygen is used to build muscle tissue from food.
• Oxygen helps in the digestion of food in the stomach.
• Oxygen is necessary for the absorption of vitamins and minerals.

Multiple Choice

What is the main purpose of cellular respiration in cells?

• To produce oxygen

• To transfer energy from carbohydrates to ATP

• To break down proteins

• To store fat

Multiple Choice

Which of the following best describes the main function of ATP in living cells?

• It stores genetic information

• It provides energy for cellular activities

• It acts as a structural component of membranes

• It transports oxygen in the blood

Multiple Choice

What are the three main components of an ATP molecule?

• Adenine, ribose, and three phosphates

• Adenine, glucose, and two phosphates

• Ribose, glucose, and three phosphates

• Adenine, ribose, and two phosphates

Multiple Choice

Explain how ATP stores and releases energy for cellular processes.

• ATP releases energy by forming new bonds between its phosphate groups.
• ATP is a protein that transports energy across the cell.
• ATP stores energy in its sugar backbone and releases it when needed.
• ATP stores energy in high-energy phosphate bonds and releases it when these bonds are broken.

Multiple Choice

When the high energy bond in ATP is broken, what molecule is formed?

• ADP

• AMP

• Glucose

• NADH

Multiple Choice

Which of the following statements about the chemical equation for ATP energy release is correct?

• ATP is converted to ADP and energy is absorbed

• ATP is converted to ADP, energy, and a phosphate group

• ADP is converted to ATP and energy is released

• ATP is converted to AMP and two phosphate groups

Multiple Choice

Fill in the blank: ATP is converted to ___ when a phosphate group is removed and energy is released.

• ADP
• DNA

• RNA

• AMP

Multiple Choice

Which enzyme is responsible for converting ADP back to ATP in the ATP-ADP cycle?

• ATP Synthase

• Glucose

• Oxygenase

• Ribosome

Multiple Choice

The folds of the inner membrane of the mitochondrion are called ___.

• cristae
• matrix

• lamellae

• chlorophyll

Multiple Choice

Explain the role of mitochondria in cellular respiration and why it is important for eukaryotic cells.

• Mitochondria are involved in photosynthesis in plant cells.
• Mitochondria store genetic information for cellular reproduction.
• Mitochondria are essential for cellular respiration in eukaryotic cells as they produce ATP, the main energy source for cellular activities.
• Mitochondria are responsible for protein synthesis in eukaryotic cells.

Multiple Choice

How are photosynthesis and cellular respiration related?

• Photosynthesis produces glucose and oxygen, which are used in cellular respiration to generate energy, carbon dioxide, and water.
• Photosynthesis occurs only at night while cellular respiration happens during the day.
• Cellular respiration produces glucose and oxygen, which are used in photosynthesis.
• Photosynthesis and cellular respiration are completely unrelated processes.

Multiple Select

Which of the following are stages of cellular respiration?

• Glycolysis

• Kreb's Cycle

• Electron Transport Chain

• Photosynthesis

Multiple Choice

What is the function of electron carriers such as NADH and FADH2 in cellular respiration?

• They carry electrons to the electron transport chain

• They break down glucose directly

• They produce oxygen

• They store ATP

Multiple Choice

Which of the following statements about glycolysis is correct?

• It occurs in the mitochondria and requires oxygen.

• It occurs in the cytoplasm and is an anaerobic process.

• It produces a net of 4 ATP molecules per glucose.

• It breaks down glucose into 3 pyruvate molecules.

Multiple Choice

The Krebs Cycle takes place in the ___ of the mitochondria.

• matrix
• cristae

• lamellae

• chloroplast

Multiple Select

Which of the following are products of the Krebs Cycle for each glucose molecule?

• 6 NADH

• 2 FADH2

• 4 CO2

• 4 ATP

Multiple Choice

How many ATP molecules are produced (net) by the electron transport chain per glucose molecule?

• 2

• 4

• 32

• 36

Multiple Choice

Describe the role of the electron transport chain in cellular respiration and its relationship to ATP production.

• The electron transport chain directly produces glucose during respiration.
• The electron transport chain is responsible for breaking down fatty acids.
• The electron transport chain functions independently of ATP synthesis.
• The electron transport chain generates ATP by creating a proton gradient that drives ATP synthesis.

Multiple Choice

Which step of cellular respiration produces the most ATP molecules?

• Glycolysis

• Krebs cycle

• Electron Transport Chain (ETC)

• Fermentation

Multiple Choice

Explain why your body requires more oxygen when you exercise vigorously, as described in the slide.

• Vigorous exercise decreases the demand for oxygen in muscles.
• Oxygen is only required for recovery after exercise.
• Your body needs less oxygen during exercise to cool down.
• Your body requires more oxygen during vigorous exercise to produce the increased energy needed for muscle activity.

Multiple Choice

If oxygen is not available, which process allows cells to continue producing ATP, and how many ATP molecules are produced?

• 2 ATP molecules
• 3 ATP molecules
• 1 ATP molecule
• 4 ATP molecules

Multiple Choice

Which of the following statements about alcoholic fermentation is/are correct?

• It produces ethanol and carbon dioxide as metabolic wastes.

• It occurs in yeast when oxygen is not available.

• It is responsible for muscle soreness.

• It is used in the production of bread and beer.

Multiple Choice

List three food products that are made using fermentation.

• Bread
• Cheese
• Olive oil
• Yogurt, Sauerkraut, Beer

Multiple Choice

Lactic acid fermentation occurs in ___ cells and causes muscle soreness.

• muscle
• red blood
• nerve
• skin

Multiple Choice

Cellular respiration transfers the energy found in carbohydrates to ___.

• Glucose
• Oxygen
• Carbon Dioxide
• ATP

Multiple Choice

Why do you need oxygen for cellular respiration?

• Oxygen helps in the digestion of food.
• Oxygen is needed to produce ATP efficiently during cellular respiration.
• Oxygen is only needed for photosynthesis.
• Oxygen is a waste product of cellular respiration.