C1.2 Cell Respiration

Multiple Choice

Which of the following best describes the main theme of cell respiration as introduced in the lesson?

• Energy production and molecular organization

• Genetic inheritance and variation

• Cell division and growth

• Immune system defense

Open Ended

Why is cell respiration considered essential for the survival of living organisms?

Open Ended

How is energy distributed and used inside cells?

Open Ended

What are the roles of hydrogen and oxygen in the release of energy in cells?

Multiple Select

Select all terms that are directly related to cell respiration.

• Adenosine Triphosphate (ATP)

• Lactate

• Macromolecules

• Respiration

Open Ended

Explain how ATP acts as the energy currency within cells and why its properties make it suitable for this role.

Multiple Choice

Which of the following is the molecule that distributes energy within cells?

• Adenosine Triphosphate (ATP)

• Adenosine Diphosphate (ADP)

• Lactate

• Enzyme

Fill in the Blanks

ATP is a type of

that provides activation energy for most chemical reactions within cells.

Open Ended

Define active transport and anabolism.

Multiple Choice

Which of the following life processes require energy supplied by ATP?

• Active transport across membranes

• Synthesis of macromolecules (anabolism)

• Movement of the whole cell or cell components

• All of the above

Open Ended

Explain how ATP provides energy for cellular processes, and describe at least two processes that utilize this energy.

Fill in the Blanks

During the conversion of ATP to ADP, energy is released by the process of

.

Multiple Select

Which of the following statements about cell respiration are correct?

• Cell respiration produces ATP using energy from carbon compounds.

• Glucose and fatty acids are principal substrates for cell respiration.

• Cell respiration and gas exchange are the same process.

• A wide range of organic compounds can be used in cell respiration.

Open Ended

Distinguish between gas exchange and respiration.

Open Ended

Explain why mitochondria are required for aerobic respiration but not for anaerobic respiration in humans.

Multiple Choice

Which of the following statements best describes the main difference between aerobic and anaerobic respiration in humans?

• Aerobic respiration requires oxygen, while anaerobic respiration does not.

• Anaerobic respiration produces more ATP than aerobic respiration.

• Aerobic respiration occurs only in plants, while anaerobic occurs in animals.

• Anaerobic respiration uses fatty acids as the main substrate.

Multiple Select

Which of the following are true for both aerobic and anaerobic respiration in humans?

• They occur in cells.

• They use glucose as the initial substrate.

• They use enzymes to catalyse reaction pathways.

• They produce carbon dioxide as a waste product.

Multiple Choice

Which of the following are products of anaerobic respiration in humans?

• Lactate

• Carbon dioxide

• Water

• Oxygen

Fill in the Blanks

The word equation for aerobic respiration in humans is: Glucose + Oxygen →

+ Water

Multiple Choice

Which of the following is NOT a difference between aerobic and anaerobic respiration in humans?

• Aerobic respiration requires oxygen, while anaerobic does not.

• Aerobic respiration produces lactate, while anaerobic produces carbon dioxide and water.

• Aerobic respiration has a high ATP yield, while anaerobic has a low ATP yield.

• Aerobic respiration occurs mostly in mitochondria, while anaerobic occurs in the cytoplasm.

Open Ended

Describe how you would determine the rate of cell respiration in an experiment using raw or secondary data.

Open Ended

Identify what could be measured to investigate the rate of respiration in an organism.

Open Ended

Explain the role of the base (KOH) in the respirometer.

Fill in the Blanks

Factors that affect the rate of respiration in yeast include temperature, mass of yeast, pH of suspension, type of substrate, substrate concentration, and

inhibitors.

Multiple Select

Which of the following are variables that could be investigated in a respiration experiment?

• Temperature

• Type of organism

• Amount of light

• pH of suspension

Open Ended

How do you think the molecular structure of ATP, as shown in the diagram, relates to its function in cell respiration?

Multiple Choice

What is the main theme explored in the topic C1.2 Cell Respiration?

• Interaction and Interdependence

• Energy Transfer

• Cell Division

• Photosynthesis