WorksheetsCellular Respiration Quiz
Total questions: 46
Worksheet time: 2hrs 51mins
List two reasons why food is important to living organisms.
Food serves as a source of energy.
Food provides a set of raw materials that serve as building blocks for the building of new molecules.
Name the principal molecule that stores and releases energy as needed to the cells of a living organism.
ATP
ADP
Describe two basic differences between ADP and ATP.
List three basic components of an ATP molecule.
The nitrogen base, adenine.
The five-carbon sugar, ribose.
Three phosphate molecules.
What is the role of ATP in living cells?
How does ADP become ATP?
What happens when a phosphate molecule is removed from ATP?
List three cellular processes that require the energy from ATP.
Fill in the blanks. Energy flows into an ecosystem in the form of ___a___ and leaves as ___b___.
sunlight
heat
Describe the relationship that exists between photosynthesis and cellular respiration.
Write the definition of cellular respiration.
Which living organisms carry out cellular respiration?
Write a chemical equation that gives the reactants and products of cellular respiration.
In order to carry out cellular respiration, eukaryotic organisms require what cell organelle?
(a)
Distinguish between aerobic and anaerobic respiration.
List the three main stages of cellular respiration. Indicate if the stage is aerobic or anaerobic.
What stage of cellular respiration occurs in the cytoplasm of the cell?
(a)
What stages of cellular respiration occur in the mitochondria?
Describe the process of glycolysis in one sentence.
Even though respiration is an energy-releasing process, a small amount of energy must be invested to get the reactions going. During glycolysis, the energy of ___a___ ATP is consumed, but by the end of the process ___b___ ATP are produced.
2 ATP are consumed.
4 ATP are produced.
What is NAD+ and what is its role in cellular respiration?
What molecule is formed when NAD+ accepts a pair of high-energy electrons?
(a)
How many molecules of NADH are produced during glycolysis?
(a)
As molecules of NADH are produced, they will be delivered to what stage of respiration?
List three end products of glycolysis.
What are two possible paths for the pyruvic acid molecules produced in glycolysis?
Summary of glycolysis. Fill in the missing parts (letters a – g) in the diagram below.
What happens to the pyruvic acid that is produced during glycolysis if NO oxygen is available to the cell? Fill in the missing parts (letters a – c) in the diagram below.
What happens to the pyruvic acid that is produced during glycolysis if oxygen is available to the cell? Fill in the missing parts (letters a – c) in the diagram below.
Describe the Krebs cycle in one sentence.
Describe the electron transport chain in one sentence.
Label the structures of a mitochondrion discussed in class.
The inner membrane of the mitochondria has many loops and folds. What name is given to these loops and folds, and what is their purpose?
What two stages of aerobic respiration occur inside the mitochondria? Where in the mitochondria does each take place?
The Krebs cycle begins when (a) produced by prep-step enters the matrix.
The Krebs cycle begins with a series of reactions that are sometimes referred to as the prep-step reactions. In this set of reactions, pyruvic acid is converted into what compound?
(a)
For two pyruvic acids converted to acetyl-CoA: a) How many molecules of NADH are formed? What happens to them? b) How many molecules of carbon dioxide are formed? What happens to them?
Summary of the prep-step reaction. Fill in the missing parts (letters a – e) in the diagram below.
List three products that are continually produced in the Krebs cycle.
What are NAD+ and FAD, and what is their role in the Krebs cycle?
What is the total amount of each of the following produced during the Krebs cycle per molecule of pyruvic acid? a) CO2 b) ATP c) NADH d) FADH2
What is the total amount of each of the following produced during the Krebs cycle per molecule of glucose? a) CO2 b) ATP c) NADH d) FADH2
What happens to the carbon dioxide that is produced during the Krebs cycle?
What happens to the ATP that is produced during the Krebs cycle?
What happens to the NADH and FADH2 molecules that are produced during the Krebs cycle?
The high-energy electrons from NADH and FADH2 are passed along the electron transport chain. As they are passed from one protein to the next, they release energy. What is this energy used for?
