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WorksheetsCellular Respiration IB Biology
Total questions: 27
Worksheet time: 27mins
When we say a process requires oxygen, we call it what?
Anaerobic
Aerobic
Oxyphillic
Oxygenphilia
When we say a process that does not require oxygen, we call it what?
Anaerobic
Aerobic
Oxyphillic
Oxygenphilia
True or False: We call the first phase of cellular respiration glycolysis.
True
False
Which of the following is a reactant of cellular respiration?
Oxygen
Carbon Dioxide
Glucose
Glucose and Oxygen
Glycolysis is responsible for breaking glucose down into what?
CO2
H2O
Acetyl CoA
2 Pyruvic Acids
True or False: This is the cellular respiration equation:
C6H12O6 + O2 ------> CO2 + H2O
True
False
True or False: Only heterotrophs need to perform cellular respiration.
True
False
Which of the following is NOT a product of cellular respiration?
Water
Carbon Dioxide
Energy in the form of ATP
Glucose
During which phase of cellular respiration is the most ATP harvested?
Glycolysis
Krebs Cycle
Electron Transport Chain
Citric Acid Cycle
Which process requires oxygen in aerobic cell respiration?
Oxidation of triose Phosphate
Reduction of hydrogen carriers
Maintaining an oxygen concentration gradient in the mitochondria
Accepting electrons at the end of the electron transport chain
What happens when pyruvate is converted to Acetyl CoA in the link reaction?
Decarboxylation
Phosphorylation
Hydrolysis
Reduction of pyruvate
The following processes occur in aerobic cell respiration. Which is the correct sequence for these processes?
I ---> II ---> III
I ---> III ---> II
II ---> III ---> I
III ---> I ---> II
What is a requirement for the accurate measurements of the rate of respiration using a respirometer?
CO2 must be absorbed by water so that only O2 production is measured
Temperature must be kept constant so that the volume changes are only due to O2 use
Anaerobic organisms are better to use than aerobic ones as they will produce larger volume changes
Warm-blooded animals are better to use than cold-blooded animals as they do not change the temperature of the container
The diagram represents the Krebs cycle. What processes are occurring at I and II?
I: C4 is being reduced. II: NAD+ is being oxidised
I: NAD+ is being decarboxylated. II: C5 is being oxidised
I: NADH is being reduced. II: C5 is being decarboxylated
I: NAD+ is being reduced. II: C5 is being decarboxylated
The reaction shown occurs in the mitochondria. What explains that this reaction enables energy to be converted into a usable form?
The oxidised NAD+ will transfer energy from the C6 compound to ATP
The chemical energy stored in the C6 compound is used to reduce NAD+ allowing ATP production
Energy stored in the CO2 molecule will generate and electron gradient
The C6 compound is reduced and the energy resulting from the removal of one carbon is used to oxidise NAD+
The diagram shows a mitochondrion. Which letter indicates the structure where ATP synthase is located?
A
B
C
D
Which part of the mitochondrion has the highest concentration of protons?
A
B
C
D
Which of the following reactions does not cause a net release of energy?
ADP combines with inorganic phosphate to form ATP
ATP releases inorganic phosphate to form ADP
Loss of hydrogen from reduced NAD
Oxidation of reduced FAD
The image shows a portion of a cell containing a mitochondrion. Where do glycolysis and electron transport occur?
Glycolysis: P . Electron transport: R
Glycolysis: R . Electron transport: Q
Glycolysis: R . Electron transport: R
Glycolysis: S . Electron transport: Q
Which gas produces most of the bubbles in bread dough?
Oxygen
Methane
Carbon dioxide
Water vapour
What feature of carbon makes it most suitable as a basis for life?
Its abundance in nature
Its bonding properties
Its reactivity to light
Its presence in the early atmosphere of the Earth
A cricket was placed in a respirometer at constant temperature for 10 minutes. The soap bubble moved along the pipette. What was measured by the movement of the soap bubble?
Production of carbon dioxide
Volume of excretory products
Oxygen consumption
Release of heat
