Font size
WorksheetsKrebs Cycle
Total questions: 15
Worksheet time: 15mins
Draw a diagram of the mitochondria and label its parts indicating where the Krebs cycle takes place.
The Krebs Cycle begins with (a) being broken down.
When citric acid is broken down, ________ is given off as waste.
Citric Acid
Carbon Dioxide
Oxygen
NAD+
Which of the following is not a product of the Krebs Cycle?
NADH
FADH2
ATP
Glucose
A __ ________ molecule remains in the Krebs Cycle.
(a)
High-energy electrons are transferred to NAD+ to create (a) .
NADH from the Krebs Cycle moves on to the
Calvin Cycle
Citric Acid Cycle
Electron Transport Chain
Glycolysis
______ ______ is formed when the 2-carbon part of the intermediate molecule is added to a 4-carbon molecule.
(a)
How many turns of the Krebs cycle per glucose molecule?
(a)
Which of the following intermediary metabolites enters the citric acid cycle and is formed, in part, by the removal of a carbon (CO2) from one molecule of pyruvate?
lactate
oxaloacetate
glyceraldehydes–3–phosphate
acetyl CoA
_____ molecules of NADH are produced by a molecule of glucose through the Krebs cycle.
0
2
4
6
How many carbon atoms remain from the original glucose after Krebs cycle?
0
2
4
6
What is the main purpose of the Krebs Cycle in cellular respiration?
To produce glucose
To generate ATP and electron carriers
To break down fatty acids
To synthesize proteins
Which molecule is regenerated at the end of the Krebs Cycle, allowing the cycle to continue?
Acetyl CoA
Oxaloacetate
Citrate
Fumarate
During the Krebs Cycle, which of the following molecules is released as a byproduct?
Oxygen
Water
Carbon Dioxide
Glucose
