Krebs' Cycle
Authored by Mr Westbury
Biology
11th Grade - University
NGSS covered
Used 8K+ times
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About
This quiz comprehensively covers the Krebs Cycle, also known as the citric acid cycle, which represents advanced cellular respiration content appropriate for grade 11 biology students. The questions systematically assess students' understanding of the cycle's molecular components, quantitative outputs, and cellular location within mitochondria. Students need a solid foundation in biochemistry fundamentals, including knowledge of electron carriers (NADH and FADH₂), ATP synthesis, and the structural organization of mitochondria. The quiz requires students to understand stoichiometric relationships between glucose molecules and the products generated through multiple turns of the cycle, demonstrate knowledge of key intermediate compounds like oxaloacetate and acetyl-CoA, and recognize the preparatory steps that convert pyruvate before it enters the cycle. Students must also comprehend the cycle's role within aerobic respiration and understand how energy is captured and transferred through various molecular carriers. Created by Mr. Westbury, a Biology teacher in Canada who teaches grade 11 and University level students. This assessment serves as an excellent tool for evaluating student mastery of complex biochemical processes and can be effectively implemented as a unit review quiz, formative assessment during instruction, or homework assignment to reinforce learning. The quiz's comprehensive scope makes it particularly valuable for preparing students for summative assessments or standardized examinations that require detailed knowledge of cellular respiration. Teachers can use this quiz to identify specific areas where students need additional support, whether in understanding molecular quantities, biochemical pathways, or cellular structures. The content aligns with standards such as NGSS HS-LS1-7, which addresses cellular respiration processes that provide energy for cellular functions, and supports learning objectives focused on understanding how cells capture, store, and use energy through metabolic pathways.
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The "regenerator" of the Krebs Cycle is:
Tags
NGSS.HS-LS1-7
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Before entering Krebs Cycle, pyruvate is:
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The number of ATP molecules produced out of Krebs Cycle is:
Tags
NGSS.HS-LS1-7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many FADH2 molecules are produced by 1 molecule of glucose?
Tags
NGSS.HS-LS1-7
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How many FADH2 molecules are produced by 1 turn of the Krebs Cycle?
Tags
NGSS.HS-LS2-3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?
Tags
NGSS.HS-LS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not a requirement for the Krebs Cycle?
Tags
NGSS.HS-LS1-7
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