Intro to the Krebs Cycle

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Multiple Choice

The Krebs Cycle is also called

• Link Reaction

• Glycolysis

• Citric Acid Cycle

• Nitrogen Cycle

Multiple Choice

An Acetyl CoA mixes with a oxaloacetate to form a _____?

• 4C

• 6C

• 2x ADP

• 2x ATP

Multiple Choice

What are the NADH's produced from the Krebs cycle used for

• 1 NADH = 1 ATP directly

• It is used to reduce the 6C's and turn them into 4C's

• It is used to reduce the 4C's and turn them into 6C's.

• It is used in the Electron Transport Chain, the next step of respiration.

Multiple Choice

How much of the initial glucose is still left after the Krebs Cycle?

• 2 C's which will be used in the Electron Transport Chain

• 1 C which will be used in the Electron Transport Chain

• None as they are all released as CO2

• None as they are all used to turn ADP into ATP

Multiple Choice

The NAD+ gets ___________ to NADH (choose the best term)

• reduced

• oxidized

• transformed

• chemically synthesized

Fill in the Blank

In total, in ONE process of the Krebs Cycle, _____ NADH's are produced. (Number only for best results. I will be checking your answers, but if you don't write the number only you might not be eligible for the rewards!)

Multiple Choice

What is the function of FADH?

• It helps with the oxidation of NADH

• Transporting electrons to the Electron Transport Chain

• It helps with the reduction of NADH

• It helps with hydrolysis, which is crucial in creating NADH molecules

Open Ended

FRQ QUESTION (3 points):

Identify ALL waste products of respiration. Which of these waste products are given off during the Krebs cycle? Describe why that waste product is given off.

Poll

How would you describe your knowledge of the Krebs Cycle?

• I now know LESS about the krebs cycle than before this presentation.

• I did not learn anything at all.

• I now know SLIGHTLY MORE about the krebs cycle than before this presentation.

• I now know MORE about the krebs cycle than before this presentation.

• I now know SIGNIFICANTLY MORE about the krebs cycle than before this presentation.

Thank you