Exam preparation - Beta-oxidation

8 important questions on Exam preparation - Beta-oxidation

2 - ii) What is the starting input (reactant) for beta-oxidation?

FA's (specifically A CA) are the input required for B O to begin

2 - iv) What modification is required so that the fatty acid can be used to start beta-oxidation?

Before the FA can be used in B O, the FA must attach to a CA

After a CA is attached to a FA, the compound is called an A CA

2 - iv) How is the fatty acid derivative moved into the mitochondria where beta-oxidation takes place? (3 parts)

A CA must move from the C into the M of the M

The C T S is used to facilitate the movement of A CA into the M of the M

The M M is the location where B O occurs
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2 - v) What purpose is the final output of beta-oxidation used for? (4 parts)


The C produces many E rich C E's that are taken to the E

The combination of the E and O P allow a lot of A to be made

The FA has converted into A


The E rich C E's produced in B O are taken to the E/O to generate A

2 - vi) Why is it necessary for us to perform beta-oxidation?

B O is needed to produce a lot of A CA from the FA

A CA are used to generate A via the C, E and O

3 - i) The third step (chemical reaction) of beta-oxidation is a redox reaction where the compound of the reaction is oxidised. How do the NAD+ and FAD coenzymes help facilitate these redox reactions in beta-oxidation? (3 parts)


N is R to N which allows the R to be O as the R loses T H A's

After losing T H A's the O forms a D C C B to the C to ensure both the C and the O have their C N of C B's

The O of the C converts the A F G to a K F G

3 - ii) Steps 2 of beta-oxidation is a hydration reaction. How does the addition of a single H2O results in the addition of an alcohol (-OH) group and the loss of a double carbon-carbon bond? (5 parts)

One of the B's connecting the T C A's is B

There are now T F B P's for other A's to attach to the C A's

H splits in T to become O and H

Each of the O and H attach to O of the C A's via a C B

The P C now contains an A A G as it has gained an O G

3 - iii) Step 4 of beta-oxidation is the thiolysis step that releases an acetyl CoA unit. What happens in the thiolysis reaction that allows an acetyl CoA to be released? (4 parts)

T C's of the FA are R

These T C's are attached to a CA and are an A CA

After an A CA is R from the FA, what remains of the FA attaches to another CA

The shorter FA will then re-enter another B O C

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