Question

A marathon runner starts to feel muscle cramps as her muscle cells become deprived of oxygen during the marathon. These muscle cramps occur as the result of the cells undergoing fermentation rather than aerobic cellular respiration.

Identify which of the two types of fermentation is occurring in the marathon runner's muscle cells. The muscle cramps felt by the runner are caused by this particular type of fermentation. Explain what would happen to the marathon runner if the other type of fermentation occured instead.

Answer 1

@AZ

Answer 2

lactic acid fermentation?

Answer 3

Yup, that's what happens in the marathon runner when her muscle cells become deprived of oxygen - and the build up of lactic acid from lactic acid fermentation result in the cramps

Answer 4

What's the other kind of fermentation?

You can take a look here if you don't know
https://bio.libretexts.org/Bookshelves/Human_Biology/Book%3A_Human_Biology_(Wakim_and_Grewal)/05%3A_Cells/5.10%3A_Fermentation

Answer 5

but if she had alcholoic fermentation she ould?

Answer 6

so remember, we switch to lactic acid fermentation because we don't have enough oxygen to continue doing oxidative phosphorylation

so both lactic acid fermentation and alcoholic fermentation regenerate NAD+ to help us make some energy when there isn't as much oxygen

Answer 7

but what's the difference between the two?

"While this is similar to alcoholic fermentation, note that there is no carbon dioxide produced in this process."
(From that textbook link I sent you earlier)

Answer 8

thanks

Answer 9

you're also producing ethanol in alcoholic fermentation

so have you heard about ethanol poisoning?

so that and also the fact you're producing CO2 in alcoholic fermentation could be very bad

Answer 10

yep

Answer 11

\(\color{#0cbb34}{\text{Originally Posted by}}\) @iuytyuioiuytyuiop
thanks
\(\color{#0cbb34}{\text{End of Quote}}\)

No problem!