ineedhelp2285
18.12.2019 •
Biology
In his studies of alcoholic fermentation by yeast, louis pasteur noted that the sudden addition of oxygen (o2) to the previously anaerobic culture of fermentation grape juice resulted in a dramatic decrease in the rate of glucose consumption. this "pasteur effect" can be counteracted by the addition of 2,4-dinitrophenol (dnp), an uncoupler of oxidative phosphorylation. (6 marks) (a) why would the yeast cells consume less glucose in the presence of oxygen? (b) why would dnp counteract or prevent the pasteur effect?
Solved
Show answers
More tips
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
Answers on questions: Biology
- B Biology During aerobic cellular respiration, each glucose molecule produces about ATP molecules....
- M Mathematics Sam receives pay rises of 4% o his hourly rate and 5 % on his base rate. How much would he earn for completing a 42 hour week over 5 days...
- M Mathematics Pele will drive a car each day he is at the beach If he drives the same distance each of the 3 days he is there, how far will he drive each day?...
- M Mathematics Aplane descends to 5/6 of its cruising altitude, a. what is the new altitude? write an algebraic expression! i really need ! will mark 50...
- M Mathematics Elliot had 638 fewer marbles than ravi had. ravi then gave 352 marbles to elliot. who had more marbles in the end. how many more...
Ответ:
A. 38 mol of ATP is yielded during aerobic oxidation of glucose while only 2 ATP is yielded during anaerobic oxidation of glucose. This will cause the yeast cell to need 19 times more glucose anaerobically and to need less glucose aerobically.
(b) DNP is going to block the major step in aerobic ATP production causing the yeast cells to use about the same amount of glucose as anaerobic cells when compared to yeast cells without DNP present
Ответ:
C
Explanation: