Pretty explain why the correct answer for the question: "a mutation in yeast makes it unable to convert pyruvate to ethanol. how will this mutation affect these yeast cells? " is "a) the mutant yeast will be unable to grow anaerobically" and not the others? a) the mutant yeast will be unable to grow anaerobically. b) the mutant yeast will grow anaerobically only when given glucose. c) the mutant yeast will be unable to metabolize glucose. d) the mutant yeast will die because they cannot regenerate nad+ from nad. i would really appreciate it if someone me with this problem. i need to do corrections for this problem but i don't understand it.

I am assuming that is has something to do with maybe to convert pyruvate to ethanol there needs to be no oxygen. therefore it will not be able to grow without oxygen (anaerobically). That's the best i could think of hope it helps, sorry if it doesn't.

cats ; snakes

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.