Question

final exam
this exam covers all course materials from lab 1 to lab 7, with contents originating from the student lab manual, powerpoints, and pre- and post-lab assignments. there are 50 multiple-choice questions of 1 point each. 2 attempts of 60 minutes each are allowed with your higher scored attempt tabulated in your grade. you have a 6-hour window to complete it, available from 6:00pm on your lab day to midnight. start your first attempt early so youll have more time to study the questions.
1 multiple choice 1 point
yeast needs the following nutrients to grow except
a carbon source
ammonium sulfate
biotin
mv medium

Explanation:

To solve this, we analyze yeast's growth requirements:

• A carbon source (e.g., sugar) is essential for yeast to produce energy via respiration/fermentation.
• Ammonium sulfate provides nitrogen, a key nutrient for yeast growth (for protein/nucleic acid synthesis).
• Biotin (a B - vitamin) is a growth factor required by yeast for metabolic processes.
• MV medium is a type of growth medium (a mixture of nutrients), not a nutrient itself. Yeast needs nutrients (like carbon, nitrogen, vitamins) which are components of the medium, not the medium as a nutrient. So MV medium is not a nutrient yeast needs, it's the medium containing nutrients.

Answer:

D. MV medium