Question

1. a student participating in an exercise physiology lab notices a burning sensation in her leg muscles. she is observing the side effects of which process in her muscle cells?\

a lactic acid fermentation\
b krebs cycle\
c electron transport chain\
d glycolysis\

1. which of the following describes the type of energy stored in glucose?\

a chemical kinetic\
b chemical potential\
c mechanical kinetic\
d mechanical potential\

1. which of the following accurately describe the differences in glucose and atp? select all that are true.\

a one molecule of glucose stores more energy than one molecule of atp.\
b glucose stores chemical energy but atp stores electromagnetic energy.\
c the bonds in glucose can store energy long - term, but the bonds of atp store energy short - term.\
d the energy in glucose cannot be transformed, but the energy in atp can be used to do cellular work.\
e glucose can be renewed and reused in cellular energy processes, but once atp is used, it cannot be reused.\

1. saccharomyces cerevisiae is a strain of yeast used by a teacher to demonstrate glycolysis to his students. how many atp molecules should the students expect to be produced for each glucose molecule?\

a 2\
b 8\
c 16\
d 36

Explanation:

Question 2

During exercise, when oxygen is limited, muscle cells undergo lactic acid fermentation (anaerobic respiration) which produces lactic acid, causing the burning sensation. The Krebs cycle and electron transport chain require oxygen, and glycolysis is the first step but doesn't directly cause the burn from fermentation.

Glucose stores energy in its chemical bonds, which is chemical potential energy (stored energy available to do work). Chemical kinetic energy is about energy of motion in chemical reactions (not storage), mechanical kinetic/ potential relate to motion or position of objects, not energy in glucose.

• Option A: One glucose has more energy than one ATP (glucose is a larger energy - storing molecule), so A is true.
• Option B: Glucose stores chemical energy, ATP also stores chemical (not electromagnetic) energy, so B is false.
• Option C: Glucose is for long - term energy storage (in glycogen etc.), ATP is for short - term, immediate energy use, so C is true.
• Option D: Energy in glucose (chemical) can be transformed to ATP's energy (chemical) which is used for cellular work, and energy in glucose can be transformed (e.g., to heat), so D is false.
• Option E: Glucose can be metabolized and reused in cellular processes (e.g., in glycolysis, gluconeogenesis), but ATP is used and then ADP is recycled to make more ATP, so E is false.

So the true options are A and C.

Answer:

A. lactic acid fermentation

Question 3