Imagine that you are running a marathon, and at the end of the race, you sprint to the finish line. Describe how your muscle cells are getting energy

Discuss the processes involved and detail the differences that occur at the start of your run and toward the end of your run.


Students should address the shift from aerobic cellular respiration to anaerobic lactate fermentation as oxygen becomes scarce for the muscle cells.

Biology & Microbiology

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Communication signals are usually _____

a. intraspecific b. interspecific c. not helpful to the receiver d. visual e. auditory

Biology & Microbiology

A saturated hydrocarbon molecule has

a. three double bonds. b. one double bond. c. one double and one triple bond. d. all single bonds. e. all triple bonds.

Biology & Microbiology

What kind of bond is formed between the 5? phosphate group of one nucleotide and the 3? hydroxyl (OH) group of the adjacent nucleotide?

A) ionic bond B) phosphodiester bond C) hydrogen bond D) disulfide bond E) hydroxyl bond

Biology & Microbiology

In the female, the ________ secretes both estrogen and progesterone, and if fertilization does not occur, this structure degenerates

Fill in the blank(s) with correct word

Biology & Microbiology