Carbon dioxide and water readily combine to form carbonic acid. The change in pH as the acid dissociates can be demonstrated with an indicator dye that changes color at a particular pH. Following this lab in which the color of the solution was observed to change, one lab group forgot to dump the beakers at the end of the lab period. The next day would you expect the beakers to look the same as
they did after being bubbled with CO2? If not, explain in terms of reversible reactions and equilibrium disturbance.
What will be an ideal response?
The next day, the solutions had changed back to their original color (before being bubbled with CO2). The carbon dioxide dissipated over night, driving the reaction back in the reverse direction, because the amount of substrate
changed. This caused the pH to increase again, above the level required to maintain the color change.
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Ribosomes that are attached to the RER are called "free ribosomes"
Indicate whether this statement is true or false.
All extensor muscles of the upper limb are innervated by the ________ nerve or a branch of that nerve.
A) ulnar B) axillary C) musculocutaneous D) median E) radial
Chromosome abnormalities include having a number other than 46, a chromosome that
has an inverted sequence, and different chromosome types that exchange parts. Indicate whether the statement is true or false
What is/are the function(s) of the organ system labeled #3?
A) help control body temperature
B) provides support; produces heat
C) provides support; protects tissues; stores minerals
D) directs immediate responses to stimuli
E) defends against infection and disease