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List the two of the four types of bulk transport.  Which one is involved in hypercholesterolemia? [0.75 pt]

Briefly state which factor(s) can affect enzyme activity and which factors can affect the speed of enzyme activity. [1 pt]

The site of gas exchange in the lungs

Briefly define an enzyme and its role in reactions.  Does it affect the activation energy or the free energy of the substrates?  Does it change an exergonic reaction into an endergonic reaction or vice versa?  Explain. [3 pts]

A fantasy element, Fluon (Fl), has two isotopes with the following masses and abundances.  Isotope Mass (amu) Abundance Fl-70 70 90% Fl-72 72 10% Choose the closest estimate to the average atomic mass of this element.

What is the endomembrane system in an animal cell?  List three cell structures that are part of it.  List a cell structure that is NOT a part of it. [1.5 pt]

What would be the formula of the precipitate that forms when Pb(NO3)2 (aq) and K2SO4 (aq) are mixed?

The elemental symbol for manganese is Mg.

How does ATP drive endergonic reactions?  What happens to ATP during this process? [1 pt]

A patient presents to the emergency room with symptoms of a stroke. He is unable to move his right arm. The stroke is damaging the neural tissue in which part of the brain?