List 3 functions of the smooth endoplasmic reticulum.

Methane gas (CH4), on complete combustion in air, produces: CO2 H2 H2O

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

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

The site of gas exchange in the lungs

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.

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.

How does ATP drive endergonic reactions?  What happens to ATP during this process?

The elemental symbol for manganese is Mg.

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.