Define the first and second laws of thermodynamics.

the C shape of the tracheal cartilages is important because…

Lymphatic capillaries are known for …

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?

The site of gas exchange in the lungs

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

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.

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.