Exam 4: Energy and Metabolism

Order the steps of exocytosis:                     1. the vesicle membrane fuses with the plasma membrane.                     2. the vesicle moves to the plasma membrane.                     3. the vesicles contents are released to the extracellular fluid.

Which metabolite of alcohol is most toxic?

If the activation energy for a chemical reaction is very high, the ____.

Why doesn't the gasoline in your car spontaneously ignite into flames? (The reaction of gasoline with oxygen is called a combustion reaction, and is the reaction that is used to power your car).

The sodium-potassium pump is an example of ____.

Which is true about guncotton?

Transporting a solute against its concentration gradient requires ____.

Unlike plants, fungi, and bacteria, animal cells cannot resist volume increases in hypotonic environments. This is because unlike those other organisms, animal cells ____.

Which human organ is responsible for breaking down ethanol and other toxins?

Wilting of a plant occurs ____.

F. acidarmanus , a species of bacteria that lives in California copper mines, has adapted to its environment by altering the ____ at which its enzymes function.

Which solution has the potential to diffuse the fastest?

The fact that the earth does not go up in flames in spite of the richness of oxygen in our environment is related to which of the following concepts?

When a protein denatures, it ____.

Glucose is transported into a cell by ____.

A series of enzyme-mediated reactions by which cells build, remodel, or break down organic molecules is known as ____.