The passive movement of a substance (such as oxygen or salt) through a membrane from an area of high concentration to an area of low concentration is called:

What organelle makes ATP?

An atom with 6 valence electrons would be likely to form ___bonds.

If oxygen is listed on the Periodic Table as having an atomic number of 8, how many electrons are in its valence shell?

If a cell were unable to take up or make sugars, which class of molecule(s) would it be unable to make?

When HCl is added to water, it breaks down into hydrogen ions (H+) and chloride ions (Cl-). Based on this information, how would you classify this substance?

Describe the four levels of folding that a protein can go through to achieve its final shape. Why is this process necessary?

Learning new study skills and spending time mastering new strategies is an example of this kind of adjustment:

What is the relationship between education and income?

Suppose you could design a suicide prevention workshop, what would you include?