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Proteins interact with their ligand or substrate at a specific spot on their surface, called a(n) _________. Type the best answer into the text box below:

Proteins have an ideal or __________ temperature and pH at which it has its ideal structure and highest level of activity. Type the best answer into the text box below:

This measurement of concentration is defined as the number of moles of solute per liter of solvent.

The passive movement of solutes from a place of high concentration to a place of low concentration is called _________.

Study the diagram below carefully.  It shows a cell membrane (tan) separating the extracellular fluid (A) from the intracellular fluid (B). The small circles represent polar solutes dissolved in water. Use the pull-down menus below to insert the best, technical terms into the following sentences to make them true: In the above diagram, water will move across the plasma membrane by the process of [blank1].  For the situation seen above, water will move [blank2] the cell.  The inside of the cell above would be considered [blank3], relative to the outside of the cell.  If the cell above is an erythrocyte, it will eventually [blank4] in this solution.

If a K+ channel opens in the plasma membrane, those ions will flow out of the cell by facilitated diffusion.

Think about the virtual microscope that you learned to use in Lab 1.  When using a microscope like that in the laboratory, as you increase the magnification of the image, the light intensity will _________.

When using a microscope, like the virtual example you used on Connect for Lab 1, setting the _________ too high or too low will specifically degrade the contrast of your image.

This is the formal name for the type of microscope that you learned about in a Virtual Labs simulations during Lab 1. Type the best answer in the text box below:

When using a standard laboratory microscope (like the virtual one you learned about in Lab 1), you should always start with the 4x objective lens in place over the specimen, because …