What do ALL hormones have in common?

Which one of the following is NOT a possible function of the extracellular matrix in animal cells?

The use of a carrier protein to move solute molecules across the plasma membrane from areas of high to low concentration is known as:

In ionic bonding, 

A. Describe the purpose of signal transduction and how it differs from cell-to-cell communication. (4 pts) B. Discuss the key step (s) in a signal cascade. (1 pts)

You have died and are being given the choice to be reincarnated as either a prokaryote or a eukaryote.  (Just go with the premise.)   A. List the characteristics attributed to all cells.  Then differentiate between prokaryotes and eukaryotes. (4 pts) B. Outline the reasons why you would choose to be a prokaryote or a eukaryote.  Present specific examples. (4 pts.)

What molecule causes a portion of a DNA molecule to unwind for transcription?

Facilitated diffusion requires a specific transporter for a specific molecule.

A group of cells was treated with a protein-digesting enzyme. Which one of the following processes would be LEAST affected by this treatment?

Which of the following is/ are characteristic of regulated variables?