Explain why an amino acid hormone would not have any effect on a steroid hormone receptor.

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

The fluid mosaic model of the membrane proposed that membranes