When light strikes photoreceptors, which of the following takes place?
A. More transmitter substance is released.
B. The release of transmitter substance ceases.
C. There is no change in amount of transmitter substance released.
D. Na+4 channels that were closed become open.
Answer: B
You might also like to view...
Robert is at a party and spots an extremely attractive young woman. If Robert's personality is completely governed by his id, what will he be MOST likely to do?
A) hit on her crudely and attempt to kiss her B) sublimate his sexual desires by watching the football game on TV C) mentally berate himself for having dirty, immoral sexual thoughts D) have a conversation with her and politely ask her out on a date
The fastest-growing age group in the population of the United States is people of ages ______ years
20–35 35–65 65–85 over 100
Generally, people make better decisions in groups than decisions by themselves
Indicate whether the statement is true or false
Tim is overweight. His physician has decided to
test him to see if there is a problem with the regulation of his __________. Which endocrine gland will be the focus of diagnostic testing? a) adrenal glands b) thymus c) thyroid d) pancreas