Question

Cellular activity can vary based on sensitivity to hormones, and cellular activity can therefore either be upregulated or down-regulated by those hormones. What would likely cause a greater response from cells that are controlled by a hormone? a. hormone levels increase and the number of target cell receptors increase b. hormone levels decrease and the number of target cell receptors increase c. hormone levels increase and the number of target cell receptors decrease d. hormone levels decrease and the number of target cell receptors decrease

Name: Problem 57, Chapter 28: Biology for AP® Courses
Uploaded: 2019-08-23T20:55:51-08:00
Duration: 1 min 6 s
Channel: Grant Castaneda

   Cellular activity can vary based on sensitivity to hormones, and cellular activity can therefore either be upregulated or down-regulated by those hormones. What would likely cause a greater response from cells that are controlled by a hormone?
a. hormone levels increase and the number of target cell receptors increase
b. hormone levels decrease and the number of target cell receptors increase
c. hormone levels increase and the number of target cell receptors decrease
d. hormone levels decrease and the number of target cell receptors decrease

Biology for AP® Courses

Julianne Zedalis,… 1st Edition

Chapter 28, Problem 57

Instant Answer

Solved by Expert Grant Castaneda

08/23/2019

Step 1

- Hormones are chemical messengers that regulate various functions in the body by binding to specific receptors on target cells. - The effect of a hormone on a cell depends on the concentration of the hormone and the number of receptors available on the target Show more…

Show all steps

Thanks for your feedback!

Cellular activity can vary based on sensitivity to hormones, and cellular activity can therefore either be upregulated or down-regulated by those hormones. What would likely cause a greater response from cells that are controlled by a hormone? a. hormone levels increase and the number of target cell receptors increase b. hormone levels decrease and the number of target cell receptors increase c. hormone levels increase and the number of target cell receptors decrease d. hormone levels decrease and the number of target cell receptors decrease

Play audio

Feedback

Grant Castaneda and 93 other educators are ready to help you.

Ask a new question

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Upregulation and Downregulation

Upregulation and downregulation are regulatory mechanisms by which cells adjust their sensitivity to hormones. Upregulation increases receptor density in response to higher hormone levels or sustained demand, thereby enhancing the response, while downregulation decreases receptor density to attenuate the signal.

Hormonal Signaling

Hormonal signaling involves hormones acting as chemical messengers that bind to specific receptors on target cells to initiate a response. The strength of the response depends on the hormone’s concentration and the cell's ability to receive the signal.

Receptor Density

Receptor density refers to the number of receptors available on a cell's surface for binding with a hormone. A higher number of receptors increases the probability of hormone binding, leading to an amplified cellular response.

Please give Ace some feedback