Which of the Following Is a Local Regulator Responsible for Activating

question 39

Multiple Choice

Which of the following is a local regulator responsible for activating an enzyme that relaxes smooth muscle cells?

• A)nitric oxide
• B)prostaglandin F
• C)epinephrine
• D)A and B only
• E)A, B, and C

---

Definitions:

Autotrophs

Organisms that can produce their own food from inorganic substances using light or chemical energy such as plants and certain bacteria and algae.

Carbon Fixation

The process by which inorganic carbon (usually in the form of CO2) is converted to organic compounds by living organisms, prominently through photosynthesis in plants.

Photosynthetic Organisms

Organisms that are capable of photosynthesis, a process of converting light energy into chemical energy, primarily occurring in plants, algae, and certain bacteria.

Decomposers

Organisms, such as bacteria and fungi, that break down dead organic matter, recycling nutrients back into the ecosystem.