Which of the Following Is NOT a Common Second Messenger

question 2

Multiple Choice

Which of the following is NOT a common second messenger in cell signaling?

• A) Ca²⁺
• B) Cyclic adenosine monophosphate
• C) Diacylglycerol
• D) Tyrosine
• E) Inositol trisphosphate

---

Definitions:

Palmately Netted

A leaf venation pattern where principal veins spread out from a single point like the fingers of a hand.

Pinnately Netted

Describes a leaf vein pattern where a main vein runs the length of the leaf and smaller veins branch off from the main vein to the leaf edges, resembling a feather.

Mesophyll

The inner tissue of a leaf, containing many chloroplasts, where photosynthesis takes place.

Photosynthetic Ground

The base environment or substrate that supports photosynthetic organisms, providing necessary conditions for light absorption and CO2 fixation.