Proteins that are part of signal transduction pathways in the cell are located in
A) the endoplasmic reticulum and Golgi apparatus.
B) microtubules and microfilaments.
C) cytoplasm and plasma membrane.
D) nucleus and nucleolus.
E) mitochondria and lysosomes.

Question

Quizplus · Accepted Answer

Signal transduction pathways involve the transmission of signals across the plasma membrane into the cytoplasm, and often into the nucleus. Therefore, proteins involved in these pathways are located in the cytoplasm and plasma membrane.

Proteins That Are Part of Signal Transduction Pathways in the Cell