Question

What are the three intracellular signaling molecules discussed in the text?

1) PTH, IGF, BMP
2) PTH, GHRH, BMP
3) IGF, GH, BMP
4) IGF, GHRH, BMP

Answer 1

The correct intracellular signaling molecules discussed are Insulin-like Growth Factors (IGF), Growth Hormone (GH), and Bone Morphogenetic Proteins (BMP), which correspond to option 3 in the question.

Step-by-step explanation:

The three intracellular signaling molecules discussed in the text are Insulin-like Growth Factors (IGF), Growth Hormone (GH), and Bone Morphogenetic Proteins (BMP). Intracellular signaling is crucial for cells to communicate and dictate various biological responses such as protein synthesis, metabolism changes, cell growth, or cell death. Hormones like IGF play a vital role in cellular proliferation and anti-apoptotic activities, while GH is key for stimulating growth, cell reproduction, and cell regeneration. BMPs are involved in bone and cartilage development. Of the provided options, only one (IGF, GH, BMP) matches the discussed functions related to intracellular signaling. Therefore, the correct answer to the question is option 3) IGF, GH, BMP.