Cell signaling involves converting extracellular signals to specific responses inside the target cell. Different molecules are involved at each stage of the process. In this activity, you will sort items based on which stage they are involved in:1. reception 2. transduction3. response

Reception:

- G protein-coupled receptor

- Receptor Tyrosine Kinase

- Signaling Molecule

Transduction:

- Phosphorylation Cascade

- Second Messenger

- Adenylyl Cyclase

- IP3, Ca2+, cAMP

Response:

- Protein Synthesis

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.