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Unit 4

AP Biology Unit 4 Vocabulary- Silim

TermDefinition
Target Cell Cell that receives the signaling molecule, has protein receptor.
Ligand When a signaling molecule attaches to the receptor
Phosphorylation Attachment of a phosphoryl group
Receptor Protein Protein that attaches to liagand, attaches to signaling molecule
Secondary Messenger Released in response to liagand, activates intercellular processes. bind effectors to response
Signal Amplification Second messnger amplify signals, sending the signal out further
Signal Transduction How a signal is transferred throughout a cell
Response End of signal transduction pathway, result of cellular processes
Feedback Mechanisms that alter the original change, ex. negative feedback
Negative Feedback Reduces change, ex. body temperature
Positive Feedback Amplifies Change, ex. giving birth
Asexual Reproduction Gametes not involved or no change in chromosomes. Inherit genes from single parent
Cell Cycle G1, S, G2, and M phase, how a cell reproduces
Interphase Only g1, S, and G2 phase. Where cells grows and has checkpoints
Mitosis Process where cell divides, resulting in two daughter cells
Cancer Accumulation of damaged cells, that keep multiplying. Can/ can not be dangerous
Created by: melonhokage
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