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Bio 10-1

QuestionAnswer
What is a molecule that tells a cell to do something different? Ligund/signal molecule
What are the 4 ways that cells comunicate with eachother/describe 1. direct- plasma membranes touching 2. Paracrine-kind of close together signal molecules travel small distance 3. Endocrine- far apart signal molecules travel through circulatory system (hormones) 4. synaptic- between 2 nerves
What are 3 effects of binding signal molecules? 1. stop gene production 2. start gene production 3. acticates enzymes
What are 3 types of physical connection between cells? 1. tigt- plasma membranes fuse 2. anchored- Protein connectors 3. Communicating- cells create pores between them
What are 3 types of cell surface receptors? 1. ion channel 2. enzyme activator 3. G protein coupled receptor
What are the 2 types of second messengers? 1. cAMP 2. IP3 ad DAG
Most signal molecules are what by nature? (Polar or non polar) Polar
Where are receptors for hydrophobic molecules? Cytoplasm
What is intracellular signaling? Signalling within a cell
What is kinase? Phosphorylation by adding phosphate group
What is phosphotase? Phosphorylation by removing phosphate group
What is an important ion in activation of enzymes? Calcium
Created by: jessie4393
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