singling basics Flashcards
What is the name of the organism which can be both uni and multicellular depending on the environment ?
Dictosteylium
What are connexins?
proteins that create junctions between adjacent cells (Gap Junctions)
What is endocrine signaling?
Long distance signaling
What is an example of endocrine signaling?
response to adrenaline from adrenal gland (any hormone - traveling via blood or transpiration)
What is paracrine signaling?
Target cells are nearby
What is an example of paracrine signalling ?
Neurotransmitters or growth factors
What is autocrine signalling?
Cells make their own signal and react to it themselves
what keys features do ligands for cell surface receptors often have?
hydrophilic molecules, or charged molecules.
Usually small
What are the two types of receptors for Acetylcholine?
Nicotinic receptors and muscannic receptors
Where would you find nicotinic receptors and what type of receptor are they?
in skeletal muscle cells (post synaptic plasma membrane of neurones and neuromuscular junctions)
They are ion channel receptors
Where would you find muscannic receptors? What type of receptor are they?
Heart muscle cells and salivary glands. GPCR.
