Mitosis
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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What does cell communication require? | ligand and receptor protein and signal transduction
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Yes
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Ligands can bind to any receptor protein? |
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What are the 4 mechanisms for communication? | direct signaling, paracrine signaling, endocrine signaling, and synaptic signaling
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Direct signaling is important in early development? | Yes
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Where does direct signaling occur? | Plasma membrane
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Where is paracrine signaling important? | early development and immune system
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How does paracrine signaling move? | Through fluid
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Who uses endocrine signaling? | Humans and plants
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Is endocrine signaling intercellular communication? | Yes
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Why are endocrine signals long lived? | They have to travel throughout the entire body
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What is one negative thing that occurs during endocrine signaling? | The hormones that are released from that cell, affect other cells throughout the body
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During synaptic signaling, nerve cells release the signal(neurotransmitter) which binds to what? | Receptors on nearby cells
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Yes depending on where it is
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What is signal transduction? | The events within the cell that occur in response to a signal
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Enzyme that removes phosphate from proteins | Phosphatetase
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Enzyme that adds phosphate groups from add ATP to proteins | Kinase
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Can be defined by their location and chemical nature of ligands | Receptor Types
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Where are intracellular receptors found? |
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Where are cell surface/membrane receptors found? | Outside of the cell
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What are the 3 subclasses of membrane transporters? | Chemically gated ion channels, enzymatic receptors, and g protein-coupled
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What do bacteria divide by? | Binary fission
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Where does replication take place? | Begins at the origin of replication and proceeds bidirectionally to site of termination
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Yes
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