Chemical Signals in Animals
12 important questions on Chemical Signals in Animals
In which two criteria are communication between animal cells via secreted signals classified?
route taken by the signal in reaching its target.
What classes of local regulators do we have?
prostaglandins (modified fatty acid)
nitric oxid(gas functions in the body as both refulator or neutrontransmitter)
Which classes of hormones do we have?
steroid hormone,
amines
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What is the cellular response pathway of a water soluble hormone?
What is the cellular response pathway of a lipid soluble hormone?
What two basic types of hormone secretion do we have?
What is simple endocrine pathway?
What is simple neuroendocrine pathway?
What is negative feedback?
What is positive feedback?
How does insulin reduces blood glucose levels?
slowing glycogen breakdown in the liver
promoting fat storage, not breakdown
How does glucagon increase blood glucose level?
stimulating breakdown of fat and protein and conversion into glucose (gluconeogenese).
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