Class notes

Midterm 2 Review

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Course
ABI 103

Institution
University Of California - Davis

Comprehensive review of topics covered on Exam 2 of ABI 103. Topics include: hormones, signal transduction, insulin and glucagon, glycogenolysis, gluconeogenesis, glycogen synthesis, lactic acid cycle, ketone synthesis, and anaerobic energy metabolism.

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Uploaded on September 3, 2024
Number of pages 17
Written in 2023/2024
Type Class notes
Professor(s) Lee pettey
Contains All classes

hormones
peptides
amines
insulin
steroids
anterior pituitary
posterior pituitary
parathyroid gland
pancreas
signal transduction
g proten receptors
tyrosine kinase receptor
glycogen
lactic acid
glycoge

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, Classification of Hormones Hormonal Action

peptides ·

hydrophilic hormones act via receptor proteins
·
chain of amino acids on cell surface

most hormones are peptides
-

polypeptides

↳ insulin , vasopressin hydrophilic hormones

produce another
-

glycoproteins
chemical as a second

have glucose component
·

messenger that
goes
↳ FSH LH on to pass the
,
insulin structure message

Amines

·

tyrosine derivatives

·

e
:
epinephrine
-
, norepinephrine , thyroid ,
melatonin

catecholamines

resemble amino side chains
acid lipophilic hormones can
directly enter cell (no
·

receptor needed)

Steroids

·

lipophilic ; derived from cholesterol

·
testosterone ,
-
estrogen , progesterone ,
cortisol

gonadal hormones

Non-steroidal Lipids
·
derived from arachidonic acid (essential FA)
·

prostaglandin E2 alpha

, Location of Hormone Secretion

Anterior
Pituitary Posterior
Pituitary Adrenal Gland-Cortex

·

growth hormone ·

vasopressin (antidiuretic ·

glucocorticoids (cortisol ,
aka

·

adrenocorticotropin hormone (ACTH) -

regulates water reabsorption stress hormone)

·

thyroid stimulating hormone (TSH) ·

oxytocin ·
mineral corticoids Caldosterone)
·
LH & FSH -

milk letdown
-

maintain electrolyte balance

·

prolactin uterine contractions by increasing Nat reabsorption
- -

K+ balance

Adrenal Gland-Medulla Parathyroid Gland Pancreatic Hormones

·
amines -

epinephrine and norepinephrine ·

parathyroid hormone (PTH) ·
insulin (t blood glucose)
-

fight or
flight response -responds to low blood cast ·

glucagon (4 blood glucose)
-can be
excitatory or
inhibitory
·

somatostatin -
slows metabolism

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