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Biology Unit Planner: Homeostasis
References:
www.loreescience.ca  Grade 12 Biology  Homeostasis
Nelson: Biology 12  Unit 4: Chapters 9-11
Topics, Activities & Assignments
Key Concepts
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Homeostasis
Negative/Positive Feedback
Feedback Loops
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What can be regulated
Why regulate
Advantages of +/- loops
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Thermoregulation
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Endo vs. Ectotherms
Response to heat/cold
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Urinary system structure and function
Metabolic wastes
Formation of urine
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Kidney anatomy – Bowman’s capsule, glomerulus,
nephron, ureter, bladder
Filtration, reabsorption, secretion
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Water balance
Comparison of solutes in plasma,
nephron & urine
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ADH, blood pressure, pH balance
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Importance of the endocrine system
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Anatomy of glands – hypothalamus, pituitary gland
Hormones: steroid vs. protein, mechanisms
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Effects of hormones on blood sugar
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Pancreas, insulin, glucagon, diabetes
Hormones that affect metabolism
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Thyroid, parathyroid gland
Growth hormone, iodine & T3/T4
Disorders
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Adjustments to stress
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Adrenal glands
Epinephrine & norepinephrine
Mineralo- & gluco-corticoids
Performance enhancers
Disorders & effects
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Importance of the nervous system
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Branches – CNS, PNS, motor vs. sensory
Neurons: structure, function, threshold, resting
potential, action potential
Neurotransmitters: synaptic clefts, graded potentials
Brain: anatomy, compartmentalization, motor vs
sensory areas
Sensing: Eye, Ear
Drugs: painkillers, sedatives, hallucinogens, narcotics,
over-the-counter medications
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Electrochemical impulses
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Central nervous system
Autonomic nervous system
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The Brain
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Afferent
Aldosterone
Ammonia
Anterior Pituitary
Antidiuretic Hormone
Bicarbonate
Bladder
Bowman’s Capsule
Buffer System
cAMP
Collecting Ducts
Control Center
Distal Tubule
Diurnal
Ectotherm
Effector
Endocrine
Endocrine Gland
Endotherm
Equilibrium
Excretion
Filtrate
Filtration
Glomerulus
Growth Hormone
Homeostasis
Hypothalamus
Interstitial Fluid
Involuntary
Juxtaglomerular apparatus
Kidney
Loop of Henle
Negative Feedback
Nephron
Nervous
Non-Target Hormone
Osmoreceptors
Osmotic
Osmotic Gradient
Oxytocin
Positive Feedback
Posterior Pituitary
Prolactin
Protein Hormone
Proximal Tubule
Reabsorption
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Receptor
Regulator
Secondary Messenger
Secretion
Steroid Hormone
Target Hormone
Urea
Ureter
Urethra
Uric Acid
ACTH
Adrenal Cortex
Adrenal Medulla
Afferent
Calcitonin
Cortisol
Efferent
Epinephrine
Glucagon
Glucocorticoids
Glycogen
Growth Hormone
Insulin
Interstitial Cells
Islets of Langerhans
- Mineralcorticoids
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Norepinephrine
Parathyroid
Thyroid
Thyroxine (T4)
Triiodothyronine (T3)
Type I Diabetes
Type II Diabetes
α-cells
β-cells
Absolute Refractory Period
Action Potential
Autoreceptor
Axon
Axon Terminal
Calcium Channel
Cerebellum
Dendrite
Depolarizing Phase
Dorsal Horn
Dorsal Root
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Excitatory NT
Frontal Lobe
Grey Matter
Hyperpolarization
Inhibitory NT
Medulla
Meninges
Meningitis
Motor Cortex
Myelin
Neurilemma
Neurotransmitter
Node of Ranvier
NT Re-Uptake Pump
Occipital Lobe
Parietal Lobe
Postsynaptic Neuron
Potassium Pump
Presynaptic Neuron
Relative Refractory Period
Repolarizing Phase
Resting Membrane
Potential
Saltatory Conduction
Schwann Cell
Sensory Cortex
Sodium Pump
Spatial Summation
Spinal Ganglion
Stimulus
Summation
Synapse
Synaptic Cleft
Synaptic Vesicle
Temporal Lobe
Temporal Summation
Threshold
Ventral Horn
Ventral Root
White Matter