SBI 4U Homeostasis Review PDF

SBI 4U Homeostasis Review Text Book Chapters: 9, 10, 11 Define homeostasis Why is homeostasis important Identify the components of a typical feedback loop Describe negative feedback loop Describe positive feedback loop Describe the structure and function of the nephron Describe aquaporins and their...

SBI 4U Homeostasis Review Text Book Chapters: 9, 10, 11 Define homeostasis Why is homeostasis important Identify the components of a typical feedback loop Describe negative feedback loop Describe positive feedback loop Describe the structure and function of the nephron Describe aquaporins and their function Label a Kidney Identify organ systems involved in homeostasis Define thermoregulation Compare thermoregulation between ectotherms and endotherms Identify mechanisms of heat loss Define osmoregulation and the organ that performs it Identify nitrogenous waste produced by humans and how it is produced What is urinalysis, what can be checked for in urinalysis, and what are some conditions or illnesses that can be detected. Why would proteinuria (protein in urine) be a sign of damage to glomerulus Why does caffeine increase urination Label the endocrine system What are the major hormones of the anterior, posterior and pituitary glands? What are the target organs and/or tissues of these major hormones Why would synthetic hormones need to be administered sometimes What are endocrine and exocrine glands and examples of each Identify two methods of how hormones bind to receptors What gland requires Iodine to function properly and what happens if it doesn't have enough What do the adrenal gland hormones help regulate How does the parathyroid gland effect calcium levels in the body Explain the location and role of the pineal gland Is testosterone a natural hormone or a synthetic hormone and why What is epinephrine and what are the effects on the body when it is released into the bloodstream Why do some hormones have multiple effects on different target tissues Identify the parts of the nervous system (Central and peripheral) Identify the neural signalling pathway Explain the pathway and parts of the reflex arc (including types of neurons) What is the purpose of the myelin sheath What is the purpose of the nodes of ranvier What is difference between chemical synapse and electrical synapse Why does a neuron need a refractory period What is the resting membrane potential (mV) What happens to Na+ channels when threshold is reached Identify the difference between white matter and grey matter Explain the purpose of the blood brain barrier Explain the function of the sympathetic nervous system and the parasympathetic nervous system Compare afferent and efferent neurons What causes a membrane potential in the neuron Identify the mechanism for experiencing pain Explain the importance of salt in the nervous system Label a neuron and describe each parts function