Chapter 1 Homeostasis and Cell Physiology

Homeostasis

disease

physiology

Positive feedback mechanism

What are some example of positive feedback mechanism?

Positive feedback mechanism is less common in nature T or F

the plasma membrane is __________ _________ which means is allows certain molecules to penetrate or permeate while excluding others

These type of molecules are non polar and readily diffuse across the lipid bilayer membrane without the aid of membrane proteins

Passive transport

Active transport

Passive transport if movement of molecules from high concentration to low concentration T or F

Simple diffusion

unassisted transport

Channel mediated facilitated diffusion

Channel proteins

hydrophilic proteins in lipid bilayer aid in the transport of small polar molecules and ions across the membrane T or F

Carrier Mediated Facilitated diffusion

What slows the transport of solute during carrier mediated facilitated diffusion?

Carrier mediated facilitated diffusion n transports molecules from _____ to ____ concentration

Primary Active Transport

Primary active transport involves the use of

In this form of transport, molecules are pumped against a concentration gradient at the expense of energy

Secondary active transport

In this form of transport the downhill movement of one molecule drives the uphill movement of another molecule

This form of transport involves the indirect us of ATP

What are the two categories of secondary active transport

What is another name for
countertransport

what is another name for cotransport

what is cotransport

what is counter transport

osmosis

tonicity

Isotonic solutions

hypotonic

hypertonic

crenation

lyse

There is an inversely proportional relationship between water distribution and adipose tissue deposition T or F

extracellular fluid and intracellular fluid make up what percentage of the water distribution in the human body?

extracellular fluid is made up of what two things?

Intracellular fluid makes up what percentage of bodily fluids

plasma makes up what percentage of the extracellular fluid?

interstitial fluid makes up what percent of the extracellular fluid

hyponatremia

symptoms of hyponatremia include

Euvolemic hyponatremia

hypervolemic hyponatremia

hypovolemic hyponatremia

if exercise induces excessive sweating thg than what type of electrolyte drink should be consumed

If exercise involves a high performance like weight lifting that what type of electrolyte drinks should be consumed

Salt and carbohydrate concentration is determined by the rate at which water needs to be absorbed T or F

What is HHS

Hyperglycemic hyperosmolar syndrome

What are the four components in a feedback system

effector

integrating center

sensor/receptor

Regulated variable/controlled variable

plasmalemma

Hydrophobic component of a cell

hydrophilic component of a cell