Explore BrainMass

Physiological Changes

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

The human body manifests physiological changes in every organ system throughout the process of eating, from the time a person first anticipates food to the elimination of waste.

a) design a controlled experiment where you test the hypothesis that the body's reaction to eating begins before food enters the body.

b) describe physiological changes that occur in three different organ systems when food is ingested and how these systems coordinate a response in the human body.

© BrainMass Inc. brainmass.com October 24, 2018, 9:26 pm ad1c9bdddf

Solution Preview

One hypothesis we could test would be how the digestive system responds to the aroma of food, but not its sight. I would choose a very aromatic food such as freshly baked bread.

Obtain 20 volunteers and randomly divide them into two groups -- a control group and an experimental group.

Blindfold each individual. Expose the experimental group to the scent of freshly baked bread.

Expose the control group to the scent of ... nothing.

Of course, no individual should know what group he's in. It should be blind.

Make sure that no food enters the mouths of anyone.

Collect saliva from each of the 20 individuals before the experiment begins. That means that we collect saliva for all 20 individuals before they are exposed to ...

See Also This Related BrainMass Solution

Physical Chemistry Collision Theory

I have a list of terms that needs to be defined in a Physical Chemistry course. With each definition I need an example for each term, as a description to it or so

term Chapter
collision theory
transition state theory
rate constant
Arrhenius equation
integrated rate law
rate law
activation energy
pseudo first order
preexponential factor (a)
half life
zeroth order reaction
first order reaction
second order reaction
third order reaction
method of initial rates
isolation method
reaction profile
collision frequency
reaction coordinate
flash photolysis
stopped flow experiment
temperature jump experiment
elementary reactions
consecutive reactions
unimolecular reactions
steady state approximation
rate-determining step
diffusion-controlled limit
Homogeneous catalyst
heterogeneous catalyst
Michealis- Menten kinetics
KM Michealis constant
Maximum Turnover number
Maximum Velocity
Line-Weaver-Burke Plot
Woolf Plot
Eadee-Hofstee Plot
Competitive inhibitor
Non-Competitive Inhibitor
Uncompetitive Inhibitor
Chain Reaction
Inhibition Step
Termination Step
Retardation Step
Branching Step

View Full Posting Details