PCL201H1 Lecture 2: Lecture 2 Drug Basics

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azuresquirrel208

11 Apr 2012

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Toxin: may be used as a drug adverse effects poisonous naturally formed can cause harm. Drug can be naturally produced can cause harm: may be a toxin. It can replace (agonist)/assist a natural chemical from the body. (selective. Serotonin reuptake inhibitor ssri for depression: alzheimer"s disease (increase acetylcholine, parkinson"s disease (increase dopamine, blocks the metabolism of neurotransmitters, normally neurotransmitter is released and received. Prozac blocks reuptake of neurotransmitter, increasing the amount of neurotransmitter in synaptic cleft, prolonging activity. It can be a novel compound that acts on a site in the body to activate or inhibit something (non-steroidal anti-inflammatory agent nsaid: nsaid blocks enzymes that form prostaglandins in cycloxygenase pathway. It can change or block/inhibit formation of compound/chemical in body: ace inhibitor inhibits ace (angiotensin converting enzyme), decreasing blood pressure, decreasing na+ reabsorption. It can block an endogenous compound from working (antagonist: atropine sulfate to dilate pupils. Antagonist that blocks ach (endogenous) from binding to its receptor.

Related Questions

Which of the following properties of compounds are used to describe a characteristic that can be observed or measured? And which of the following is used to describe a characteristic of a substance that can only be observed during some type of chemical reaction?

A. Physical Property

B. Chemical Property

C. Decomposition Factor

D. Solubility Factor

E. Physiological Property

F. Density

G. Concentration

H. Statistical Property

champagneserval706

Calcination is:

A.	the process of heating an ore to drive off volatile compounds.
B.	forming metal parts using heat and small crystals of metal.
	C. heating an ore, in the presence of helium or another substance, in order to purify the ore and obtain the liquid metal.
	D. selectively dissolving a metal in solution to separate it from its ore.
	E. heating an ore, in the presence of helium or another substance, in order to cause a chemical reaction that drives off newly formed volatile compounds. Which one is it?

Matt and Maria have now received and begun to eat their Chinese takeout. They have accomplished biting off a portion of a piece of their General Tso's chicken and rice and proceeded to chew and swallow. For this report, you will describe the path the chicken and rice follows and the physiological processing that take place to convert the chicken and rice into their nutritional components that can be used by the body for energy and homeostatic processes. Consider the following as you proceed through your research and discussion of this topic.

1.Through which organs, and in what order does the bolus of food travel?

2. How long does the food remain in each segment of the digestive tract and what physiological processing takes place during this time?

3. What role does the autonomic nervous system play in controlling the movement of food through the digestive tract? What other physical or physiological factors can impact the movement of food though the digestive tract?

4. What specific enzyme or other digestive substances are associated with each segment of the digestive tract and which cells produce these substances? What specific components of the chicken and rice (proteins, carbohydrates, etc.) are processed by each of these substances?

5. What role do the accessory digestive organs play in the process? What are the specific cells of each of these accessory organs and what substances do they produce? Where in the digestive tract are the substances introduced into the digestive process?

6.What is the ultimate fate of the digested chicken and rice? What was the initial biological structure of the nutritional components first consumed (example proteins breaking down to their simpler components) and what are the resulting products resulting from digestion that are now ready and available for use by the body for energy and homeostasis?

7. What is the fate of the solid and fluid components that are not absorbed into the body? When and where does control of movement of digestive tract content transition from the autonomic nervous system controlled smooth muscles to peripheral nervous system control of voluntary skeletal muscles?

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PCL201H1 Lecture 2: Lecture 2 Drug Basics

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