PBS 1.2.3 Forensic Toxicology

Which of the following best describes the term "Toxicology" in forensics?

• a) The study of insects to determine time of death

• b) The analysis of blood spatter patterns

• c) The study of chemical substances and their effects on the body

• d) The analysis of fingerprints

The physical breakdown of food.

• mechanical digestion
• elimination
• chemical digestion
• absorption

An example of this is chewing.

• mechanical digestion
• elimination
• chemical digestion
• absorption

Breaking down food by enzymes.  

• mechanical digestion
• elimination
• chemical digestion
• absorption

Breaking down of food into simple substances.  

• digestion
• elimination
• mouth
• absorption

Nutrients diffuse into the blood vessels for transport all around the body.  Occurs in the small intestine.

• digestion
• elimination
• mouth
• absorption

This digests (breaks down) protein both MECHANICALLY (churning) and CHEMICALLY (using the enzyme pepsin).

• mouth
• small intestine
• large intestine
• stomach

When the large intestine finishes absorbing extra water...

• ...carbohydrate digestion begins.
• ...protein digestion begins.
• ...fats are now completely digested.
• ...solid wastes are ready for removal from the body.

Used as initial screening to indicate if a suspected drug is present. Cheap and easy and less accurate

• Presumptive Test

• Confirmatory test

• Stimulant

Used after presumptive test confirms the presence of a drug. More expensive, accurate, and time consuming

• depressant

• Presumptive test

• Confirmatory test