Question 1

Many common garden plants are poisonous.

Accepted Answer

A) True 
 B)False

Question 2

Strong acids and bases are damaging to living cells because even in dilute solutions they

Accepted Answer

A) are oxidizing agents. 
B) are reducing agents. 
C) catalyze the hydrolysis of proteins. 
D) form dangerous peroxides. 
A) are oxidizing agents. 
B) are reducing agents. 
C) catalyze the hydrolysis of proteins. 
D) form dangerous peroxides.

Question 3

The LD₅₀ value for a given compound and species is the same no matter how the substance is administered.

Accepted Answer

A) True 
 B)False

Question 4

Most hazardous chemicals are so dangerous that we should never use them.

Accepted Answer

A) True 
 B)False

Question 5

Botulin toxin is the most poisonous substance known.

Accepted Answer

A) True 
 B)False

Question 6

The P-450 enzymes oxidize water-soluble substances into fat-soluble substances that can easily be excreted.

Accepted Answer

A) True 
 B)False

Question 7

The antidote for mercury poisoning,BAL,acts by

Accepted Answer

A) precipitating mercury. 
B) reducing Hg²⁺ to Hg. 
C) oxidizing Hg to Hg²⁺. 
D) complexing the mercury. 
A) precipitating mercury. 
B) reducing Hg²⁺ to Hg. 
C) oxidizing Hg to Hg²⁺. 
D) complexing the mercury.

Question 8

What is LD₅₀? Use the following compounds and their LD₅₀s to explain.
Caffeine: LD₅₀ = 0.13 g/kg mice
Sodium Cyanide: LD₅₀ = 15 mg/kg (estimated)

Accepted Answer

LD₅₀, or the lethal dose for 50% of the

Question 9

Which compound has been used as a poison to kill predators?

Accepted Answer

A) NaCN 
B) fluoroacetic acid 
C) Cd 
D) DDT 
A) NaCN 
B) fluoroacetic acid 
C) Cd 
D) DDT

Question 10

What type of damage do all corrosive poisons cause to living tissue?

Accepted Answer

Corrosives cause the

Question 11

Enzymes are often deactivated by oxidizing agents such as ozone.

Accepted Answer

A) True 
 B)False

Question 12

Most carcinogens occur naturally.

Accepted Answer

A) True 
 B)False

Question 13

Cyanides increase the ability of hemoglobin to carry oxygen.

Accepted Answer

A) True 
 B)False

Question 14

Which of these is NOT considered a heavy metal?

Accepted Answer

A) Ca 
B) Ag 
C) Hg 
D) Au 
A) Ca 
B) Ag 
C) Hg 
D) Au

Question 15

Which class of compounds is thought to be possibly anticarcinogenic?

Accepted Answer

A) prostaglandins 
B) oxidizing agents 
C) reducing agents 
D) antioxidants 
A) prostaglandins 
B) oxidizing agents 
C) reducing agents 
D) antioxidants

Question 16

Organophosphorus compounds are used as

Accepted Answer

A) insecticides. 
B) antiviral agents. 
C) antipsychotic drugs. 
D) antibiotics. 
A) insecticides. 
B) antiviral agents. 
C) antipsychotic drugs. 
D) antibiotics.

Question 17

Toxicology is the study of poisons that come from synthetic sources,but not from natural sources.

Accepted Answer

A) True 
 B)False

Question 18

Liver enzymes alter poisons to make them less toxic.

Accepted Answer

A) True 
 B)False

Question 19

Oxidizing agents like ozone are classified as

Accepted Answer

A) blood agents. 
B) nerve poisons. 
C) corrosive poisons. 
D) carcinogens. 
A) blood agents. 
B) nerve poisons. 
C) corrosive poisons. 
D) carcinogens.

Question 20

Which of the following types of hazardous waste requires special containers because it will react with normal container materials?

Accepted Answer

A) corrosive waste 
B) flammable waste 
C) reactive waste 
D) toxic waste 
A) corrosive waste 
B) flammable waste 
C) reactive waste 
D) toxic waste

Exam 22: Poisons

Many common garden plants are poisonous.

Strong acids and bases are damaging to living cells because even in dilute solutions they

The LD₅₀ value for a given compound and species is the same no matter how the substance is administered.

Most hazardous chemicals are so dangerous that we should never use them.

Botulin toxin is the most poisonous substance known.

The P-450 enzymes oxidize water-soluble substances into fat-soluble substances that can easily be excreted.

The antidote for mercury poisoning,BAL,acts by

What is LD₅₀? Use the following compounds and their LD₅₀s to explain. Caffeine: LD₅₀ = 0.13 g/kg mice Sodium Cyanide: LD₅₀ = 15 mg/kg (estimated)

Which compound has been used as a poison to kill predators?

What type of damage do all corrosive poisons cause to living tissue?

Enzymes are often deactivated by oxidizing agents such as ozone.

Most carcinogens occur naturally.

Cyanides increase the ability of hemoglobin to carry oxygen.

Which of these is NOT considered a heavy metal?

Which class of compounds is thought to be possibly anticarcinogenic?

Organophosphorus compounds are used as

Toxicology is the study of poisons that come from synthetic sources,but not from natural sources.

Liver enzymes alter poisons to make them less toxic.

Oxidizing agents like ozone are classified as

Which of the following types of hazardous waste requires special containers because it will react with normal container materials?

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