Question 127 Which is the more appropriate statement: Opioids have endorphin act

Question

Question 127

Which is the more appropriate statement: Opioids have endorphin activity, or endorphins have opioid activity? Explain your answer.

A.Opioids have endorphin activity because endorphins likely came first.

B.Endorphins have opioid activity because opioids likely came first.

C.Opioids have endorphin activity because plants likely created opioids to mimic their own endorphin systems.

D.Endorphins have opioid activity because plants likely created opioids to mimic their own endorphin systems.

Question 128

Organic chemicals are so suitable for making drugs because ________.

A.our bodies are also made of organic chemicals

B.they can be produced fairly inexpensively from petroleum

C.of the vast diversity of structures they can form

D.they tend to dissolve well within the blood stream

Question 129

Why does chemotherapy work best for early stages of cancer instead of late stages?

A.Chemotherapy works best on cells that are dividing rapidly, such as those in early stage tumors.

B.Chemotherapy works better on a smaller number of cells because cells that are not destroyed can be cleaned up by the immune system.

C.Chemotherapy is more effective the longer the chemical treatment.

D.All of these

E.None of these

Question 130

How might the structure of benzocaine be modified to create a compound having greater anesthetic properties? A.transform the ester group into an ether

B.remove the nitrogen found bonded to the benzene ring

C.extend the ester group away from the benzene ring and add an additional nitrogen atom

D.add more carbon atoms to the nitrogen found bonded to the benzene ring

Question 131

Which of the following environmental resources is impacted by the following example?

The population of the earth continues to increase.

A.the air

B.the soil

C.the water

D.All of these

E.None of these

Question 132

Which of the following environmental resources is indirectly impacted by the following example?

A forest is cut down to make room for crops.

A.the air

B.the soil

C.the water

D.All of these

E.None of these

Explanation / Answer

132-C

131-D

130-B

129-B

128-D

127-B

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