Question

LeyUUL CICILILED W H ILI AaBbccde ABBCODE AaBbCcDc AaBbccode Aa Heading 2 No Spacing Heading 1 AAAA * ADA IAD 1) Common drugs originate from A) Natural products B) laboratory synthesis Chemical derivatives D) all of the above 2) A medicine is a drug that A) Provides a euphoric effect B) Is isolated from a plant C) Kills bacteria D) Has therapeutic properties 3) Which of the following would be an example of a synergistic effect? A) Aspirin reduces fever and thin the blood. B) Caffeine suppresses the appetite and causes the jitters. C) Antidepressants and cold medicine together can lead to seizures. D) Penicillin kills infectious bacteria and beneficial bacteria in the intestine. 4) When might two drugs taken together not exert a synergistic effect? A) When the two drugs share no major or minor effects or side-effects B) When one of the drugs is microencapsulated so that it is absorbed by the body at a later time C) The synergistic effect is significant for any types of drugs taken together D) Sometimes a person's immune system is able to negate the effect of one drug, which allows the second drug to act alone. 5) What is the main tenet of the lock-and-key model for drug activity? A) The biological lock of an enzyme can be activated by using certain chemical keys. B) There is a connection between molecular structure and its biological effect. C) Only certain biological keys can unlock the potential of a drug. D) The key to a drug's success is to keep it locked away from stomach acid. 6) What role do receptor sites play in drug activity? A) The receptor site is unrelated to drug activity. B) The receptor site is the same as the active site in an enzyme. C) The receptor site removes a drug from the blood stream, which limits negative side effects D) The receptor site is the location that a drug binds to, altering the function of a biomolecule.

Answer 1

1. Common drugs are the ones that are easily manufactured and accessible by everyone.

Answer- Natural products.

2. Medicine is a drug that has therapeutic effects and gives relief from the disease which has occurred.

Answer- Therapeutic effect.

3. A synergistic effect is caused when a particular effect occurs via two or more substances working together.

Answer- Antidepressants and cold medicines can together lead to seizures.

4. In this case, one drug is microencapsulated. Therefore it only enters the system after some time once its components are released in the system.

Answer- When one of the drugs is microencapsulated so that it is absorbed by the body at a later time.

5. The theory of lock and ley hypothesis revolves around the effect of an enzyme on its substrate

Answer- The biological lock of an enzyme can be activated by some chemical keys.

6. Receptor sites are very crucial in the field of drug activity. It is where the drug binds and enters the body.

Answer- Receptor sites is the location where drug bind to, altering the function of biomolecules.

7. Plants are good sources for potential drug compounds because it is cheap and easily accessible.

Answer-Because it is far cheaper to grow chemical compounds in the plant than it is to synthesize them in the lab.

8. Chemotherapy is a technique that kills the cancer-causing tumor cells.

Answer-Cancer.

9. Chemotherapy works together in a lot of ways to fight the formation of new cancer-causing tumors besides shrinking the already present ones.

Answer- All of the above.

10. A pathogen is anything that gives rise to a disease. It can be bacterial, fungal, viral, etc.

Answer- disease-causing organism.

The first 10 MCQs are answered