Chapter 20: Coordination In Humans-Drugs Flashcards
Flashcard 1:
Q: What is a drug?
A: A substance taken into the body that modifies or affects chemical reactions in the body. This includes both legal and illegal drugs.
Flashcard 2:
Q: What are antibiotics used for?
A: Antibiotics are drugs used to kill or stop the growth of disease-causing bacteria, such as those causing tuberculosis, syphilis, gonorrhea, and pneumonia.
Flashcard 3:
Q: How do antibiotics work?
A: Antibiotics weaken the cell walls of bacteria, damage their cell surface membranes, and inhibit bacterial growth by binding to their ribosomes.
Flashcard 4:
Q: Why do antibiotics not affect viruses?
A: Antibiotics target bacterial cell structures like cell walls and membranes, which viruses lack. Viruses have a different replication mechanism and lack the structures antibiotics target.
Flashcard 5:
Q: What are the effects of excessive alcohol consumption?
A: Excessive alcohol consumption can lead to liver damage, impaired reaction time, reduced self-control, addiction, withdrawal symptoms, negative social implications, and increased risk of infections like HIV.
Flashcard 6:
Q: How does alcohol affect the body?
A: Alcohol acts as a depressant, slowing down the central nervous system. It impairs judgment, coordination, and reaction time, leading to increased risks of accidents and violent behavior.
Flashcard 7:
Q: What are the effects of heroin use?
A: Heroin is a powerful depressant drug that slows down nervous and brain activity. It increases reaction time, can lead to liver damage from contaminants, causes addiction with severe withdrawal symptoms, and has negative social implications.
Flashcard 8:
Q: How does heroin use contribute to HIV transmission?
A: Heroin use increases the risk of HIV transmission through sharing contaminated needles or engaging in unprotected sexual intercourse with infected individuals. This behavior exposes users to infected blood or body fluids.
