객관식
Cohesive forces in liquid water occur when:
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- 1. Introduction to Microbiology3h 26m
- Introduction to Microbiology17m
- Introduction to Taxonomy27m
- Scientific Naming of Organisms9m
- Members of the Bacterial World10m
- Introduction to Bacteria9m
- Introduction to Archaea10m
- Introduction to Eukarya18m
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- 2. Disproving Spontaneous Generation1h 18m
- 3. Chemical Principles of Microbiology3h 35m
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- 16. Microbial Genetics4h 46m
- Introduction to Microbial Genetics11m
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- Prototrophs vs. Auxotrophs13m
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- Introduction to Conjugation6m
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- 17. Biotechnology3h 3m
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- Introduction to Viruses20m
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- 20. Adaptive Immunity7h 14m
- Introduction to Adaptive Immunity32m
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- Major Histocompatibility Complex Molecules20m
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- Antibodies14m
- Classes of Antibodies35m
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- Primary and Secondary Response of Adaptive Immunity21m
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- Regulatory T Cells10m
- Natural Killer Cells16m
- Review of Adaptive Immunity25m
- 21. Principles of Disease6h 54m
- Symbiotic Relationships12m
- The Human Microbiome46m
- Characteristics of Infectious Disease47m
- Stages of Infectious Disease Progression26m
- Koch's Postulates26m
- Molecular Koch's Postulates11m
- Bacterial Pathogenesis36m
- Introduction to Pathogenic Toxins6m
- Exotoxins Cause Damage to the Host40m
- Endotoxin Causes Damage to the Host13m
- Exotoxins vs. Endotoxin Review13m
- Immune Response Damage to the Host15m
- Introduction to Avoiding Host Defense Mechanisms5m
- 1) Hide Within Host Cells5m
- 2) Avoiding Phagocytosis31m
- 3) Surviving Inside Phagocytic Cells10m
- 4) Avoiding Complement System9m
- 5) Avoiding Antibodies25m
- Viruses Evade the Immune Response27m
- 25. Epidemiology2h 24m
- Introduction to Epidemiology37m
- Introduction to Chain of Infection5m
- Reservoirs of Infection12m
- Disease Transmission4m
- Horizontal Disease Transmission30m
- Colonization of Susceptible Host7m
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- Emerging Infectious Diseases12m
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- Epidemiological Studies8m
- 26. Applications of the Immune Response2h 9m
- 27. Immunological Disorders3h 29m
- 28. Antimicrobial Drugs3h 38m
- Introduction to Antimicrobial Drugs8m
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- Superinfections11m
- Drug Interactions: Synergism and Antagonism8m
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- Inhibitors of Cell Wall Synthesis: Beta-lactam & Penicillin36m
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- Inhibitors of Protein Synthesis11m
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- Antifungal Drugs11m
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- Tests to Guide Antimicrobial Use21m
- Antimicrobial Resistance29m
- 29. Microbial Infections - Skin and Eyes46m
- 30. Microbial Infections - Respiratory System1h 23m
- 31. Microbial Infections - Digestive System1h 10m
- 33. Microbial Infections - Nervous System2h 18m
- 34. Microbial Infections - Urogenital System1h 40m
4. Water
Properties of Water- Cohesion and Adhesion
객관식
Which of the following effects can occur because of the high surface tension of water?
A
Lakes cannot freeze solid in winter even with extremely low temperatures.
B
A spider can walk across the surface of a small pond.
C
Organisms can resist temperature changes, although they give off heat due to chemical reactions.
D
Sweat can evaporate from the skin, helping to keep people from overheating.
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검증된 단계별 안내1
Understand the concept of surface tension: Surface tension is a property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.
Identify the role of surface tension in water: Water has a high surface tension because of the hydrogen bonds between water molecules, which makes the surface layer of water molecules act like a stretched elastic membrane.
Analyze each option in the context of surface tension: Consider how surface tension might influence each scenario provided in the options.
Option A: Lakes not freezing solid is more related to water's high specific heat capacity and density properties, not surface tension.
Option B: A spider walking on water is directly related to surface tension, as the high surface tension of water supports the weight of the spider, preventing it from sinking.
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