Water

• What is the main focus of the video?

  Water as a biological molecule
• What percentage of the human body is made up of water?

  60 to 70 percent
• What type of molecule is water described as?

  Dipolar molecule
• What does the term "dipolar" refer to in water's structure?

  Uneven distribution of charge
• What charge does oxygen have in a water molecule?

  Slight negative charge
• What charge do hydrogen atoms have in a water molecule?

  Slight positive charge
• What type of bonds form between water molecules due to their charges?

  Hydrogen bonds
• What are the five properties of water discussed in the video?

  1. Metabolite
  2. Solvent
  3. High heat capacity
  4. Large latent heat of vaporization
  5. Strong cohesion
• What does it mean for water to be a metabolite?

  Involved in chemical reactions
• In which process is water used during photosynthesis?

  Photolysis
• Why is water considered a good solvent?

  It dissolves many substances
• What is the significance of water being a universal solvent for animals?

  Transports molecules in plasma
• How does water's dipolar nature contribute to its solvent properties?

  Attracts positive and negative ions
• What type of molecules do water molecules dissolve?

  Polar molecules
• What are lipids described as in relation to water?

  Hydrophobic
• What does high specific heat capacity mean for water?

  Requires much energy to change temperature
• Why is stable temperature important for organisms?

  Supports enzyme-controlled reactions
• What happens to enzymes if the temperature is too low?

  Not enough kinetic energy for reactions
• What happens to enzymes if the temperature is too high?

  Enzymes denature
• What is the large latent heat of vaporization of water?

  Requires much energy to convert to gas
• How does sweating help regulate body temperature?

  Removes heat through evaporation
• How do plants cool themselves?

  Through transpiration
• What does cohesion in water allow for in plants?

  Movement of water up the xylem
• What is the advantage of water's strong cohesion?

  Facilitates continuous water column
• What does surface tension in water provide for organisms?

  Habitat on water surface
• What are the key structural properties of water that relate to its functions?

  • Dipolar nature
  • Hydrogen bonding
  • High specific heat capacity
  • Large latent heat of vaporization
  • Cohesion