Biology Ch2 Water(10/15/24)

What does water’s high specific heat capacity help regulate in warm-blooded animals?

• Blood pressure

• Body temperature

• Oxygen levels

• Hormone balance

What happens during capillary action?

• Water molecules adhere to the walls of a thin tube and rise

• Water evaporates rapidly

• Water forms ice crystals

• Water condenses on surfaces

How does water maintain homeostasis in organisms?

• By generating pH levels

• By evenly distributing heat due to its high specific heat

• By dissolving fats

• By acting as a hydrophobic substance

What is the pH of neutral water?

• 6.0

• 7.0

• 8.0

• 9.0

What do we call a solution with a pH below 7?

• Basic

• Acidic

• Neutral

• Alkaline

Which of the following describes a base?

• Increases the concentration of hydrogen ions

• Provides hydroxide ions or other negatively charged ions

• Decreases the hydroxide ion concentration

• Has a pH below 7

What is the result of dissociation in water molecules?

• Formation of polar molecules

• Formation of ions

• Hydrogen bonds

• Covalent bonds

Which process allows water to transport dissolved minerals in plants?

• Cohesion and adhesion

• Sublimation

• Condensation

• Freezing

Which of the following is an example of a weak acid?

• Hydrochloric acid

• Sodium hydroxide

• Vinegar

• Sulfuric acid

What happens to the stomach lining due to its highly acidic environment?

• It regenerates every 7-10 days

• It is impermeable to acid

• It increases in size

• It becomes alkaline