Regulations of body fluids

• cytoplasm osmolarity - Plant cells rely on vacuoles to regulate
• Mesophytes - Plants that live in hydrated soil
• cuticle - waxy outer coating
• xerophytes - Plants that live in dry habitats
• Halophytes - Plants that live in salty environments
• osmosis - Some species store salts in their roots so the low water potential will draw the solvent in via
• Levaes - Salt may be excreted onto (. )to trap water molecules for absorption by leaf cells
• Excretory system - Animals utilize an (. ) to control the amount of water that is lost to the environment and maintain osmotic pressure.
• Protein metabolism - also

  generates waste molecules

  re which could disrupt osmotic

  pressure.
• osmoconformers - Marine invertebrates with body fluids that are generally hyperosmotic to their surroundings are called (. ) because they allow the osmolarity of their body fluids to match that of the environment.
• osmoregulators - Marine vertebrates,

  birds and mammals, on the other hand are (. ),

  not because they keep the

  osmolarity of body fluids different

  e by from their environment.