Study

Plants!

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  • What are the two major types of vessels in the vascular system of plants?
    Xylem and phloem
  • What are the three categories of vascular plants?
    Seedless vascular plants, gymnosperms, and angiosperms
  • True or false: All plants want lots of light and water
    False!
  • What type of trees have specialized roots for waterlogged soils with low oxygen and high salt concentrations?
    Mangrove trees!
  • What can carnivorous plants do?
    They can supplement nitrogen by digesting insects
  • What makes angiosperms different from gymnosperms?
    Angiosperms are flowering plants!
  • What is the function of xylem?
    The xylem carries water upwards from the roots to the leaves
  • What is an informal term for nonvascular plants?
    Bryophytes
  • How many estimated plant species exist?
    Over 300,000
  • What are the three phyla of nonvascular plants?
    Liverworts, hornworts, and mosses
  • What percentage of plants do angiosperms represent?
    90% of all plants!
  • What do guard cells do?
    Determine whether a stomata should be open or closed
  • What are the two subcategories of angiosperms?
    Monocots and eudicots
  • What is the name for the openings on leaves that allow for gas exchange?
    Stomata
  • What are the two general plant categories?
    Vascular and nonvascular plants
  • Why do plants close their stomata at night?
    To conserve water!
  • What does "gymnosperm" mean?
    Gymnosperm means naked seed
  • Why might leaf structures vary based on a plants environment?
    Because of differences in water availability and sunlight exposure
  • What is the function of the phloem?
    Phloem carries sugar from the leaves to the roots