Life Cycles
This is the alternating cycle between haploid and diploid stages
What is alternation of generations?
Plants that produce cones
What are gymnosperms?
These are the three main plant organs
What are roots, stems, and leaves?
This tissue transports water
What is xylem?
These are openings in leaves for gas exchange
What are stomata?
This generation produces spores
What is the sporophyte?
Plants that produce flowers
What are angiosperms?
This structure must balance strength and flexibility while transporting materials throughout the plant
What are roots?
This tissue transports sugars
What is phloem?
These cells control stomata
What are guard cells?
This generation produces gametes
What is the gametophyte?
This is protection and food supply for the embryo.
What are seeds?
This organ is adapted to capture light efficiently while also allowing gas exchange
What are leaves?
This type of growth increases plant height
What is primary growth?
This is the loss of water from leaves
What is transpiration?
This plant group has a dominant gametophyte
What are mosses?
These plants require water for reproduction
What are mosses?
These structures increase a plant’s ability to absorb water by dramatically increasing surface area
What are root hairs?
This type of growth increases thickness
What is secondary growth?
This leaf layer allows gas exchange
What is the spongy mesophyll?
This structure in ferns produces spores
What are sporangia?
These plants have vascular tissue but reproduce with spores
What are ferns?
This protective outer layer of woody plants also helps reduce water loss and defend against damage
What is bark?
This structure produces new cells at the tips of roots and shoots
What is the apical meristem?
This leaf layer does most photosynthesis
What is the palisade mesophyll?