Science Notes.txt

Card Set Information

Author:
Anonymous
ID:
119727
Filename:
Science Notes.txt
Updated:
2011-11-29 22:43:25
Tags:
Science Notes
Folders:

Description:
Science Notes Test
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards. What would you like to do?


  1. SPONGY LAYER
    • * the leaf layer that has many air spaces between its cells
    • *causes the underside of a leaf to have a lighter shade of green than the top side because the air spaces allow for less chlorophyll
    • *is not found in roots
  2. STOMATA
    *the tiny openings on the underside of leaves
  3. ROOT HAIRS
    *the tiny extensions in the epidermis cells of the root that help them to absorb water
  4. GUARD CELLS
    • *the pair of cells that regulate the size of the stomata
    • *plants might suffer excessive water loss if this malfunctions
  5. TRANSPIRATION
    • * when water vapor passes out of the leaf through the stomata
    • * water vapor is lost
    • *this process is most directly linked with the function of the guard cells
  6. LENTICELS
    • * tiny openings in bark that allow the exchange of gases in woody areas of plants
    • *basically aids in gas exchange
  7. ALL AFFECT WATER TRANSPORT
    • * Narrow cells of xylem
    • * transpiration
    • * osmosis
  8. PLANT HORMONES
    • *chemical that.. . .
    • *are used to
    • -kill weed
    • -control fruit ripening
    • -root cuttings
    • *auxin is a type of this
  9. GRAVITROPISM
    * a plant�s response to gravity
  10. NASTIC MOVEMENTS
    • * what makes morning glory flowers open in the morning, close in the afternoon, and open again the next morning.
    • *controls the Venus Fly Trap
  11. TROPISM
    * a plant�s growth responses of plants to their environment (such as light, gravity, etc.)
  12. PALISADE LAYER
    • *made up of tall, thin, closely packed cells
    • *located under the upper epidermis
    • *contains the most chloroplasts in a leaf
  13. PHOTOPERIODISM
    • * a plant�s growth in response to the length of time it is exposed to light
    • *the time when plants flower is determined by this
    • *chemical phytochrome is associated with it and poinsettias
  14. DAY-NEUTRAL PLANTS
    • *are not affected by the length of day
    • *bloom regardless of the length of day
  15. SUGAR, STARCH, OIL
    • *plants store energy in the form of
    • *plants might suffer excessive water loss if this malfunctions
  16. TRANSPIRATION
    • * when water vapor passes out of the leaf through the stomata
    • * water vapor is lost
    • *this process is most directly linked with the function of the guard cells
  17. MOVEMENT OF WATER
    • THROUGH A PLANT
    • * Root hair, root, xylem, stomata
  18. VASCULAR CAMBIUM
    • * helps form both xylem and phloem
    • *found between the xylem and phloem of a plant
  19. PHLOEM
    * the tissue of the plant that carries sugar from the leaf to other parts of the plant
  20. POSITIVE GRAVITROPISM
    *a plant�s roots exhibit
  21. POSITIVE PHOTOTROPISM
    *a plant�s stem and leaves turn toward light exhibit

What would you like to do?

Home > Flashcards > Print Preview