Bot 130

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Author:
lacythecoolest
ID:
136646
Filename:
Bot 130
Updated:
2012-02-21 01:19:01
Tags:
2nd test chap 10 11 65 66 47 49 51 52 82 84
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Description:
1st set of ?'s for 2nd test Book overview
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  1. the typical foliage leaf consists of a wide, flat portion called:
    and the stalk portion:
    • the blade
    • the petiole
  2. many leaves have little leaflike structures called ______ at the base of the petiole where it joins the stem
    stipules
  3. Where the leaf joins the stem, it forms an angle btwn the petiole and the stem called:
    the axil
  4. Buds often occur in:
    axillary buds
  5. The point on the stem where a leaf is attached is called the:
    node
  6. the space along the stem btwn nodes is the:
    internode
  7. Many leaves lack petioles and are termed:
    sessile
  8. The base of the leaf is expanded out into a _______ which wraps around the stem and is sessile
    sheath
  9. Have only one blade
    simple
  10. the blade consists of two or more leaflets
    compound
  11. one of the two compound leaves where the leaflets are arranged along a central axis that is an extension of the petiole
    pinnately
  12. one of the two compound leaves where the leaflets all arise from a common point at the end of the petiole
    Palmately
  13. How can leaflets be distinguished from leaves?
    leaves have axillary buds and leaflets do not
  14. leaves possess a wide variety of patterns of _____ which contain the sylem and phloem
    veins
  15. monocots have ______ veins
    parallel
  16. Eudicots _____ veins
    netted
  17. Major veins branch off along a central vein
    Pinnately netted
  18. Veins have several major veins branching from a common point
    palmately netted
  19. 3 or more leaves at each node
    whorled
  20. tough outer layer of the leaf that helps protect the inner tissues and provieds structural support
    Epidermis
  21. Main photosynthetic tissue fo the leaf
    Mesophyll Tissue
  22. Xylem and phloem are the conducting tissues which together with other tissues form the:
    vascular bundles, or veins
  23. Plants growing in very wet environments where they are wholly or partly submerged in water are called:
    hydrophytes
  24. Plants with leaves adapted to dry habitats are:
    xerophytes
  25. Plants that require a moderately moist environment:
    mesophytes
  26. Epidermal cells secrete a waxy layer on their outer surfaces to retard water loss called:
    cuticle
  27. epidermal cells may be sqecialized to form hairs called:
    trichomes
  28. Epidermal tissue typically contain many thousands of minute pores called:
    Stomata
  29. Each stoma consists of a pore surrounded by two ____________ that contain chloroplasts
    guard cells
  30. Large cells arranged in longitudinal rows that act to fold and unfold the leaves:
    Bulliform cell
  31. The photosynthetic tissue to leaves:
    Mesophyll
  32. Mesophyll cells are ___________ cells packed with chloroplasts
    Parenchyma
  33. Mesophyll tissue layer that is columnar
    palisade
  34. Mesophyll tissue layer that is irregular
    spongy
  35. As water builds up in the guard cells, it creates ________________ which causes the guard cells to bend and open the stomatal pores
    turgor pressure
  36. Water stress causes the production of a plant hormone called:
    abscisic acid
  37. The process of when soil moisture is high and transpiration is low, water enters the roots and can be forced out the ends of veins in leaves to form droplets
    Guttation
  38. when plants drop their leaves and remain bare for some period
    abscise
  39. formed at the base of each leaf petiole
    abscission zone
  40. buds of woody plants are protected over the winter by modified leaves in the form of:
    bud scales
  41. Large, showy flowers actually have small inconspicusous flowers surrounded by colorful modified leaves called:
    bracts
  42. Autumn leaf abscission is preceded by:
    a period of senescence
  43. Leaf abscission is preceded by formation of an:
    abscission zone
  44. short, conical, underground stems surrounded by fleshy storage leaves:
    bulbs
  45. Botanical usage in any nonwoody plant
    herb
  46. movement of water across the cell membrane according to the relative concentration of dissolved substances in the watery solutions on the insides and outsides of cells
    Osmosis
  47. Dissolved materials:
    Solutes
  48. Move from an area of high concentration to a region of lower concetration
    diffusion
  49. If the concentration of solutes inside and outside a cell is the same, net water content does not change
    isotonic
  50. if the solute concentration is lower outside a cell than inside, the outside solution is:
    hypotonic
  51. membrane sacs within cells that accumulate excess water and periodically expel it from the cell
    contractile vacuoles
  52. if the concentration of solutes outside cells is higher than that inside, water will eave the cell, causing the cytoplasm to shrink
    plasmolysis
  53. The basis for osmosis
    selective membrane permeability
  54. catalysts that regulate biochemical reactions in cells
    enzymes
  55. Proteins most important function
    role as enzyme
  56. Breaking and reforming those covalent bonds into a new arrangement requires and input of energy called:
    Activation energy
  57. Enzymes are folded in such a way that they have a groove or pocket on their surface called:
    active site
  58. The processes by which living organisms capture solar energy and release it to sustain life on Earth is:
    photosynthesis and respiration
  59. Metabolism includes many kinds of chemical reaction organized into series called:
    pathways
  60. The sum of the chemical reactions that make up cellular metabolism.
    Metabolism
  61. If the potential energy of the substrates is greater than that of the products, energy is released and the process is said to be:
    Exergonic
  62. If the potential energy of the substrates is less than that of the products the reaction is
    endergonic
  63. this carries energy from the exergonic to the endergonic reaction
    ATP
  64. These reactions are highly important in cell metabolism
    Oxidation-reduction
  65. Reaction where electrons shift from one energy level to another and move from one atom to another
    oxidation-reduction reaction
  66. When an atom or molecule loses an electron:
    oxidized
  67. When a atom or molecule gains an electron
    reduction
  68. two very important electron acceptor molecules are:
    • NAD+
    • NADP+
  69. This receives electrons at one end and transfers them through a series of acceptor molecules until the electron reaches the end of the chain
    Electron transport chain

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