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5 Written questions

5 Matching questions

  1. root tip zones
  2. capillary action
  3. Characteristics of fungi
  4. Monocot characteristics
  5. Genetically modified plants
  1. a - the tendency of liquid to rise inside a narrow tube; xylem´âánarrow, capillary-type tubes, strong attraction between water and the cell walls; several centimeters.
  2. b An organism that has acquired one or more genes by artificial means. If the gene is from another species, the organism is also known as a transgenic organism; little genetic variability; monocultures; wiped out by one disease.
  3. c heterotrophic eukaryotes; digest food externally and absorb the nutrients; found everywhere (soil and water); mostly decomposers, some parasitic
  4. d zone of cell division, zone of elongation, and the zone of maturation.
  5. e - A flowering plant whose embryos have a single seed leaf, or cotyledon; parallel veins; vascular bundles are scattered; petals in multiples of 3; fibrous root system.

5 Multiple choice questions

  1. root cells elongate, sometimes to more than ten times their original length; it is cell elongation that pushes the root tip farther into the soil; the cells lengthen, rather than expand equally in all directions, because of the circular arrangement of cellulose fibers in parallel bands in their cell walls. The cells elongate by taking up water and the cellulose fibers separate
  2. An internal timekeeper that controls an organism's biological rhythms; marks time with or without environmental cues, but often requires signals from the environment to remain tuned to an appropriate period.
  3. A pollen-producing male reproductive part of a flower, consisting of a filament and an anther.
  4. - In the center of trees, the darkened, older layers of secondary xylem made up of cells that no longer transport water and are clogged with resins.
  5. in combination with auxin, gibberellins are used to produce seedless; sprayed on on other kinds of plants, at an earlier stage, gibberellins can have the opposite effect.

5 True/False questions

  1. Structure ovules develop intoanthers

          

  2. Auxin effect on the tip of shootscofactors, catalysts

          

  3. Kinds of tropism1. Phototropism- Light
    a. Stems-positive
    b. Roots- negative
    2. Gravitropism- gravity
    Stems-negative
    Roots-positive
    3. Thigmotropism- touch
    4. Hydrotropism- water
    5. Chemotropism- chemicals

          

  4. mycorrhizaplant roots + fungus= symbiotic relationship; mutually beneficial associations of plant roots and fungi, are common and may have helped the first plants adapt to land

          

  5. myceliumfungal infection

          

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