Plant Interactive Reader Key

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Plant Interactive Reader Key
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20.1 Interactive reader

• P. 332 photosynthetic, same type chlorophyll,
  starch to store food for later use, cell walls w/
  cellulose
• P.333 cuticle, stomata, seeds to keep plants/seed
  from drying out
• Cuticle 2. pollen grain 3. vascular system
  4. lignin 5. Plants share many same
  characteristics of simpler green algae
• 6. to spread pollen to other plants

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20.2 Interactive reader

• P. 335 grow close to ground dont have vascular
  system
• P.336 they do not have true roots and leaves
• P.337 (1) can reproduce w/o free-standing water
  (2) nourish and protect plant embryos (3) allow
  plants to disperse in new ways
• Cone 2. fruit 3. angiosperm 4. pollination
• 5. They dont have a vascular system. 6. So
  pollen can be carried by wind or on body of an
  animal.
• 7. Endosperm is food for embryo outside seed is
  protective coat.

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22.1 Plant Life Cycle

• P.369 seed plants produce 2 types of spores
  develop into male and female gametophytes (egg
  and pollen) and are microscopic.
• 1. alternation of generations
• 2. sporophyte
• 3. gametophyte
• 4. Because the spore is the beginning of the
  haploid stage and already has 1n.
• 5. Spores are released in air and grow when
  suitable soil is found.
• 6. sporophyte.

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21.1

• 1. sclerenchyma cells
• 2. vascular tissue
• 3. panenchyma
• 4. ground tissue
• 5. vascular tissue, ground tissue, dermal
• 6. OMIT

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22.3

• P.353 primary-stems grow taller/roots longer
• Secondary- woody plants, wider
• Meristem 2. taproot 3. rootcap 4.secondary 5.root
  hairs
• 6. Increase concentration of nutrients in roots
  causes H2O move into root tip by osmosis
• 7. Amount of rainfall or fire

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21.4

• P.356 leaf type, leaf veins, left margin
• 1. petiole 2. mesophyll 3. blade
• 4. guard cells 5. OMIT 6. water (transpiration)
  and gas exchange (CO2 O2)
• 7. Desert to protect against water loss.

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22.2 Reproduction in Flowering plants

• P.364 attract animal pollinators
• P365 animal pollination more direct and efficient
  than wind pollination.
• P.367 1 sperm 1 egg plant embryo rest of
  sperm polar nuclei endosperm
• 1. stamen 2. endosperm 3. carpel
• 4. Sepal 5. pollen tube ?anther ?stigma?egg
• 6. Flowering plants only use energy to make food
  supply if egg is fertilized. So in flowers energy
  is not wasted if eggs not fertilized.

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22.3 Seed dispersal and germination

• P.368 fruits help disperse seeds
• 1. dormancy 2. germination
• 3. tasty fruits eaten and dispersed in fecal
  matter sticky fruits like burrs ride on body
  of animal traveling fruit in air or on water
• 4. Water stimulated plant embryo to grow and
  break out of the seed at germination.

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22.4 Asexual reproduction

• P. 371 regeneration (broken off) vegetative
  reproduction (still attached)
• Vegetative reproduction 2. Regeneration
• 3. To grow plants with special traits like
  seedless fruits (think seedless oranges)
  cuttings are quick and doesnt cost much.
• 4. Asexual reproduction allows a well-adapted
  plant to make many copies of itself.
• 5. They are both modified stems. Horizontal
  underground stems are rhizomes. Underground
  modified stem for food storage are tubers.