ORGAN SYSTEM OF PLANTS

Cards (41)

  • Absorption - takes place in the root hair
  • Root hair - also absorb ions or mineral salts from the soil
    • As water moves from the soil into root hair cells by osmosis, pressure inside these cells build.
  • XYLEM - carry water and dissolved materials up from the roots
  • PHLOEM - carry food and glucose from the leaves to all the other parts of the plant, including the roots
  • When total water potential is lower outside, the plant wilts
  • SYMPLAST
    • sym - means same/shared
  • SYMPLAST - Shared cytoplasm
  • SYMPLAST
    • Shared Cytoplasm
    • Water and minerals move through plasmodesmata
  • PLASMODESMATA - cell wall chanels that allow response to systemic signaling.
  • APOPLAST - Outside of the cell
  • APOPLAST
    • Water travels through the porous cell walls.
    • Outside of the cell
  • a - means "outside of"
  • PERFECT FLOWER - has both male and female reproductive organs
  • IMPERFECT FLOWER - Has either male or female reproductive organs, but not both
  • PETALS - most obvious parts, brightly colored for pollination
  • PETALS - modified leaves, provide a platform for insects to land
  • RECEPTACLE - Enlarged end of the flower
  • Stamen - male part of the flower
  • Anther - pollen sac with pollen grains, produces pollen grains.
  • Filament - holds the anther to disperse pollen
  • Pollen Grains - contains 2 haploid cells, combine through meiosis
  • Carpels - also known as pistil, the female part of the flower.
  • Stigma - swollen structure at the end of the style; receives the pollen
  • Style - stalk that connects stigma to ovary, pathway for pollen
  • Ovule - structure that will develop into a seed, ovum is haploid
  • Ovule - attatched to a placenta by the funicle
  • Funiculus - equivalent to umbilical cord
  • Placenta - provides connection into the ovary walls, provides nutrients to developing embryo
  • SEPALS - modified leaves which enclose
  • ORGANS OF FLOWERING PLANTS:
    1. Petals
    2. Stamen
    3. Carpels
    4. Sepals
    5. Receptacle
  • MALE ORGANS OF FLOWERS:
    1. Anther
    2. Filament
  • FEMALE ORGANS OF FLOWER: (Carpels)
    1. Stigma
    2. Style
    3. Ovary
    4. Ovule
    5. Funiculus
    6. Placenta
  • When total water potential is higher outside, the plant is kept erect.
  • Pathways of water and mineral movement in the roots:
    1. Symplast
    2. Apoplast
  • Stigma - receives the pollen grains
  • Ovary - structure that will develop into a fruit after fertilization.
  • ovary - produces and protects one or more ovules
  • Style - holds the stigma in a suitable position to trap pollen grains
  • The mature stigma secretes a sugary fuluid that stimulates the pollen grains to germiniate.