Chapter 6B

Cards (68)

  • Algae
    General characteristics are
    • eukaryotic

    unicellular, multicellular, filamentous,
    and some colonial


    •and mostly non-pathogenic

    •capable of oxygenic photosynthesis

    • possess photosynthetic pigments
  • Planktonic
    Algae that floats in water via flagella are called
  • benthic
    Algae that are attached to substratum and living bottom are called ________. They are also plant-like in appearance and they are dominant primary producers in many shallow lakes and
    streams.
  • light and moisture
    two characteristics that algae loves
  • Littoral zone
    Where algae normally are: near shore area;
    light penetrates
    all the way to the
    sediment
  • thin and rigid
    Descriptions of algae's cell wall which contains the following:
    cellulose, mannan. alginic acid, chitin, xylan, galactans, CaCO3, silica, flucoidin
  • pyrenoids
    Site of CO2
    fixation, starch
    formation
  • Plastids
    Part of the algae that carries photosynthetic pigments, pyrenoids, and eyespot or stigma
  • Chlamydomonas
    a genus of unicellular photosynthetic flagellates, is an important model for
    studies of such fundamental processes as photosynthesis, motility, responses to stimuli such as
    light, and cell-cell recognition.
  • Chlorophyll, carotenoids, phycobilins
    Pigments found in algae
  • Chlorophyll
    green photosynthetic pigment found in plants, algae, and cyanobacteria
  • Carotene
    orange photosynthetic pigment important for photosynthesis. It contributes to photosynthesis by transmitting the light energy it absorbs to chlorophyll
  • phycobilins
    Are especially efficient at absorbing red, orange, yellow and green light,
    wavelengths which are not well absorbed by chlorophyll a.
  • Phycoerythrobilin
    red
  • Phycourobilin
    orange
  • Phycoviolobilin
    violet
  • Phycocyanobilin or phycobiliverdin
    blue
  • yellow/red phycobilins
    Organisms growing in shallow waters
    tend to contain ________
  • green phycobilin
    Organisms growing at greater depth often contain more of __________
  • Flagella
    locomotive organelle used by algae which moves the cell through an aqueous environment the
    flagellar apparatus reacts to the mechanical, chemical, gravitational and light stimulation of the cell.

    It also plays an important role during sexual fusion of isogamous, anisogamous and
    oogamous species of green algae.
  • Binary fission and fragmentation
    Asexual reproduction types of algae
  • Conjugation
    Sexual reproduction processes of algae
  • Antheridia
    Male structure of algae that produces sperm
  • Oogonia
    Female structure of algae that forms the eggs
  • isogamy, heterogamy, oogamy
    Sexual reproduction processes of algae
  • isogamy
    happen if the sexual cells, or gametes, are of the same form and size and are usually indistinguishable from each other
  • heterogamy
    state or condition in which
    conjugating gametes are dissimilar in structure and size as well as in function
  • oogamy
    when
    the gametes also have different mobility (non-motile female and motile male)
  • Phytoplankton
    are primary producer for organism in aquatic ecosystem
  • 70%
    Algae (phytoplankton) is responsible for
    the production of approximately _______ of the oxygen and organic matter in aquatic
    environments.
  • Chlorella
    Important source of food and food supplement that improve the
    nutritional quality of a daily diet; single-cell protein
  • Caulerpa lentillifera
    Species of green algae from coastal regions in the Indo-
    Pacific. This seaweed is one of the favored species of edible Caulerpa due to its soft and
    succulent texture.
  • lato or arosep
    Local name of caulerpa
  • Palmaria palmata
    Grows on north-facing cliffs and shady crevices.
    The blood red plants is rich
    in potassium, iron, iodine and trace elements and all kinds of Vitamins.
  • Dulse
    other name for Palmaria palmata
  • Poryphyra
    Specie of red alga that is cultivated in japan, china, and korea as seaweed known as nori or zicai
  • Gracilaria and Gelidium
    Are genera of red algae (Rhodophyta) notable for its economic
    importance as an agarophyte
  • True
    True or false: Algae are source of agar, agarose, and carrageenan which are solidifying agents used in
    laboratories and in food production
  • Archaeplastida
    Kingdom of algae
  • polysiphonia, cyanidium and galdiera
    Genera of rodophytes