Please enable JavaScript.
Coggle requires JavaScript to display documents.
Algae, Nouf Al-Golaikah Lana Nassruldeen - Coggle Diagram
Algae
Green Algae
-
can be unicellular, multicellular, or colonial
-
-
-
-
-
-
-
-
Characteristics
-
They differ from plants: they do not have roots, leaves, or organs.
Many algae have chlorophyll (main photosynthetic pigment), & also have accessory pigments to help them absorb light at different wavelengths.
-
-
-
-
Diatoms
-
-
-
-
Reproduction
-
-
Sexually: they combine, there size increase
Asexually: divides it into 2 parts, there size decrease
-
-
Chrysophytes
-
-
Most are unicellular, some are colonial (-is a group of cells that join together & form a close association)
-
Red Algae
-
-
red color comes from a photosynthetic pigment, phycobilin
Phycobilin absorbs blue & violet light that penetrates deeper into the water, allowing red algae to live in deeper water than other algae.
used to thicken puddings, syrups, and shampoos
Algae
-
Uses for Algae
-
-
are high in protein and contain minerals, trace elements, and vitamins
Life Cycle
-
The haploid form of an organism, gametophyte generation.
-
-
-
-
Sporophyte cells divide with meiosis, producing n spores
-
-
Dinoflagellates
.
-
-
-
Some are autotrophic, some are heterotrophic
-
red tide
Red tides can be a serious threat to humans and the ecosystem because the dinoflagellate involved produces a toxin.
The toxin is ingested by shellfish, which are then ingested by humans.
The ecosystem is affected through reduced light penetration, toxin levels, and reduction in primary producers to the food web
-
-
Nutrient-rich ocean water and other favorable environmental conditions cause dinoflagellate populations to increase dramatically and create red tide. Human activities: agricultural or fertilizer runoff that add excess nutrients to ocean water, can contribute to red tide
has 2 flagella at right angles to one another, causing it to spin as it moves.
-
