PLANKTON LIKE PROTISTS NOTES Flashcards
What protist category do algae fall under
Plantlike protist
What are the characteristics of plantlike protists (4)
- Photosynthesizes
- Contain chlorophylls
- Comes in a variety of colors
- Are unicellular or multicellular
What are diatoms
Golden Algae
What are important facts about diatoms (2)
- They are a global source for aquatic food and O2
- They are the most numerous multicellular algae in the oceans
What are some characteristics about Diatoms (4)
- Their shells contain silica
- They have a cell wall
- They have two valves with the larger valve acting as the lid
- When they asexually reproduce , each lid produces a smaller one inside one half of the previous valve
True/False: Diatoms are used in soundproofing, filters, polishing, toothpaste, pavement, and paint sparkles
True
What are dinoflagellates
Spinning algae
In dinoflagellates, the cell is usually bounded by a protective…..
Cellulose plate
How many flagella does a dinoflagellate usually have
2
True/False: Dinoflagellates can live symbiotically with other marine organisms and can even provide their host with nutrients
True
What can dinoflagellates cause
Red Tide
What toxins do dinoflagellates produce and how can humans ingest it
Neurotoxins: By eating shellfish
True/False: Red algae is unicellular
False; Multicellular
What colored pigments do red algae’s contain and what is their scientific name
Red, Blue, Violet, and Green pigments called Phycobilin’s
How many red algae species are there
7,000
True/False: Red algae can lie in waters that are almost 200m deep
True
What do red algae’s use to attach themselves to rocks
holdfasts
True/False: Agar is a capsule for vitamins and drugs, used for dental impressions, cosmetics, culture medium, electrophoresis, and food prep
True
What is Browns algae’s scientific name
Phaeophyta
What are multicellular forms of green, red, and brown algae called
Seaweed
What keeps seaweed floating
Air bladders in tissues
What is the scientific name of green algae
Phylum Chlorophyta
What are some characteristics of Green Algae (3)
- Chlorophyll is its main photosynthesizer
- Its very versatile (it can live in many types of water)
- Comes in multicellular, unicellular, and colonial cellularity
What is a spirogyra
A type of green algae
What are the characteristics of Spirogyra (2)
- Its found in green masses on the surfaces of ponds and streams
- It has ribbon like, spiraled chloroplasts
What are the THREE forms of reproduction that spirogyra can go through
- Asexual Fragmentation
- Conjugation
- meiosis
What is Alternations of Generations
The process of two haploid gametes fusing to produce a diploid zygote which then develops into a multicellular diploid sporophyte
What is a Sporophyte
The diploid asexual phase of Alternation of Generations, where cells have two sets of chromosomes
What is a Gametophyte
The haploid sexual phase of Alterations of Generations, where cells have only one set of chromosomes
