Download Algae, Fungus, etc. 3 (3) Algae- plantlike protists and are extremely

Algae, Fungus, etc. 3 (3)
Algae- plantlike protists and are extremely diverse.
Green algae- diverse, unicellular, live in either fresh or salt water.
Brown Algae- commonly called seaweeds are brown algae, gas filled sacs called bladders, allow the algae
to float upright in the water, can grow as long as 100 meters.
Robert fills a petri dish with pond water, containing a mixture of protozoans and algae. He covers half
the dish with aluminum foil and places it on a sunny windowsill. Predict what Robert might observe after
several days. More algae would be found in the uncovered half of the dish.
Fungus like fungus- also includes organisms such as mushrooms and yeast, and there are 3 types slime
molds, water molds, and downy molds.
Slime molds- the cells use pseudopods to feed and creep around, they later grow bigger and join
together to form a jelly- like mass.
A lichen is a symbiotic association between algae and fungi.
Symbiosis- close relationship in which at least one of the species benefits.
Water molds and downy molds- most are downy molds that live in water or moist places, grow as tiny
thread that look like fuzz, and they attack many food crops, such as potatoes, corn, and grapes.
Algal blooms- is the rapid of a population of algae.
True or false question: Algal blooms can occur in fresh water and salt water environments.
Which of the following is true of algal blooms? They occur when nutrients In the water increase.
Red tide- over population of saltwater algae.
True or false question: When people or other large organisms eat the shellfish, and fishes, it may lead
to severe illness or even death.
Eutrophication- is a process which nutrients, such as a nitrogen and phosphorus, build up in a lake or
pond over time, causing an increase in algae growth.
True or false question: Without oxygen, fishes and other organisms in the water die. About the only
organism that survives are the algae on the surface.
Which of the following characteristics describes all protists? Their cells have nuclei
Which of the following statements about fungus reproduction is true? Fungi reproduce by making
spores.
A protest structure that collects water and expels it from the cell is called a contractile vacuole.
Protist- are eukaryotes that cannot be classified as animals, plants, or fungi.
True or false question- fungi can range in size from tiny unicellular yeasts to large multicellular fungi. The
largest known organism on Earth is actually an underground fungus that covers an area as large as a
thousand football fields.
Fungi- are eukaryotes that have cell walls, are heterotrophs that feed by absorbing their food, and use
spores to reproduce.
Hyphae- are the branching, threadlike tubes that make up the bodies of multicellular fungi.
Mutualism- when both partners benefit from living together.
Budding- unicellular yeast cells that undergo a form of asexual reproduction.