Which statement is true about the macronucleus and micronucleus of ciliates? Micronuclei transmit genetic information through mitosis and meiosiswhile the macronucleus maintains normal cellular functions.

What is the function of the macronucleus and one or more small micronuclei in the paramecia quizlet?

What is the function of the macronucleus and one or more small micronuclei in Paramecia? A sort of. For conjugation propagation, the micronucleus is always (1n)general cell-encoded macronuclear functions, and the two are otherwise unrelated.

Where are the slime molds most likely to be found?

They feed on microorganisms that live in any type of dead plant material. They aid in the breakdown of dead vegetation and feed on bacteria, yeast and fungi.For this reason, slime molds usually appear in Soil, lawn and forest floors, usually on deciduous logs.

What conditions would cause the release of cAMP from the D. dictyosum quizlet?

What is the result of the release of cAMP by Dictyostelium discoideum? Cells aggregate to form a large mobile multicellular slug that serves as a precursor to fruiting body development.

Which of the following types of vacuoles are present in protists?

Protists use shrink bubble To remove excess water from cells, they are primarily freshwater organisms; some marine, soil microbes, and parasites also have retractable vacuoles.

macronucleus and micronuclei are characterized

15 related questions found

What is the nutritional mode of protists?

The main mode of nutrition for protists is Autotrophic (involves plastids, photosynthesis, and organisms making their own nutrients from the environment) and heterotrophy (absorbing nutrients).

What are the 5 characteristics of protists?

characteristics of protists

• They are eukaryotic, which means they have a nucleus.
• Most have mitochondria.
• They may be parasites.
• They both prefer aquatic or moist environments.

Which fungi are responsible for the decline of amphibians worldwide?

Amphibian chytridiomycosis, a disease affecting amphibians, especially frogs, is caused by Fungus Batrachochytrium dendrobatidisB. dendrobatidis, known among herpetologists as the Amphibian chytrid or Bd for short, has been associated with the extinction or population decline of many amphibians around the world.

Which of the following groups is responsible for the toxic red tide test?

Diatoms cannot move in water, but have developed adaptations to keep them afloat. dinoflagellate They can swim due to their long flagella; they are also bioluminescent and are sometimes responsible for red tides.

Are all photosynthetic protists algae?

plant-like protists All photosynthetic protists known as algae account for more than 80 percent of the carbon dioxide fixed in the biosphere. This plant-like protist is abundant in freshwater and seawater. All plants – like protists called algae.

Why are slime molds colorful?

We define slime mold identification color, if it responds to color through unique changes in amplitude and period of oscillatory activity. In laboratory experiments, we found that slime molds can recognize red and blue.

How are slime molds classified?

slime mold Kingdom Protista (Protista), although it has been classified as a fungus for many years, belongs to the class Myxomycetes. … Myxomycota is a true (Plasmodium) slime mold, while Acrasiomycota is a cellular slime mold.

Why does slime mold love oats?

These results have been published on the Arxiv repository. However, it was in this experiment that he discovered the preferred attractive source of slime molds.Traditionally, oats and honey Use as a food source to attract slime mold for these types of experiments.

What is the role of the macronucleus and one or more small micronuclei of Paramecia?

Large nucleus is The center of all metabolic activity in an organism. Micronuclei are storage sites for the germline genetic material of an organism. It produces a large nucleus and is responsible for the genetic recombination that occurs during conjugation (cross-fertilization).

What is the role of the Big Nucleus quiz?

The macronucleus is the larger of the two types of nuclei in ciliate protozoa.it Controls all cellular functions except reproduction. Micronuclei are smaller and control reproductive function. You just finished 16 semesters!

How do protists reproduce?

Protists reproduce through a variety of mechanisms.Most undergo some form of asexual reproduction, such as binary split, producing two daughter cells. In protists, binary fission can be divided into transverse or longitudinal, depending on the orientation axis; paramecia sometimes exhibit this approach.

What do all protozoa have in common?

Protozoa, organisms, usually unicellular and heterotrophic (using organic carbon as an energy source), belonging to any major lineage of protists, and like most protists, usually microscopic.All protozoa are eukaryotes, therefore Has a « true » or membrane-bound nucleus.

Which of the following would cause a red tide test?

Red tide is caused by Algal bloom– During this time, the algae grows so much it can run out of oxygen and release toxins into the air. Different species in the water can cause discoloration.

Which phytoplankton are responsible for red tides?

Red tides are caused by microorganisms in plankton, drifting or weakly swimming marine organisms, which are the basis of the marine food chain. Specifically, dinoflagellateIt is a microscopic marine creature with two elongated appendages that is responsible for red tides.

What is the role of fungi in an ecosystem in general?

Abstract. Fungi play a vital role in the biosphere.they are Essential for nutrient cycling in all terrestrial habitats Because they are the main decomposers of the complex components of plant debris, such as cellulose and lignin.

What are the factors affecting amphibian populations now?

There is no simple explanation for the decline and decline in global amphibian populations, but several reasons are involved, including: Habitat loss/alteration; Human use; Alien/invasive species; Environmental acidification caused by acid precipitation; Environmental pollution by chemical fertilizers,…

Which amphibians went extinct?

extinct species

• Vogel Atropes.
• Corquin robber frog (Craugastor anciano)
• Sierra de Omoa Creekside Frog (Craugastor omoaensis)
• Golden Toad (Incilius periglenes)
• Vegas Valley Leopard Frog (Lithobates Fisheri)
• Gunther’s Streamlined Frog (Nannophrys guentheri)
• Thorn-knee Frog (Phrynomedusa fimbriata)

What are the 3 characteristics of plant-like protists?

characteristics of plant-like protists

• Eukaryotes.
• There are unicellular (yarn/ribbon form) and some are multicellular (sheets).
• It has chlorophyll, so it is autotrophic. …
• Algae/algal bodies are indistinguishable from roots, stems and leaves.

What do protists look like?

The cells of protists are the most delicate of all cells.Most protists are Micro and single cells, but some truly multicellular forms exist. …and some protists consist of giant multinucleated single cells that look like amorphous mucus masses, or in other cases, like ferns.

What are primary cells?

Protists are collections of various organisms.Although there are exceptions, they are mainly Micro and single cells, or consists of a single cell. The cells of protists are highly organized, with nuclei and specialized cellular machinery called organelles.