BI 112 Exercise 19 Lab
The simplest forms of life on the planet are ___, ____, and ____
bacteria, archaea, protists
How is a prokaryotic organism characterized?
DNA is free in the cytoplasm, unbounded by a membrane-they lack organelles
Describe the charateristics of a eukaryotic organism.
Genetic material contained within the nucleus and many of their cellular components are compartmentalized.
Describe the ecological importance of bacteria and unicellular protists.
They are the base of the food chain.
The kingdom of bacteria consists of _____and _____
What is a pathogen?
some bacteria, most decomposers
Bacteria are considered to be ____because they break down and recycle the waste products of life.
Bacteria that capture the gaseous nitrogen in the atmosphere and make it available to plants are sometimes called ____
The ___is a special staining procedure that is used to help identify bacteria.
_____are substances that inhibit the growth of bacteria
Why are the bacterial colonies growing on the surface of the nutrient agar in the petri dish called heterotrophic?
They are said to cause diseases. They are dependent upon an outside source for nutrition.
What is a major difference between the cyanobacteria and the heterotrophic bacteria?
Cyanobacteria are photosynthetic
How do the cells of Oscillatoria differ from the cells of the heterotrophic bacteria that you studied?
They are green which means they are photosynthetic
Domain ______, Kingdom Protista
The protistans are both green (--), and non-green(--) and previously have been classified as ____, ____, and ____
fungi, animals, plants
Phylum Euglenozoa-____, ____
Phylum Alveolata-___, ___, ___
ciliated protozoans, dinoflagellates, apicomplexans
Oomycotes: Water molds(fungusl like protests)
Doe Trypansoma brucei live inside a cell or out in the plasma of the blood?
in the plasma
The ___________transmits Trypansoma brucei(a parasit) from one person(host) to another is considered to be a vector for this parasite.
_________ is the name of the human disease caused by Trypansoma brucei
T/F-Most euglenoids are heterophic.
T/F-Euglenoids are unicellular and motile.
The ____ is composed of flexible helical proteinaceous strips with the cell membrane and gives flexibility to the euglenoids.
The members of this phylum are characterized by having one or more___to provide motility.
All members of the phylum alveolata have numerouse, short locomotory structures called _____
The ________ that are produced by the dinoflagellates of red tides poison the fish that feed on them.
All apicomplexans are ___infecting a wide range of animals
___is a human disease that is caused by a species of apicomplexan
In what other human organ do the malarial apicomplexans infect cells, reproduce asexually, and greatly increase their numbers?
When the malarial apicomplexans eventually emerge from the ruptured RBCs and release their metabolic wastes it leads to disease symptoms such as ___, ____, ___
fever, chills, and shaking
The vector for malaria is ______
All water molds rely on the presence of water to spread their ___
Water mold eggs are contained in sturctures called ___
sperm nuclei are contained in ___
The sex organ itself is called the ____
The zoosporangia are specialized for _____reproduction, whereas, the antheridia and oogonia are specialized for ____ reporduction.
The term ___indicates that male and femal sex organs are part of the same individual, whereas, the term ____indicates the male and femal sex organs are a part of separte bodies or individuals.
Phylum-Alveolata(Ciliated Protozoans, Dinoflagellates, Apicomplexans)