BI 112 Exercise 19 Lab

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1

The simplest forms of life on the planet are ___, ____, and ____

bacteria, archaea, protists

2

How is a prokaryotic organism characterized?

DNA is free in the cytoplasm, unbounded by a membrane-they lack organelles

3

Describe the charateristics of a eukaryotic organism.

Genetic material contained within the nucleus and many of their cellular components are compartmentalized.

4

Describe the ecological importance of bacteria and unicellular protists.

They are the base of the food chain.

5

The kingdom of bacteria consists of _____and _____

bacteria, cyarrobacteria

6

What is a pathogen?

some bacteria, most decomposers

7

Bacteria are considered to be ____because they break down and recycle the waste products of life.

...

8

Bacteria that capture the gaseous nitrogen in the atmosphere and make it available to plants are sometimes called ____

...

9

The ___is a special staining procedure that is used to help identify bacteria.

gram station

10

_____are substances that inhibit the growth of bacteria

Antibiotics

11

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.

12

What is a major difference between the cyanobacteria and the heterotrophic bacteria?

Cyanobacteria are photosynthetic

13

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

14

Domain ______, Kingdom Protista

Eukarya

15

The protistans are both green (--), and non-green(--) and previously have been classified as ____, ____, and ____

fungi, animals, plants

16

Phylum Euglenozoa-____, ____

Trypanosoma, Euglenoids

17

Phylum Alveolata-___, ___, ___

ciliated protozoans, dinoflagellates, apicomplexans

18

Phylum Stramenopila-_____

Oomycotes: Water molds(fungusl like protests)

19

Doe Trypansoma brucei live inside a cell or out in the plasma of the blood?

in the plasma

20

The ___________transmits Trypansoma brucei(a parasit) from one person(host) to another is considered to be a vector for this parasite.

tsetse fly

21

_________ is the name of the human disease caused by Trypansoma brucei

...

22

T/F-Most euglenoids are heterophic.

F

23

T/F-Euglenoids are unicellular and motile.

T

24

The ____ is composed of flexible helical proteinaceous strips with the cell membrane and gives flexibility to the euglenoids.

euglena

25

The members of this phylum are characterized by having one or more___to provide motility.

...

26

All members of the phylum alveolata have numerouse, short locomotory structures called _____

cilia

27

The ________ that are produced by the dinoflagellates of red tides poison the fish that feed on them.

neurotoxins

28

All apicomplexans are ___infecting a wide range of animals

parasites

29

___is a human disease that is caused by a species of apicomplexan

Malaria

30

In what other human organ do the malarial apicomplexans infect cells, reproduce asexually, and greatly increase their numbers?

liver

31

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

32

The vector for malaria is ______

mosquito

33

All water molds rely on the presence of water to spread their ___

asexual spores

34

Water mold eggs are contained in sturctures called ___

oogonia

35

sperm nuclei are contained in ___

antheridia

36

The sex organ itself is called the ____

gametangia

37

The zoosporangia are specialized for _____reproduction, whereas, the antheridia and oogonia are specialized for ____ reporduction.

asexual, sexual

38

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.

...

39

Domain-Bacteria

Kingdom-Bacteria

...

40

Domain-Eukarya

Kingdon-Protista

Phylum-Euglenozoa(Trypanosoma, Euglenoids,

Phylum-Alveolata(Ciliated Protozoans, Dinoflagellates, Apicomplexans)

Phylum-Stramenopila(Oomycotes,

...