Unit5 Biology

Question 1

Scientists think that archaea could exist on___________

Answer 1

Mars

Question 2

An obligate________is an organism that must live in an environment that does not contain oxygen

Answer 2

Anaerobe

Question 3

Answer true or false

Eubacteria are the true bacteria

Answer 3

True

Question 4

Sexual reproduction in Bacteria is called________

Answer 4

Conjugation

Question 5

Examples of three illnesses caused by harmful bacteria are ____________, ___________,&__________

Answer 5

Pneumonia
Strep throat
Ear infections

Question 6

Cyanobacteria is a special type of bacteria that performs______________

Answer 6

Photosynthesis

Question 7

Psychrophile means a __________ microorganism

Answer 7

Cold-loving

Question 8

A(n)_________ is a reproductive cell that can produce new organisms without fertilization

Answer 8

Spore

Question 9

Answer true or false

An endospore is a protective protein coat that bacteria can come form when conditions become harsh

Answer 9

True

Question 10

Psychrophiles can be found in ______________

Answer 10

Glaciers

Question 11

Asexual reproduction during which a bacterium clones itself & splits into two genetically identical organisms is called binary _________

Answer 11

Fission

Question 12

Halophiles live in areas of ___________ salt concentration

Answer 12

High

Question 13

An obligate __________ is an organism that must live in an environment that contains oxygen

Answer 13

Aerobe

Question 14

__________are the source of most of the worlds natural gas

Answer 14

Methanogens

Question 15

What are the three shapes of bacteria

Answer 15

Round
Spiral
Rod-shaped

Question 16

Which of the following is NOT a way to pass HIV virus from person to person?

Answer 16

By sharing glasses,forks,spoons,or other utensils

Question 17

AIDS(the disease caused by HIV) is responsible for killing _______people since 1981

Answer 17

30 million

Question 18

HIV targets the body’s _________system

Answer 18

Immune

Question 19

The________cycle is used by a virus to destroy the host cell to reproduce the virus

Answer 19

Lytic

Question 20

A parasite is an organism that requires another organism to _________&__________most often to the harm of the host organism

Answer 20

Reproduce

Function

Question 21

__________is an example of a retrovirus

Answer 21

HIV

Question 22

What is an infective agent that typically consists of a nucleus acid molecule in a protein coat

Answer 22

Virus

Question 23

A person is considered to have AIDS when the T-helper count drops below _______cells per one milliliter of blood

Answer 23

200,000

Question 24

All viruses reproduce with the _______ cycle

Answer 24

Lytic

Question 25

Some viruses use a _______ cycle before beginning the lytic cycle in which the viral DNA is inserted into the hosts DNA

Answer 25

Lysogenic

Question 26

The average length of time that passes between a person being infected with HIV to having AIDS is_________

Answer 26

10-15 years

Question 27

Every virus is made up of these two things:____________

Answer 27

Protein coat and nucleic acid

Question 28

Answer true or false Finding a cure for AIDS has been so difficult Because the HIV virus mutates fairly easy

Answer 28

True

Question 29

A(n) _______ is a weakened or dead version of an infectious agent such as a virus, resulting in a persons body forming antibodies that destroy the infectious agent when they encounter it, thereby bestowing immunity upon the person

Answer 29

Vaccine

Question 30

Why is targeting T-helper cells so damaging to humans? The fewer of these helper cells there are, the less ability the _______system has to fight off infection

Answer 30

Immune

Question 31

______are the feet-like structures of amoebas

Answer 31

Pseudopodia

Question 32

Answer true or false Penicillin is an example of deuteromycota

Answer 32

True

Question 33

What are three things yeasts are used for?

Answer 33

Used in making beer or wine Used in baking bread Used in the genetic engineering of vaccines

Question 34

Answer true or false Fungi are placed into the four different phyla based on the way they produce spores during asexual reproduction

Answer 34

True

Question 35

Protists are organisms with _________cells that are not plants, animals, or fungi

Answer 35

Eukaryotic

Question 36

______________can use red tides and have bioluminescence

Answer 36

Dinoflagellates

Question 37

What is a fungus?

Answer 37

It is an organism that obtains its energy from dead,decaying organic matter.

Question 38

A_________is a unicellular or multicultural organism that is heterotropic; feeding off dead organic matter or parasite, feeding off living organisms; reproduces through spores

Answer 38

Fungus

Question 39

The multicellular algae are the ____________,_____________, and __________

Answer 39

Brown algae Green algae Red algae

Question 40

What is the name of the dividing walls or membranes in the hyphae of a fungus?

Answer 40

Septa

Question 41

Answer true or false The majority of fungi reproduce asexually through spores

Answer 41

True

Question 42

Which of the following are NOT examples of items in which you find diatoms in your everyday life?

Answer 42

Cutlery Pencil Glass

Question 43

___________ are plant like protists that perform photosynthesis

Answer 43

Algae

Question 44

Ascomycota encompasses the following fungi:

Answer 44

Yeasts,truffles,&morels

Question 45

A vector is an organism that can carry a parasite,and is responsible for__________other organisms (host) with that parasite

Answer 45

Infecting

Question 46

What is the basic structure unit for a fungus called?

Answer 46

Hyphae

Question 47

Three examples of basidiomycotes are:

Answer 47

Mushrooms Bracket fungi Puffballs

Question 48

In their cell walls,fungi have___________instead of cellulose like plants cell walls

Answer 48

Chitin

Question 49

Fungus-like protists get their energy through ___________

Answer 49

Extracellular digestion

Question 50

Zygomycota encompasses the following fungi:________

Answer 50

Various fruit molds and black bread molds

Question 51

_____________is a network of hyphae that form part of a fungus

Answer 51

Mycelium

Question 52

A lichen is a combination of which two types of organisms?

Answer 52

Fungus and algae