Midterm

Question 1

Bacteria and archea are the only organisms characterized as

Answer 1

Prokaryotic

Question 2

Bacteria can be classified according to their

Answer 2

Type of cell walls, methods of obtaining energy, gram stain

Question 3

When tested with gram stain, gram positive are…

Answer 3

Purple

Question 4

Bacteria lack a true nucleus and membrane bound organelles therefore they are classified as

Answer 4

Prokaryotes

Question 5

One difference between human body cells and bacterial cells is that bacterial cells have

Answer 5

A cell wall made of peptidoglyn

Question 6

Structures found in a eukaryotic cell but not in a bacterial cell

Answer 6

Cell nuclei, multiple chromosomes, membrane bound organelles

Question 7

Found In cytoplasm of bacterial cell

Answer 7

None of above

Question 8

Bacterial cells

Answer 8

Have cell membrane and wall

Question 9

E. coli and other bacteria have in common with eukaryotes

Answer 9

DNA

Question 10

Bacterial endpapers

Answer 10

Allow certain species to survive harsh conditions

Question 11

Used at least by some bacteria for movement

Answer 11

Flagella

Question 12

Conditions unsuitable for bacteria to grow

Answer 12

None of the above

Question 13

Prokaryotes transfer pieces of genetic info by a process called

Answer 13

Conjugation

Question 14

A pathogen is an agent that is

Answer 14

Harmful to living organisms

Question 15

Food not a product of fermentation

Answer 15

Milk

Question 16

Antibiotics

Answer 16

Include penicillin and tetracycline, prevent bacteria from making new cell walls, effective treatment for bacterial disease

Question 17

Not habitat of archea

Answer 17

Human skin

Question 18

Not a way of preventing food borne illness at home

Answer 18

Washing kitchen utinsils thouroughly in cold water

Question 19

Viruses are considered non living because

Answer 19

Cannot: reproduce by themselves nor carry out metabolism

Not made up of cells

Question 20

Study of viruses is part of biology bc

Answer 20

They are active inside living cells

Question 21

Biologists know that viruses

Answer 21

Contain RNA or DNA In a protein or lipid coat

Question 22

The capsid of a virus is the

Answer 22

Protective outer coat

Question 23

All viruses have

Answer 23

None of the above

Question 24

Tobacco mosaic virus

Answer 24

Able to be crystallized,causes disease in tobacco plants, smaller than bacterium.

Question 25

Scientists first began to study viruses because

Answer 25

Couldn't be seen but caused disease

Question 26

Viruses that use reverse transcriptase.....called

Answer 26

Retrovirus

Question 27

Contains RNA only

Answer 27

Viroid

Question 28

Unlike viruses, prions

Answer 28

Composed only of protein

Question 29

Typical virus consists of

Answer 29

A protein coat and a nucleus acid core

Question 30

Viruses

Answer 30

Reproduce only in living cells

Question 31

Animal viruses often infect only specific host cells because

Answer 31

The host cell must have specific receptors for proteins on the virus surface

Question 32

Cephalization

Answer 32

Is characterized by the concentration of sensory and brain structures in the anterior end

Question 33

Raidial symmetry?

Answer 33

Cnidarian

Question 34

Symmetrical phyla doesn't include

Answer 34

Sponges

Question 35

Butterfly

Answer 35

Bilaterally symmetry

Question 36

Lichens are important to the environment because

Answer 36

Contribute to soil

Question 37

Industrial use of fungi

Answer 37

All above

Question 38

Industrially important

Answer 38

All above

Question 39

Not a good that requires fungi

Answer 39

Milk

Question 40

Not a way fungi can harm humans

Answer 40

Transmitting viral disease

Question 41

Fungi are important to an ecosystem as

Answer 41

Decomposers

Question 42

A lichen

Answer 42

Consists of a fungus and a photosynthetic partner in a symbiotic relationship

Question 43

Reproductive structures in which spores form

Answer 43

Sporangia

Question 44

Group that has mold that grows on bread

Answer 44

Zygomycota

Question 45

Zygosporangium allows a mold to

Answer 45

Remain dormant until conditions are favorable

Question 46

Not true of ascomycetes

Answer 46

They form ascocarps during asexual reproduction

Question 47

Mushrooms are in what phylum?

Answer 47

Basidiomycota

Question 48

Mushrooms are examples of

Answer 48

Club fungi

Question 49

Individual filaments that make up a mycelium are called

Answer 49

Hyphae

Question 50

A hypha is a long string of cells that may be divided by

Answer 50

Septa

Question 51

Fungi digests organic matter

Answer 51

Outside their cell walls

Question 52

Fungi obtain nutrients by

Answer 52

Digesting organic matter externally before absorbing it

Question 53

Fungi obtain energy

Answer 53

By absorbing digested nutrients

Question 54

Fungi

Answer 54

All of the above

Question 55

Chitin is found in fungi and in

Answer 55

The exoskeletons of insects

Question 56

In which of the following enviornments would slime molds most likely exist?

Answer 56

On the floor of a forest

Question 57

A mass of cytoplasm that can ooze around obstacles is most likely a

Answer 57

Slime mold

Question 58

Euglena is an example of a protist that

Answer 58

Is both autotrophic and heterotrophic

Question 59

The agal phylum most essential to the production of photosynthetic products and oxygen for Earths heterotrophs is the phylum

Answer 59

Phacophyta

Question 60

Not a characteristic of the phylum chlorophyta

Answer 60

Only unicellular forms

Question 61

Not a characteristic used to classify algae

Answer 61

Habitat

Question 62

Although algae are relatively unspecialized, they may have structures specialized for

Answer 62

All of the above

Question 63

Algae that is most like plants

Answer 63

Multicellular algae

Question 64

Green algae and plants

Answer 64

All of the above

Question 65

Algae are

Answer 65

Found in both fresh and salt water

Question 66

Algae are

Answer 66

Autotrophic protist

Question 67

Algal blooms are caused by

Answer 67

High nutrient concentrations

Question 68

Not an environmental role of Protists

Answer 68

Protists form large amounts of cellulose

Question 69

The earliest known group of living organisms on earth was

Answer 69

Bacteria

Question 70

The process in which two paramecium come together after meiosis to exchange parts of their genetic material is

Answer 70

Conjugation

Question 71

Paeudopodia are used for

Answer 71

Movement

Question 72

All Protists

Answer 72

Have a true nucleus

Question 73

Most successful at fighting viral disease

Answer 73

Vaccination and vector control Aka -> both a and b

Question 74

Not a vector of viral disease

Answer 74

Prions

Question 75

Human activity that is most closely associated with the emergence of viruses not previously seen in humans

Answer 75

Clearing of forests for housing

Question 76

Not viral disease of humans

Answer 76

Hep. SARS shingles Answer: all of the above

Question 77

Antibiotics are ineffective against viral infections because

Answer 77

Antibiotics interfere with cellular processes that viruses do not preform

Question 78

In which cell cycles does viral DNA become integrated into the host cell's DNA?

Answer 78

Lysogenic