Question 1

Alexander Fleming was the scientist who discovered

Accepted Answer

penicillin

Answer

antibiotic

Answer

fungus

Answer

bacteria

Question 2

Which of the following bacterial adaptations help a bacterium avoid being engulfed by white blood cells?

Accepted Answer

capsule

Answer

capsid

Answer

cell wall

Answer

flagella

Question 3

The cell wall of a bacteria

Accepted Answer

is broken down by penicillin

Answer

causes the disease

Answer

is involved in protein synthesis

Answer

controls what enters ad leaves the cell

Question 4

DNA transfer from a bacterial cell to another bacterial cell by cell-cell contact is?

Accepted Answer

Binary fission

Answer

Conjugation

Answer

Replication

Answer

Endospore synthesis

Question 5

Bacteria that live in the roots of legumes

Accepted Answer

Change ammonia into nitrogen gas

Answer

Provide ATP for the plants

Answer

Provide usable nitrogen for the plants

Answer

Are autotrophic

Question 6

Which of the following would be most likely to live in Utah’s Great Salt Lake?

Accepted Answer

Halophiles

Answer

Thermoacidophiles

Answer

Methanogens

Answer

all of the above

Question 7

A _____ is never a part of a virus

Accepted Answer

cell wall

Answer

protein coat

Answer

nucleic acid

Answer

viral envelope

Question 8

What is the major distinction between prokaryotic and eukaryotic cells?

Accepted Answer

Prokaryotic cells don’t have a nucleus, but eukaryotic cells do

Answer

Eukaryotic cells are smaller than prokaryotic cells

Answer

Prokaryotic cells don’t have DNA, and eukaryotic cells do

Answer

Prokaryotic cells cannot obtain energy from their environment

Question 9

All of the following are true for viruses EXCEPT:

Accepted Answer

Viruses may replicate without a host cell

Answer

Virus may replicate in a bacterial or eukaryotic host

Answer

Genetic material may be RNA or DNA

Answer

The envelope of the virus enters the host by endocytosis

Question 10

A bacterium’s circular chromosome is copied during

Accepted Answer

Conjugation

Answer

Binary fission

Answer

Mitosis

Answer

Endospore production

Question 11

Which of the following statements is TRUE?

Accepted Answer

Endospores allow a cell to survive environmental changes

Answer

Endospores are for reproduction

Answer

Endospores enable the bacteria to move

Answer

Endospores allow rapid metabolism

Question 12

Some bacteria are able to propel themselves through liquid by means of

Accepted Answer

flagella

Answer

pilli

Answer

cell wall

Answer

centriole

Question 13

If the Gram stain method is used to stain Gram positive bacterium, it appears?

Accepted Answer

Deep purple, because of a thicker cell wall

Answer

Red or pink, because of a thicker cell wall

Answer

Deep purple, because of a thinner cell wall

Answer

Red or pink, because of a thinner cell wall

Question 14

The steps in Gram stain are the following:

Accepted Answer

Crystel Violet - Mordant - Alcohol - Safranin

Answer

Safranin - Alcohol - Mordant - Crystel Violet

Answer

Crystel Violet - Alcohol - Mordant - Safranin

Answer

Crystel Violet - Safranin - Alcohol - Mordant

Question 15

Bacterial form produced under unfavorable  environmental conditions

Accepted Answer

endospores

Answer

exospores

Answer

pilli

Answer

plasmids

Question 16

Saprophytic bacteria

Accepted Answer

use organic molecule as a food source

Answer

traps the sun’s energy to make food

Answer

contain the pigment chlorophyll

Answer

break down and release the energy of inorganic compounds

Question 17

Many are found in sewage disposal plants and are anearobes

Accepted Answer

methanogens

Answer

thermoacidophils

Answer

technophils

Answer

halophils

Question 18

Process by which some bacteria convert nitrogen gas into ammonia

Accepted Answer

nitrogen fixation

Answer

nitrogenation

Answer

probiotics

Answer

decomposers

Question 19

Bacteria that require __________ for respiration are called ________.

Accepted Answer

oxygen - obligate aerobes

Answer

oxygen - obligate anearobes

Answer

hydrogen - archeabacteria

Answer

food - obligate saprophytic

Question 20

Scientists think that the first bacteria on Earth were

Accepted Answer

anaerobes

Answer

obligate aerobes

Answer

half anearobes

Answer

aerobes

Question 21

Layers that surround capsid of some viruses are called

Accepted Answer

envelope

Answer

cell membrane

Answer

cell wall

Answer

capsule

Question 22

As an endospore a bacteria

Accepted Answer

is protected

Answer

causes diseases

Answer

produces toxin

Answer

dries out

Question 23

Nitrogen is important because all organisms need it to make

Accepted Answer

all of the above

Answer

DNA

Answer

ATP

Answer

protein

Question 24

Bacteria return nutrients to the environment by breaking down

Accepted Answer

Dead organic matter

Answer

Enzymes and sugars

Answer

Nitrogen in legumes

Answer

Inorganic material

Question 25

Botulism is caused by endospores of C. botulinum that have

Accepted Answer

germinated

Answer

been killed

Answer

produced toxins

Answer

reproduced

Question 26

________ is a prefix that describes the grape like pattern growth of bacteria

Accepted Answer

Staph

Answer

diplococci

Answer

cocci

Answer

Strep

Question 27

The genetic material of a bacteria is found in

Accepted Answer

the nucleiod region

Answer

nucleus

Answer

cell membrane

Answer

organelle

Question 28

Bacteria that are obligate anaerobes release energy from food by

Accepted Answer

fermentation

Answer

using oxygen

Answer

cellular respiration

Answer

using nitrogen

Question 29

A structure  that helps two bacteria exchange DNA

Accepted Answer

pillis

Answer

flagella

Answer

cell membrane

Answer

endospore

Question 30

To kill endospores items must be

Accepted Answer

sterilized

Answer

pressurized

Answer

heated

Answer

cooked

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