Virus/Bacteria Test Review

1

100

DAILY DOUBLE: answer alone - The living organism that a parasite lives on is the:
   A) host
   B) vector
   C) invader
   D) cell

A) host

200

Martinus Beijerinck was the first to name these very small infectious particles:
   A) viruses
   B) bacteria
   C) fungi
   D) parasites

  A) viruses

300

Wendell Stanley concluded that viruses were not:
   A) harmful
   B) infectious
   C) alive
   D) cellular

   C) alive

400

Viruses are not affected by any known:
    A) vaccines
    B) antibiotics
    C) medicines
    D) enzymes

B) antibiotics

500

Retroviruses have _____________ as their genetic information.

A) RNA

B) DNA

C) proteins

D) receptors

A) RNA

2

100

Archaea that thrive at high temperatures and low pH are called:

A) halophiles

B) thermoacidophiles

C) extremophiles

D) methanogens

C) extremophiles

200

Salt-loving archaea are known as:

A) halophiles

B) methanogens

C) thermoacidophiles

D) psychrophiles

A) halophiles

300

Retroviruses convert their RNA template into:

A) proteins

B) more RNA

C) DNA

D) capsids

C) DNA

400

The cell walls of Archaea lack:
    A) proteins
    B) peptidoglycans
    C) lipids
    D) DNA

    B) peptidoglycans

500

DAILY DOUBLE: answer alone - 

Viral DNA embedded into the host DNA is called a:
    A) capsid
    B) lysogen
    C) prophage
    D) receptor

C) prophage

3

100

Bacteria are classified as:
    A) eukaryotes
    B) prokaryotes
    C) viruses
    D) fungi

 B) prokaryotes

200

A virus like HIV is a type of:
    A) bacteriophage
    B) prion
    C) retrovirus
    D) viroid

C) retrovirus

300

A sticky outer layer that protects some bacteria is the:

A) cell wall

B) plasma membrane

C) capsule

D) flagella

B) plasma membrane

400

Short, hair-like structures that help bacteria attach to surfaces are:

A) flagella

B) pili

C) ribosomes

D) capsules

B) pili

500

Bacteria that feed on dead organic matter are called:

A) parasites

B) saprophytes

C) autotrophs

D) photoautotrophs

B) saprophytes

4

100

Bacteria that use chemicals to make their own food are:

A) photoautotrophs

B) chemoautotrophs

C) saprophytes

D) parasites

B) chemoautotrophs

200

The capsid is made of:
   A) lipids
   B) sugars
   C) proteins
   D) nucleic acids

  C) proteins

300

Bacteria that use light to produce food are:

A) photoautotrophs

B) chemoautotrophs

C) saprophytes

D) parasites

A) photoautotrophs

400

"Black smokers" are hydrothermal vents associated with:

A) halophiles

B) black algae

C) thermoacidophiles

D) saprophytes

C) thermoacidophiles

500

The protein coat surrounding viral DNA or RNA is called the:
   A) membrane
   B) flagella
   C) capsule
   D) capsid

D) capsid

5

100

Until recently, all prokaryotes were placed into the kingdom:
    A) Protista
    B) Fungi
    C) Monera
    D) Plantae

    C) Monera

200

Methanogens live in _____________________ environments.

A) oxygen-rich

B) anaerobic

C) dry

D) cold

B) anaerobic

300

DAILY TRIPLE: Has to be answered by yourself -

Which structure contains a small, circular piece of DNA separate from the bacterial chromosome?
    A) ribosome
    B) plasmid
    C) pili
    D) capsid

 B) plasmid

400

DAILY DOUBLE: answer alone - Organisms that live in or on others causing them harm are called:

A) bacteria

B) parasites

C) viruses

D) hosts

B) parasites

500

The cycle where the virus remains inactive in the host cell is the:
    A) lysogenic cycle
    B) lytic cycle
    C) active cycle
    D) dormant cycle

A) lysogenic cycle