Viruses, Bacteria, Protists And Fungi
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This test will check your comprehensive understanding of Chapter 7
- 1.Why are viruses like parasites?
- A.
They harm the cells they enter.
- B.
They multiply.
- C.
THey use their own energy to develop.
- D.
They make their own food.
- 2.The genetic material of a virus is found it its
- A.
Coat
- B.
Core
- C.
Coat and core
- D.
Nucleus
- 3.Which of the following statements does NOT describe an active virus?
- A.
It attaches to the host cell.
- B.
It takes over the host cell's function.
- C.
It "hides" in the host cell.
- D.
Help the virus atach to its host.
- 4.What characteristic of viruses makes them useful in gene therapy?
- A.
Their ability to enter cells
- B.
Their ability to remain inactive for a long time
- C.
Their inability to multiply in cells
- D.
Their inability to take over the functions of host cells
- 5.Which shape describes some bacterial cells?
- A.
Cube-shaped
- B.
Bullet-shaped
- C.
Spiral
- D.
Robotlike
- 6.What process results in genetically different bacteria?
- A.
Binary fission
- B.
Respiration
- C.
Conjugation
- D.
Asexual reproduction
- 7.Which of the following is an example of indirect contact that spreads some infectious diseases?
- A.
Touching an infected person
- B.
Animal bites
- C.
Hugging an infected person
- D.
Inhaling infected drops of moisture
- 8.The best treatment for most viral infections is
- A.
An over the counter medicine
- B.
A vaccine
- C.
An antibiotic
- D.
Bed rest
- 9.What directly provides energy for a virus?
- A.
Food
- B.
Its host
- C.
The sun
- D.
A parasite
- 10.Which of the following structures are always found in bacterial cells?
- A.
Nuclei
- B.
Ribosomes
- C.
Flagella
- D.
Coats
- 11.Many bacterial diseases can be cured using
- A.
Toxins
- B.
Endospores
- C.
Viruses
- D.
Antibiotics
- 12.The spores that funguslike protists produce
- A.
Grown into new organisms
- B.
Produce slime on which the protist can move
- C.
Break down food for the protist
- D.
Form pseudopods
- 13.What might cause red tides?
- A.
Increase in nutrients in the water
- B.
Decrease in ocean temperature
- C.
Increase in oxygen in the water
- D.
Decreasein plant life in the water
- 14.When are red tides dangerous to humans?
- A.
When the oceans become warmer
- B.
When algae cause the fish population to increase
- C.
When nutrients increase
- D.
When algae toxins acculmulate in shellfish
- 15.Which statement does NOT describe eutrophication in a pond or lake?
- A.
A process of gradual change
- B.
A build up of nutrients
- C.
An increase in the amount of oxygen
- D.
An increase in the amount of surface algae
- 16.What factor will NOT increase the rate of eutrophication in freshwater?
- A.
Farm fertilizer runoff
- B.
Leaks from sewage treatment plants
- C.
Lawn fertilizer runoff
- D.
Eliminating sources of excess nutrients
- 17.The threadlike structures that make up the bodies of multicellular fungi are called
- A.
Hyphae
- B.
Nuclei
- C.
Mold
- D.
Cell walls
- 18.The chemicals that ooze from a fungus' hyphae into its food source
- A.
Absorb the food
- B.
Break down the food
- C.
Harden the food
- D.
Nourish the food source
- 19.A puffball fungus is a type of
- A.
Threadlike fungus
- B.
Sac fungus
- C.
Club fungus
- D.
Imperfect fungus
- 20.A fungus-plant root association is an example of
- A.
An independent relationship
- B.
Symbiotic relationship
- C.
A decomposing relationship
- D.
Disease fighting
- 21.What do yeast cells use a food source in breadmaking and winemaking?
- A.
Sugar
- B.
Salt
- C.
Carbon dioxide
- D.
Alcohol
- 22.Like animals, animal-like protists are
- A.
Autotrophs
- B.
Heterotrophs
- C.
Unicellular
- D.
Prokaryotes
- 23.Where would fungi NOT likely thrive
- A.
Forest floor
- B.
Wet bathroom tiles
- C.
Damp tree bark
- D.
Desert
- 24.What characteristic do all algae share?
- A.
They are autotrophs.
- B.
They are unicellular.
- C.
They are multicellular.
- D.
They live in colonies.
- 25.What characteristic do fungi share?
- A.
They are prokaryotes.
- B.
They are eukaryotes.
- C.
They are autotrophs.
- D.
They are multicellular.
- 26.What bacteria-killing fungus did Fleiming isolate in his 1928 experiment?
- A.
Rhizopus
- B.
Corn smut
- C.
Wheat rust
- D.
Penicillum
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