Question 1

A dinoflagellate has two flagella.

Accepted Answer

A) True 
 B)False

Question 2

Fungi and plants are similar because they both

Accepted Answer

A)  carry out photosynthesis.
B)  have cellulose as the main component of their cell walls.
C)  have glycogen as the main storage carbohydrate.
D)  All answers are correct.
E)  have cell walls.F) B) and C)
G) B) and D)

Question 3

Protein was the first molecule carrying genetic information.

Accepted Answer

A) True 
 B)False

Question 4

Chytridiomycetes produce enzymes that digest cellulose,chitin,and similar molecules.These fungi are contributing to the decline of amphibians worldwide through what mechanism?

Accepted Answer

A)  by infecting their lungs
B)  by digesting keratin in the frog's skin
C)  by killing their eggs in the water
D)  by digesting chitin in the cell wall of the frog's cells
E)  by digesting cellulose in the cell wall of the frog's cellsF) A) and E)
G) C) and D)

Question 5

A lichen is made up of which two types of organisms?

Accepted Answer

A)  a fungus and a plant
B)  a plant and a cyanobacterium
C)  a fungus and an alga or cyanobacterium
D)  an alga and a bacterium
E)  an alga and a plantF) A) and E)
G) B) and D)

Question 6

If you were taken to the beach and asked to stand near a sample of the largest kind of algae,you would search for a piece of

Accepted Answer

A)  kelp.
B)  diatoms.
C)  red algae.
D)  golden algae.
E)  green algaE.F) C) and D)
G) D) and E)

Question 7

Which of the following is not a similarity supporting the endosymbiont theory?

Accepted Answer

A)  similarity in the DNA of mitochondria and prokaryotes
B)  similarity in the nucleus of prokaryotes and mitochondria
C)  similarity in the RNA of mitochondria and prokaryotes
D)  similarity in the ribosomes of mitochondria and prokaryotes
E)  All answers support the endosymbiont theory.F) None of the above
G) C) and D)

Question 8

What did Stanley Miller's simulation of Earth's early conditions produce?

Accepted Answer

A)  living cells
B)  amino acids
C)  plants
D)  DNA molecules
E)  RNA moleculesF) A) and E)
G) C) and D)

Question 9

Sexual spores are formed by the fusion of two haploid nuclei.They then go through meiosis to form spores.Spores are which of the following?

Accepted Answer

A)  haploid
B)  diploid
C)  dikaryotic
D)  tetraploid
E)  uniploidF) None of the above
G) A) and E)

Question 10

The domain (domains) that contain prokaryotes is (are)

Accepted Answer

A)  ArchaeA.
B)  Bacteria.
C)  both Archaea and Bacteria.
D)  Eukarya.
E)  both Bacteria and Eukarya.F) All of the above
G) C) and D)

Question 11

Scientists have fossils of the first life on Earth.

Accepted Answer

A) True 
 B)False

Question 12

Where did the first life on Earth evolve?

Accepted Answer

A)  in the ocean
B)  Scientists do not know.
C)  on land
D)  somewhere else in the universe
E)  in a freshwater habitatF) A) and E)
G) A) and B)

Question 13

How did multicellular organisms evolve from unicellular organisms?

Accepted Answer

A)  Single-celled organisms joined together,or failed to separate after cell division.
B)  Single-celled organisms joined together only.
C)  Single-celled organisms failed to separate after cell division only.
D)  Single-celled organisms joined together,or absorbed other species by endosymbiosis.
E)  One species absorbed another species by endosymbiosis only.F) A) and B)
G) A) and E)

Question 14

Mycorhizal fungi that do not reproduce sexually and have large asexual spores are

Accepted Answer

A)  glomeromycotA.
B)  basidiomycota.
C)  ascomycota.
D)  zygomycota.
E)  chytridiomycota.F) C) and D)
G) C) and E)

Question 15

Because archaea were first found in environments that lacked oxygen or were very hot,acidic,or salty,they were nicknamed "extremophiles."

Accepted Answer

A) True 
 B)False

Question 16

Which is a difference between how a frog and a fungus obtain energy?

Accepted Answer

A)  Frogs ingest their food;chytridiomycetes secrete digestive enzymes.
B)  Chytridiomycetes ingest their food;frogs secrete digestive enzymes.
C)  Frogs are heterotrophs;chytridiomycetes are phototrophs.
D)  Chytridiomycetes are heterotrophs;frogs are phototrophs.
E)  Frogs are autotrophs;chytridiomycetes are phototrophs.F) A) and B)
G) C) and D)

Question 17

You are analyzing samples under a microscope,and one sample coming from what you suspect is a fungus.You find tiny filaments,which,in your report,you call

Accepted Answer

A)  hyphae.
B)  spores.
C)  fruiting bodies.
D)  gills.
E)  chitin.F) A) and C)
G) A) and D)

Question 18

The three most common shapes of bacteria are

Accepted Answer

A)  spirillum,endospore,and peptidoglycan.
B)  bacillus,spirillum,and coccus.
C)  cubical,spiral,and thread-like.
D)  spirillum,nucleiod,and peptidoglycan.
E)  cubical,spherical,and rod-shaped.F) B) and E)
G) C) and D)

Question 19

The Russian chemist Oparin suggested that for organic molecules to form on Earth,the atmosphere was probably rich in all of these except

Accepted Answer

A)  oxygen.
B)  water.
C)  ammonia.
D)  methane.
E)  hydrogen.F) All of the above
G) C) and E)

Question 20

Prokaryotes lack which feature?

Accepted Answer

A)  a nucleus
B)  RNA
C)  DNA
D)  a cell membrane
E)  a cell wallF) D) and E)
G) C) and D)

Exam 15: Evolution and Diversity of Microbial Life

Which of the following is not a similarity supporting the endosymbiont theory?

Correct AnswerverifiedShow Answer

Which is a difference between how a frog and a fungus obtain energy?

Correct AnswerverifiedShow Answer

The three most common shapes of bacteria are

Correct AnswerverifiedShow Answer

Fungi and plants are similar because they both

Correct AnswerverifiedShow Answer

If you were taken to the beach and asked to stand near a sample of the largest kind of algae,you would search for a piece of

Correct AnswerverifiedShow Answer

Sexual spores are formed by the fusion of two haploid nuclei.They then go through meiosis to form spores.Spores are which of the following?

Correct AnswerverifiedShow Answer

What did Stanley Miller's simulation of Earth's early conditions produce?

Correct AnswerverifiedShow Answer

Where did the first life on Earth evolve?

Correct AnswerverifiedShow Answer

How did multicellular organisms evolve from unicellular organisms?

Correct AnswerverifiedShow Answer

Scientists have fossils of the first life on Earth.

Correct AnswerverifiedShow Answer

Prokaryotes lack which feature?

Correct AnswerverifiedShow Answer

The Russian chemist Oparin suggested that for organic molecules to form on Earth,the atmosphere was probably rich in all of these except

Correct AnswerverifiedShow Answer

Because archaea were first found in environments that lacked oxygen or were very hot,acidic,or salty,they were nicknamed "extremophiles."

Correct AnswerverifiedShow Answer

The domain (domains) that contain prokaryotes is (are)

Correct AnswerverifiedShow Answer

A lichen is made up of which two types of organisms?

Correct AnswerverifiedShow Answer

A dinoflagellate has two flagella.

Correct AnswerverifiedShow Answer

Mycorhizal fungi that do not reproduce sexually and have large asexual spores are

Correct AnswerverifiedShow Answer

Chytridiomycetes produce enzymes that digest cellulose,chitin,and similar molecules.These fungi are contributing to the decline of amphibians worldwide through what mechanism?

Correct AnswerverifiedShow Answer

You are analyzing samples under a microscope,and one sample coming from what you suspect is a fungus.You find tiny filaments,which,in your report,you call

Correct AnswerverifiedShow Answer

Protein was the first molecule carrying genetic information.

Correct AnswerverifiedShow Answer

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