Exam 1

Question 1

What ar3 the three domains

Answer 1

Eukaryotes, Bacteria, Archaea

Question 2

Which explains the basis the basis of placing organisms in taxa before molecular schematics?

Answer 2

Cell walls are composed of different biochemicals

Question 3

Which kingdom is polyphyletic and unacceptable based on current classifications?

Answer 3

Protista

Question 4

Which statement about genomes of prokaryotes is correct?

Answer 4

Composed of circular DNA

Question 5

Bacteria with a thick peptidoglycan capsule layer outside the cell wall are what?

Answer 5

Gram positive

Question 6

Heterocyst’s can be best defined as what?

Answer 6

Nitrogen fixing cells

Question 7

Which types of bacteria are photosynthetic

Answer 7

Cyanobacteria

Question 8

All protists are

Answer 8

Eukaryotic

Question 9

According to endosymbiosis, how did mitochondria originate?

Answer 9

Engulfed, originally free living proteobacteria

Question 10

Why are viruses obligate parasites?

Answer 10

They need a host to reproduce

Question 11

Which process results in genetic recombination, but is separate from the process by which the population size of paramecium increases?

Answer 11

Conjugation

Question 12

A large seaweed that floats freely on the surface must be lacking a…

Answer 12

Hold fast

Question 13

This group of protists shows alteration of generations and can live at great depths

Answer 13

Red Algae

Question 14

This organism has amoebid and sporing stages

Answer 14

Slimemolds

Question 15

What is a characteristic of the lyric cycle?

Answer 15

A large number of phases are released at the same time.

Question 16

In septate fungi, which structures allow cytoplasmic streaming to distribute needed nutrients, synthesized compounds, and organelles throughout hyphae?

Answer 16

Pores in cross- walls

Question 17

The vegetative bodies of most fungi are?

Answer 17

Composed of hyphae, referred to as mycelium, usually underground.

Question 18

The fusion of different genetic strands of fungi in sexual reproduction is known as…

Answer 18

Plasmogamy

Question 19

In mycorrhiza, what does fungi provide to plants?

Answer 19

Water and minerals

Question 20

Which of these ways to acquire nutrients does not apply to any fungus?

Answer 20

Photosynthetic

Question 21

What are sporangia of bread mold Rhizopus?

Answer 21

A sexual structures producing haploid spores

Question 22

— are the organisms that are the base of the ocean food chains
True algae have — to conduct photosynthesis, but Cyanobacteria don’t
During the — cycle, viral genes are incorporated in the cell, and may have dormancy

Answer 22

Diatoms
Chloroplasts
Lysogenic

Question 23

Explain bacterial conjunction

Answer 23

Two bacteria exchange a plasmid for a handful of traits via sex pilus.

Question 24

What group of Protista is closest to plants?

Answer 24

Green algae, similar chloroplasts reflecting similar wavelengths.

Question 25

Rank the taxonomy groups from least to most specific

Answer 25

Domain, kingdom, phylum, class, order, family, genus, species

Question 26

T/F… Staphylo means cluster Antibiotics are an effective way to treat the flu

Answer 26

True | False

Question 27

Name a bacteria with curved cells and grows individually

Answer 27

Monospirilus