Exam 3

Question 1

Both viruses and living organisms…

Answer 1

Process either a DNA or RNA genome

Question 2

Viruses…

Answer 2

Lack metabolic machinery

Question 3

Living organisms…

Answer 3

Have ability to respond to stimuli

Question 4

Type of genetic recombination that occurs when bacteria pick up free pieces of DNA from the environment.

Answer 4

Transformation

Question 5

Transfer of genetic material from one cell to another.

Answer 5

Conjugation

Question 6

Exchange of DNA between bacteria by means of bacteriophage.

Answer 6

Transduction

Question 7

Short bristle-like fibers that may allow a prokaryote to attach to the surface of a host cell.

Answer 7

Fimbriae

Question 8

Main classes of antibiotics that inhibit the biosynthesis

Answer 8

Cell wall and protein

Question 9

Where protein synthesis occurs in prokaryotic cells.

Answer 9

Ribosomes

Question 10

Most common form of production of protists

Answer 10

Asexual

Question 11

Endosymbiotic theory explains :

Answer 11

How eukaryotic cells acquired mitochondria and chloroplasts.

Question 12

Groups of eukaryotes that are very diverse, usually single-celled, but may be multicellular or colonial

Answer 12

Protists

Question 13

Algal are what type of protists?

Answer 13

Photoautotrophic

Question 14

6 taxonomic groups called ________, which include protists, plants, animals, and fungi

Answer 14

Supergroups

Question 15

Protists aren’t a _________ group

Answer 15

Monophyletic

Question 16

Sort Taxonomic group from largest to smallest

Answer 16

1) domain
2) supergroup
3) kingdom
4) phylum

Question 17

Body of most fungi is _____1__ and known as __2____. Which is divided into a network of filaments called___3___.

Answer 17

1) multicellular
2) mycelium
3) hyphae

Question 18

Often, ____1___ or basidiomycetes are the fungi involved, and they form several layers of hyphae, one of which envelops the photosynthetic ______2 ________.

Answer 18

1) ascomycetes
2) algal cells

Question 19

5 reasons why fungi are important to ecosystems.

Answer 19

1) form mycorrhizal with plant roots.
2) form associations called lichens with algae or Cyanobacteria
3) absorb carbon dioxide from the atmosphere and produce oxygen gas
4) causes diseases in plants and animals
5) decompose cellulose and other organic material

Question 20

2 characteristics of modern land plants are absent in bryophytes?

Answer 20

1) sporophyte is the dominant generation
2) vascular tissue

Question 21

4 gymnosperm examples

Answer 21

Gnetophytes, cycads, conifers, and ginkgoes

Question 22

Clay, silt, sand. Sort particle size from largest to smallest

Answer 22

1) sand
2) silt
3) Clay

Question 23

Why is it important that clay + humus be present in soil?

Answer 23

Clay and humus bind to minerals and keep them from leaching away

Question 24

3 similarities between bryophyte and modern land plants

Answer 24

1) alternation of generations
2) presence of stomata
3) apical tissue producing complex tissues

Question 25

3 characteristics of monocots

Answer 25

1) flower parts in multiples of threes
2) parallel leaf venation
3) pollen grain with one pore

Question 26

3 characteristics of eudicots

Answer 26

1) netted leaf venation
2) pollen grain with 3 pores
3) flower parts in multiples of fours or fives

Question 27

3 characteristics present in plant cells but not animal cells.

Answer 27

1) cell division involves a cell plate
2) plastids are present
3) cell wall present

Question 28

3 elements that comprise 95% of plant’s dry weight.

Answer 28

Hydrogen, carbon, oxygen

Question 29

3 Characteristics of animal cells but not plant cells

Answer 29

1) vacuoles are small or absent
2) centrioles present during mitosis
3) cell division involves a cleavage furrow

Question 30

Megaphylls helped plants by:

Answer 30

1) giving more surface area for Solar energy collection.
2) allowing more food production