Exam 2 Review

Question 1

Chemicals, secreted by soil fungi, that inhibit the growth of bacteria, are known as

Answer 1

antibiotics

Question 2

Prokaryotes typically undergo ____ via the process of ____.

Answer 2

asexual reproduction; binary fission

Question 3

Gymnosperms and angiosperms have the following in common except

Answer 3

ovaries.

Question 4

Which of the following is involved in providing structural support to the plant?

Question options:

xylem only

phloem only

both phloem and xylem

either phloem or xylem

neither phloem nor xylem

Answer 4

both phloem and xylem

Question 5

The result of heterospory is:

Question options:

the existence of male and female sporophytes.

the existence of male and female gametophytes.

the absence of sexuality from both plant generations.

both (A) and (B) above.

Answer 5

both (A) and (B) above.

Question 6

The photosynthetic symbiont of a lichen is often a(n)

Answer 6

green alga

Question 7

A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, the following characteristics are noted: flagellated sperm, xylem with tracheids, separate gametophyte and sporophyte generations with the sporophyte dominant, and no seeds. This plant is probably most closely related to

Answer 7

ferns.

Question 8

Protists are alike in that all are

Answer 8

eukaryotic

Question 9

Which of the following in prokaryotes is composed almost entirely of peptidoglycan?

Answer 9

cell wall

Question 10

An endospore is a thick walled resistant spore produced to survive adverse conditions in some species of:

Answer 10

Bacteria

Question 11

Fungi can exist in all of the following forms except as :

Question options:

parasites

autotrophs

heterotrophs

mutualists

decomposers

Answer 11

autotrophs

Question 12

Which of the following do all fungi have in common?

Question options:

symbioses with algae

meiosis in basidia

sexual life cycle

coenocytic hyphae

absorption of nutrients

Answer 12

absorption of nutrients

Question 13

A biologist is trying to classify a newly discovered fungus on the basis of the following characteristics: filamentous appearance, reproduction by asexual spores, no apparent sexual phase, and parasitism of woody plants. If asked for advice, to which group would you assign this new species?

Answer 13

Deuteromycota

Question 14

The most recent common ancestor of all land plants was probably similar to modern-day members of which group?

Answer 14

green algae

Question 15

Which of the following types of bacteria is likely to be resistant to antibiotics?

Answer 15

gram negative

Question 16

Angiosperm double fertilization is so-called because it features the formation of

Answer 16

one embryo involving one sperm cell and of endosperm involving a second sperm cell.

Question 17

Which of the following results in identical cells in bacteria?

Question options:

conjugation

mutation

binary fission

transduction

transformation

Answer 17

binary fission

Question 18

Cyanobacteria are

Answer 18

photoautotrophs.

Question 19

An alga was discovered that was marine, multicellular and lives at a depth penetrated only by blue light. This alga probably belongs to which group of algae

Answer 19

red

Question 20

Which of the following types of fungi is not found?

Question options:

eukaryotic & unicellular

prokaryotic & unicellular

eukaryotic & multicellular

coenocytic hyphae

with septate hyphae

Answer 20

prokaryotic & unicellular

Question 21

Malaria is caused by:

Answer 21

a protist

Question 22

Which of these taxa contains species that produce potent toxins that can cause extensive fish kills, contaminate shellfish, and poison humans?

Answer 22

dinoflagellates

Question 23

Flagellated sperms is / are produced in

Answer 23

both bryophytes & ferns

Question 24

An organism was discovered in a pond that could be either heterotrophic or photoautotrophic depending on the availability of nutrients. You would classify this organism as a/an:

Answer 24

protist

Question 25

Arrange the following from largest to smallest:

1. ascospore
2. ascocarp
3. ascomycete
4. ascus

Answer 25

3_2_4_1

Question 26

The relationship in a lichen is described as:

Answer 26

mutualism

Question 27

Organisms of which kingdom are responsible for the majority of primary production in the oceans?

Answer 27

protist

Question 28

Bryophytes never formed forests (mats, yes, but not forests) because

Answer 28

they lack lignified vascular tissue.

Question 29

The strongest evidence for the endosymbiotic origin of eukaryotic organelles is the similarity between extant prokaryotes and which of the following?

Answer 29

mitochondria and chloroplasts

Question 30

If a fern gametophyte is a hermaphrodite (that is, has both male and female gametangia on the same plant), then it:

Answer 30

belongs to a species that is homosporous

Question 31

In addition to seeds, which of the following characteristics are unique to the seed-producing plants?

Answer 31

Pollen

Question 32

Which of the following flower parts develops into a seed?

Answer 32

ovule

Question 33

A bacteria that is a bacilus is expected to have which of the following shapes?

Answer 33

rod shaped

Question 34

How have fruits contributed to the success of angiosperms?

Answer 34

by facilitating dispersal of seeds

Question 35

Which of the following is not common to all phyla of vascular plants?

Answer 35

the development of seeds

Question 36

Which of the following is used to transfer genes for antibiotic resistance on plasmids between living bacteria.

Answer 36

conjugation