Exam 3

Question 1

horsetails are primarily characterized by the presence of

Answer 1

silica in their cell walls

Question 2

what role do vascular tissues (xylem & phloem) play in the adaptation of plants to land?

Answer 2

they transport water, minerals, and nutrients

Question 3

ferns reproduce through spores. Where are these spores typically found?

Answer 3

on underside of the fonds

Question 4

Which is true about life cycle of ferns?

Answer 4

they have a dominant sporophyte stage

Question 5

in the alternation of generations, what’s diploid phase called?

Answer 5

sporophyte

Question 6

what is the role of rhizoids in bryophytes?

Answer 6

anchorage and absorption

Question 7

which is a true lycophyte?

Answer 7

clubmoss

Question 8

which process leads to the formation of spores in the haploid platonic life cycle?

Answer 8

meiosis in the sporophyte

Question 9

which part of the moss life cycle is dominant and photosynthetically active?

Answer 9

gametophyte

Question 10

which feature of Cooksoma suggests it played a crucial role in the colonization of land by plants?

Answer 10

development of vascular tissue

Question 11

seed dormancy an be an adaptation

Answer 11

increase the seed’s weight

Question 12

the sticky part of a flower’s pistil, which catches pollen is called:

Answer 12

stigma

Question 13

ephedrine is a stimulant that is derived from a member of the phylum

Answer 13

gnetophyta

Question 14

in gymnosperms, fertilization of the ovule typically occurs

Answer 14

several months after pollination

Question 15

which statement is true regarding the evolutions history of plants?

Answer 15

gymnosperms evolved before angiosperms

Question 16

double fertilization produces a _ embryo and a _ endosperm

Answer 16

diploid, haploid

Question 17

due to their pinnately compound leaves… which phylum are thought as type of palm?

Answer 17

Cycadophyta

Question 18

what happens to the ovary after fertilization in angiosperms?

Answer 18

it becomes the fruit

Question 19

which plant of flower’s stamen produces pollen?

Answer 19

anther

Question 20

why is external water not essential for fertilization in seed plants?

Answer 20

pollen grains are transported by wind or an animal

Question 21

a major distinguishing feature between monocot and eudicot stems is the organization of the

Answer 21

vascular tissue

Question 22

spines in cacti are modified leaves that primarily serve what function

Answer 22

protection

Question 23

In the annual rings of woody trees, how does the cell size within the xylem of the spring and summer wood compare to the fall and winter wood

Answer 23

the cells are larger

Question 24

which root system typically has one main root that grows down vertically, with smaller lateral branches?

Answer 24

taproot system

Question 25

plant cells that give rise to two cells, one of which is free to differentiate into various kinds of cells that contribute to the plant body, are called

Answer 25

meristematic cells

Question 26

which of the following is not a modified stem?

Answer 26

spine

Question 27

which of the following plants has a tuber as its modified stem?

Answer 27

potato

Question 28

In an experiment, some herbaceous, nonwoody plants were exposed… The flexibility of these plants was due to the __ cells

Answer 28

collenchyma

Question 29

which of the following is a characteristic feature of monocot stems?

Answer 29

vascular bundles scattered throughout the stem

Question 30

produces parenchyma, collenchyma, and sclerenchyma cells

Answer 30

ground meristem