Bio 102 Part 1

Front 1

The main function of the cotyledons in a bean see is

Back 1

provide food for the young plant

Front 2

The neck of a banjo is made of

Back 2

secondary xylem

Front 3

Plants in the genus Cinchona were imortant because they

Back 3

were a source of quinine

Front 4

A taproot is fromed by plants when the ......... becomes the main root.

Back 4

radicle

Front 5

In roots, the tissue that is the next to the cortex is the

Back 5

epidermis

Front 6

The roots of ....... contain alkaloids that were used as love poitns and as anesthesia for surgery. When harvesting these roots, a popular myth recommended that black dogs do the actual pulling of the room from the ground.

Back 6

mandrake

Front 7

Secondary growth in stems results from the activities of the vascular cambium which forms

Back 7

2 prime xylem to the inside, 2 prime phloem to the outside

Front 8

In the center of the stem of a dicot is found what tissue

Back 8

pith

Front 9

The glue-like compound that binds cells together in a plant is

Back 9

pectin

Front 10

The strength of a piece of wood is determined mainly by what cell feature

Back 10

cell walls

Front 11

Most starch is found in what part of a cereal grain?

Back 11

endosperm

Front 12

In the drawing, the location of the secondary phloem is indicated by what letter?

Back 12

e

Front 13

A piece of pine (conifer) wood consists mostly of

Back 13

tracheids

Front 14

Seeds of some plants do not germinate when planted in moist soil because that have a heard, thick seed coat that prevents water and oxygen from entering the seed. The general name for failure of mature seeds to germinate is

Back 14

dormancy

Front 15

Sieve tube members occur in which tissue?

Back 15

Phloem

Front 16

Cork cells are produced from mitosis and cytokinesis that occur in

Back 16

cork cambium

Front 17

Roots are a good source of food for eople because they often contain

Back 17

starch in the cortex

Front 18

The disease beriberi is caued by the absence of a vitamin from the human diet. Where in the rice grain would this vitamin occur?

Back 18

germ or bran

Front 19

Wood that conucts sound very well (such as that on the face (top) of a guitar or violin) has what feature?

Back 19

Thick cell walls in most cases

Front 20

Correctly complete the statement below about how modern Coca cola differs from the original formula. "Modern Coca cola....."

Back 20

doe not contain cocaine

Front 21

The apical meristem of roots is protected by what structure as the root graows through the soil?

Back 21

root cap

Front 22

In the center of a dicot root is

Back 22

water conducting tissue

Front 23

A strengthening compound found in the cell wall of some cells is

Back 23

lignin

Front 24

When the epidermis is lost during secondary growth of stems, its function is taken overy by

Back 24

cork cells

Front 25

The material that Levi used to manufacture the first plants that bore his name (Levis) came from a plant that also is the source of material for making canvas and cordage. What kind of cells constituted the bulk of the material that was used for the cloth?

Back 25

fiber cells

Front 26

Enriched white flower is white flour to which has been added niacin, thiamin, riboflavin and iron. To bring enriched flour up to the nutritional level of whole wheat flour, how many more nutrients would have to be added?

Back 26

15

Front 27

A branch is cut from a 200 year old oak tree. When the annual rangs are counted, only 10 are present. The best explanation for this difference between 10 and 200 is.......

Back 27

The branch is just 10 years old.

Front 28

Roots that develop from stems or leaves are called

Back 28

adventitious roots

Front 29

Cutin, a waterproofing compound, is found in what kind of cells in the stem?

Back 29

epidermal

Front 30

Cinnamon and cassia come from what part of the plant

Back 30

bark

Front 31

"Whole wheat" flour is more nutritious than white flour because it contains

Back 31

endosperm, bran and germ

Front 32

In a corn seed, the structure that occupies most of the space is

Back 32

the endosperm

Front 33

What cell type(s) occur(s) in both "hardwoods" and "softwoods"?

Back 33

tracheid and parenchyma

Front 34

During tip growth in roots, new cells are formed by mitosis. Which of the two cells that results from each mitosis will greatly elongate?

Back 34

the cell farther away from the root tip

Front 35

The piece of tree shown at the right was cut from a tree last month (January). What year did the tree grow the least?

Back 35

2003

Front 36

Most of an onion that is used for cooking is composed of what plant part?

Back 36

leaves

Front 37

Branch (=lateral or secondary) roots originate in the mian root from the

Back 37

pericycle

Front 38

The major type of plant cell consumed by humans for food is

Back 38

parenchyma

Front 39

The embryo of a peanut seed includes

Back 39

plumule, radicle and cotyledons only

Front 40

Which cell(s) function when they are dead?

Back 40

tracheids, fibers and vessel elements

Front 41

When stems grow in heigh, it is a result of the expansion of new cells produced by mitosis and cytokinesis in the .......

Back 41

aprical meristem

Front 42

Most sugar is transported vertically in a tree in the

Back 42

bark

Front 43

Carrots are biennials. When is the best time to harvest carrots to obtain teh largest ones?

Back 43

at the end of the first growing season

Front 44

Openings in teh Bark of treese that allow oxygen to diffuse into a tree trunk are

Back 44

lenticles

Front 45

Commerical cork comes from , and about half of all that is produced comes from .

Back 45

Quercus suber, portugal

Front 46

Starting at the oustide of a plant cell and moving toward teh center, which sequence below correctly describes the structures that are present?

Back 46

cell wall, plasma membrane, cytoplasm

Front 47

The scientific name for corn is Zea mays. The genus of this plant is and the species is .

Back 47

Zea, mays

Front 48

Jesuit powder refers to

Back 48

ground tree bark that contained quinine

Front 49

When a bean seed germinates, the food that is needed tomake roots and stems and leaves initially comes from the

Back 49

cotyledons

Front 50

After commercial cork is harvested, a new layer can be harvested about 10 years later from the same plant. In what tissue is formed the layer of cells that makes the new cork cells?

Back 50

Secondary phloem