BOT 1010 Exam 3

Given their work environments and functions,

which do you think contain the most anti-

bacterial and anti-fungal compounds?

(all answers get full credit)

All have about the same amount

Which vegetable is a root?

The palisade

mesophyll is

specialized for ___ and

the spongy mesophyll

is specialized for ___.

Absorbing light;

gas exchange

Here is a cross

section of a leaf

that grows

curled up.

Stomata are

indicated by

blue arrows.

This plant is

probably a

Xerophyte

Because vascular

bundles in

monocots are

scattered in the

stem, they _____

form a continuous

ring of vascular

cambium, and the

stem _____ grow

thicker.

Do not; cannot

Transpiration moves

water from _____ water

potential, and thus _____

cost energy.

High to low; does not

Because sugars and other

substances are selectively added

to and removed from phloem, its

cells are _____, and transport in

phloem _____ require energy.

Alive; does

 It was hypothesized that

the Tule tree was really

several trees that had

grown together. To test

this, botanists compared

DNA samples from

phloem

Because a vine or

liana takes ______

from its host, its stem

is ______ than would

otherwise be needed.

Support; thinner

The year before the rainy year indicated

was ___, and 4 years after it was ___.

Dry; rainy 

When cut,

about how old

(in years) was

this temperate

zone tree?

10

According to this model,

the most valuable use of

the forest for local people is

Intact forestThis is

This is

A stem with simple alternate

leaves

This tree has

Compound, opposite leaves

Which leaf (A-D)

most clearly shows

parallel venation?

B

The first order of

venation is ___ and

the last is ___

Palmate; netted

A pine needle is

A megaphyll

In the stem, the

xylem is _____ to

the phloem, so as

they branch into a

leaf, the xylem will

now be _____ the

phloem.

Internal; above

The function of stomata is to

Do all of the above

According to Moran

2006, different

Nepenthes species

may feed on all of the

following except

Molds

All of these

are modified

leaves except

c

The pH of South FL soils is

about 8.0. Based only on

pH, which nutrient below

would be the most available

here?

Ca (calcium)

The pH of South FL soils is

about 8.0. Based only on

pH, which nutrient below

would you most likely need

to add to the soil in your

South Florida garden ?

Fe

A strangler fig most likely

kills its host, if the host is

a cabbage palm, by

Shading its leaves

Orchids are

Xero-

phytes

The flow of carbon from grass to rabbits is

studied from the perspective of the

Ecosystem

The sexual strategy of Ficus sycomorus is best described as

Combined sexes (monoecy or hermaphroditism)

For a population to

persist, at least how

many surviving and

reproducing offspring

must each individual

produce, on average?

1

River catfish eat Ficus

sycomorus figs. The fish

migrate upstream and

sometimes happen to die on

the bank, and the fig seeds

grow. This relationship is

Mutualism (+/+)

What kind of

symmetry do

these flowers

have?

Bilateral

What kind of symmetry

does this flower have?

Radial

What kind of

symmetry does

this flower have?

Variable

(no symmetry)

What kind of

symmetry does

this flower have?

Radial

What kind of

symmetry does this

flower have?

Bilateral

What kind of

symmetry does

this flower have?

Bilateral

What kind of

symmetry does

this flower have?

Variable

(no symmetry)

These flowers

have ____ petals

and a(n) ____

ovary.

Reduced;

superior

These flowers

from the same

tree represent

the sexual

system of

Monoecy

This flower blooms during

the day. Its pollinator is

probably a

butterfly

This flower

blooms

during the

day. Its

pollinator is

probably a

bee

This flower

blooms

during the

day. Its

pollinator is

probably a

fly

This flower blooms

at night and is

sweetly fragrant

(Arabian tea

jasmine, Jasminum

sambac). Its

pollinator is

probably a

moth

This tree blooms at

night. The flower

cluster is large (~10

cm, 4” d.) and

produces a lot of

nectar. Its pollinator

is probably a

bat

Compared to being

transported by an animal

flying from flower to

flower, the probability of

a given pollen grain to be

blown from one flower

to another is ____, and

so wind pollinated plants

produce relatively ____

amounts of pollen.

Low, large

In an angiosperm, the

long-distance dispersal

stage(s) is/are the

Pollen and embryo

The embryo feeds

off the fruit

True

A plausible hypothesis (>1?)

for the advantage to a plant of

producing large seeds instead

of small ones might be:

Rapid seedling growth