Lab 8a-Flowers (Angiosperms)

Question 1

Flowers are modified ___

Answer 1

leaves

Question 2

The calyx is a collective term for all the ___

Answer 2

all sepals

Question 3

The corolla is the collective term for all the ___

Answer 3

all petals

Question 4

The perianth consists of the ___ (sepals) and ___ (petals)

Answer 4

calyx, corolla

Question 5

The androecium is the collective term for all ___ parts of a flower consists of ___

Answer 5

male, stamens

Question 6

Each stamen is composed of a ___ and an ___

Answer 6

filament, anther

Question 7

The gynoecium is the collective term for all the ____ parts of the flower and consists of ___

Answer 7

female, carpels

Question 8

The carpel usually has a ___, ___(joining stigma and ovary), and the basal ___

Answer 8

stigma, style, ovary

Question 9

The ___ of a single ___ has one ___ (chamber), one set of ___, and one ___ (the region of the ___ where the ovules attach)

Answer 9

ovary, carpel, locule, ovules, placenta, carpel

Question 10

An ___ consisted of fused ___ will have more than one ___, sets of ___ and ___

Answer 10

ovary, carpels, locule, ovules and placentae

Question 11

The best indicator of the number of ___ is the number of ___ and sets of ___

Answer 11

carpels, placentae, ovules

Question 12

Placenta is the location of ___ attachment

Answer 12

ovule

Question 13

The four placentation types of flowers:

Answer 13

1. axile
2. parietal
   3.free central
   4.basal

Question 14

The evolutionary ancestral flower has ___ symmetry, numerous parts, and superior ___. The derived flower is ___ symmetric, with a ___ number of parts and an ___ ovary.

Answer 14

radial, ovary, bilaterally, reduced, ovary

Question 15

Flower Structure: ___ flowers tend to have ___ or ___ flower parts (petals, stamens) whereas ___ flowers tend to have multiple of ___ or ___ flower parts.

Answer 15

monocot, three, six, eudicot, four, five

Question 16

Is it possible to have a perfect incomplete flower

Answer 16

Yes; can have stamen and pistil present on same flower

Question 17

Is it possible to have an imperfect complete flower

Answer 17

no; cannot lack sepal or petal

Question 18

The pedicel is the ___ of an individual flower in an ___

Answer 18

stalk, inflorescence

Question 19

The peduncle is the ___ of a solitary flower or an ___

Answer 19

stalk, inflorescence

Question 20

The receptacle is the enlarged end of a flower ___ to which the ___, ___, ___ and ___ are attached

Answer 20

stalk, sepals, petals, stamens, carpels

Question 21

A complete flower is a flower in which all ___ floral parts (___, ___, ___, ___) are present

Answer 21

four, sepal, petal, stamen, carpel

Question 22

An ___ flower is a flower in which one or more of the four floral parts is ___

Answer 22

incomplete, missing

Question 23

A ___ flower is a single flower that has both ___ and ___

Answer 23

stamens, pistils

Question 24

An ___ flower is a flower which either the ___ or ___ are missing

Answer 24

imperfect, stamen, pistil

Question 25

A flower possessing only stamen (androecium; imperfect) is called a ___ flower

Answer 25

staminate

Question 26

A flower possessing only pistils (gynoecium; imperfect) is called a ___ flower

Answer 26

pistillate

Question 27

Both hypogynous and perigynous flowers have ___ ovaries; only epigynous flowers have ___ ovaries

Question 28

The microgametophytes (pollen) produce male ___ ( ___ cells)

Answer 28

gametes, sperm

Question 29

Each pollen grain contains a ___ and a ___ cell containing two nuclei

Answer 29

vegetative, generative

Question 30

The two nuclei are the __ nucleus, which produces the ___ ___, and the ___ nucleus, which produces the two ___ cells

Answer 30

tube, pollen tube, generative, sperm

Question 31

Are the microsporocytes haploid or diploid

Answer 31

haploid (n)

Question 32

Tapetal cells function in ___ development, providing nutrition to the ___ ___ (all used up by maturity)

Answer 32

pollen, pollen grains

Question 33

How many cells make up the mature pollen grain? What are their names?

Answer 33

two; generative, vegetative

Question 34

How does the pollen of angiosperms differ from the pollen of conifers?

Answer 34

angiosperms are insect pollinated, gymnosperms are wind pollinated

Question 35

The most common variation in megagametophyte development in angiosperms is called the ___ form

Answer 35

monosporic

Question 36

In conifers, the pollen lands directly on or in the ___ and the pollen tube only has to grow through the ___ to the megagametophyte. In anthophytes, the pollen tube has a much ___ trip . It lands on the surface of the___ and must grow through the ___, ___, ___ wall and then into the ___

Answer 36

ovule, megagametophyte, longer, stigma, stigma, style, ovary, ovule

Question 37

*unique in angiosperms* Double fertilization in monosporic megametophyte development is the fusion of one male ___ with the ___ forming the ___ and a second male ___ with the two ___ nuclei forming the ___

Answer 37

nucleus, egg, zygote, nucleus polar, endosperm

Question 38

The ploidy of the zygote in a monosporic megametophyte development is ___

Answer 38

triploid (3n)

Question 39

What is the ploidy of the primary endosperm in tetrasporic megametophyte development?

Answer 39

5n

Question 40

What is the function of the endosperm in a monosporic megametophyte

Answer 40

support embryonic growth; supplies nutrients and protection

Question 41

What will each ovule develop into following fertilization in a monosporic megametophyte

Answer 41

seed

Question 42

What will each ovary develop into following fertilization in a monosporic megametophyte

Answer 42

fruit