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HGTC BIO 102 > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

A mature, unfertilized ovule in an angiosperm is the result of ______

A

Both meiosis and mitosis

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2
Q

At the conclusion of meiosis in plants, the end products are always four ______.

A

Spores

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3
Q

Correct sequence of alternations of generations in flowering plants

A

Sporophyte -> meiosis -> gametophyte -> gametes -> fertilization -> diploid zygote

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4
Q

Mitosis occurs in gametophytes to produce gametes, meiosis occurs in sporophytes to produce spores, and the gametophyte is within the flower in angiosperms. TRUE OR FALSE?

A

True

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5
Q

True or false of angiosperms:

They have triploid endosperm within the seed and ovary that becomes a fruit

A

True

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6
Q

The ovary is most often located in/on the ______.

A

Carpel

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7
Q

Microsporangia in flowering plants are located in the ______.

A

Stamen

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8
Q

Correct order of floral organs from outside to inside

A

Sepals->petals->stamens->carpels

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9
Q

All of the following are primary functions of the flower except.

  • photosynthesis
  • sexual reproduction
  • pollen production
  • egg production
  • meiosis
A

Photosynthesis

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10
Q

Meiosis occurs within all of the following flower parts except the ______.

  • ovary
  • anther
  • megasporangium
  • ovule
  • style
A

Style

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11
Q

Female gametophytes develop from megaspores within the anthers. TRUE OR FALSE?

A

false

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12
Q

In flowering plants, pollen is released from the ______.

A

anther

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13
Q

In the life cycle of an angiosperm, which of the following stages is diploid?

A

microsporocyte

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14
Q

Where does meiosis occur in a flowering plant?

A

megasporocyte and microsporocyte

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15
Q

Sequence of processes that takes place when a flowering plant reproduces

A

meiosis -> pollination -> nuclear fusion -> formation of embryo and endosperm

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16
Q

which of the following is incorrectly pair with its life-cycle generation?

  • stamen-sporophyte
  • embryo-sporophyte
  • anther-gametophyte
  • pollen-gametophyte
  • embryo sac-gametophyte
A

*anther-gametophyte

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17
Q

Correct sequence of events in a pollen sac?

A

microsporocyte-> meiosis-> microspores->mitosis->two haploid cells per pollen grain

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18
Q

Where and by which process are sperm cells formed in plants?

A

Mitosis, and in male gametophyte pollen tube

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19
Q

in which of the following pairs are the two terms equivalent?

  • endosperm-male gametophyte
  • ovule-egg
  • microspore-pollen grain
  • embryo sac-female gametophyte
  • seed-zygote
A

*embryo sac-female gametophyte

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20
Q

Which of the following would be considered a multiple fruit?

  • raspberry
  • apple
  • pineapple
  • corn on the cob
  • strawberry
A

-pineapple

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21
Q

Three mitotic divisions within the female gametophyte of a flowering plant will produce ______.

A

three antipodal cells, two polar nuclei, one egg, and two synergids

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22
Q

What is the difference between pollination and fertilization in flowering plants?

A

Pollination is the transfer of pollen from an anther to a stigma. Fertilization is the fusion of haploid nuclei.

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23
Q

The structure of a mature, functional fruit always includes ______.

A

one or more seeds

24
Q

What is the result of double fertilization in angiosperms?

A

Both a diploid embryo and triploid endosperm are formed

25
Which of the following "vegetables" is botanically a fruit? - celery - potato - radish - green beans - lettuce
Green beans
26
Fruits develop from ______.
Ovaries
27
What type of plant is incapable of self-pollination?
Dioecious
28
True of False? Vegetative reproduction produces clones of the parent plant?
True
29
What characteristic helped seedless plants better adapt to life on land?
Stomata
30
What taxa does the mature sporophyte depend completely on the gametophyte for nutrition?
Bryophyta
31
How have fruits contributed to the success of angiosperms?
Seed dispersal
32
Dominant generation of ferns?
sporophyte
33
What part develops into the pulp of a fleshy fruit?
Ovary
34
What feature is unique to angiosperms and helps them account for their success?
fruits enclosing seeds
35
True or false? The flower includes sporophyte tissue
True
36
Which of the following can be found in gymnosperms? - pollen - carpels - triploid endosperm - fruits - non-fertile flower parts
pollen
37
What is the seed coats most important function?
protection for the embryo
38
A small flower with green petals is most likely?
wind-pollinated
39
what is the difference between algae and charophytes
charophytes protect their zygote, algae do not
40
Dominant generation in mosses
gametophyte
41
dominant generation in ferns
sporophyte
42
are mosses vascular or non-vascular?
non-vascular
43
Another name for fern gametophyte
prathallus
44
Dominant generation in conifers (gymnosperms)
sporophyte
45
monoecious
a single plant produces both male(pollen) and female (seed cones)
46
TRUE OR FALSE? angiosperms are flowering plants
TRUE
47
What is a complete flower?
a flower that has all 4 parts (sepals,petals,stamens,and carpels)
48
Perfect flower?
has both stamens and carpels
49
Inflorescence?
cluster of flowers
50
composite?
appears to be a single flower but consists of a group of tiny flowers
51
monocots come in multiples of ______.
3
52
Eudicots come in multiples of ______.
4 or 5
53
The endosperm of a flowering plant is _____.
triploid
54
Epigeal germination location
cotelydon goes above the soil
55
Hypogeal germination location
cotelydon stays in the soil

HGTC BIO 102 (5 decks)

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