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HGTC BIO 102 > Exam 2 > Flashcards

Exam 2 Flashcards

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Biology 101 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
Q

Which of the following “vegetables” is botanically a fruit?

  • celery
  • potato
  • radish
  • green beans
  • lettuce
A

Green beans

26
Q

Fruits develop from ______.

A

Ovaries

27
Q

What type of plant is incapable of self-pollination?

A

Dioecious

28
Q

True of False? Vegetative reproduction produces clones of the parent plant?

A

True

29
Q

What characteristic helped seedless plants better adapt to life on land?

A

Stomata

30
Q

What taxa does the mature sporophyte depend completely on the gametophyte for nutrition?

A

Bryophyta

31
Q

How have fruits contributed to the success of angiosperms?

A

Seed dispersal

32
Q

Dominant generation of ferns?

A

sporophyte

33
Q

What part develops into the pulp of a fleshy fruit?

A

Ovary

34
Q

What feature is unique to angiosperms and helps them account for their success?

A

fruits enclosing seeds

35
Q

True or false? The flower includes sporophyte tissue

A

True

36
Q

Which of the following can be found in gymnosperms?

  • pollen
  • carpels
  • triploid endosperm
  • fruits
  • non-fertile flower parts
A

pollen

37
Q

What is the seed coats most important function?

A

protection for the embryo

38
Q

A small flower with green petals is most likely?

A

wind-pollinated

39
Q

what is the difference between algae and charophytes

A

charophytes protect their zygote, algae do not

40
Q

Dominant generation in mosses

A

gametophyte

41
Q

dominant generation in ferns

A

sporophyte

42
Q

are mosses vascular or non-vascular?

A

non-vascular

43
Q

Another name for fern gametophyte

A

prathallus

44
Q

Dominant generation in conifers (gymnosperms)

A

sporophyte

45
Q

monoecious

A

a single plant produces both male(pollen) and female (seed cones)

46
Q

TRUE OR FALSE? angiosperms are flowering plants

A

TRUE

47
Q

What is a complete flower?

A

a flower that has all 4 parts (sepals,petals,stamens,and carpels)

48
Q

Perfect flower?

A

has both stamens and carpels

49
Q

Inflorescence?

A

cluster of flowers

50
Q

composite?

A

appears to be a single flower but consists of a group of tiny flowers

51
Q

monocots come in multiples of ______.

A

3

52
Q

Eudicots come in multiples of ______.

A

4 or 5

53
Q

The endosperm of a flowering plant is _____.

A

triploid

54
Q

Epigeal germination location

A

cotelydon goes above the soil

55
Q

Hypogeal germination location

A

cotelydon stays in the soil

HGTC BIO 102 (5 decks)

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