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Grade 11 Biology 24 - module one > unit 2- biodiversity of plants > Flashcards

unit 2- biodiversity of plants Flashcards

1
Q

four divisions into which the kingdom plantae are divided

A

-Bryophytes
-Pteridophytes
-Gymnosperms
-Angiosperms

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2
Q

the phenomenon where generations alternate in that one generation gives rise to the other

A

-Alternation of generations

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3
Q

what’s the generation which is sexual and produces gametes

A

-Gametophyte generation

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4
Q

which generation is asexual and produces spores

A

-Sporophyte Generation

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5
Q

what is the plant division which includes mosses, liverworts and hornworts

A

-Bryophytes

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6
Q

What is the dominant generation in the life cycle of mosses

A

-gametophyte generation

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7
Q

what is the name given to a plant where true roots, stems and leaves cannot be distinguished

A

thallus

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8
Q

What is the cap that covers the sporangium in bryophytes called

A

-calyptra

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9
Q

what is the plant division including all ferns

A

-Pteridophytes

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10
Q

what is the dominant generation in the life cycle of ferns

A

-sporophyte generation

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11
Q

what is the horizontal underground stem occurring in most ferns

A

-rhizomes

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12
Q

what is the vascular tissue present in ferns

A

-xylem and phloem

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13
Q

what are the clusters of sporangia found on the underside of fern leaves

A

-sori

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14
Q

what is the heart shaped structure that germinates from a spore of a fern and represents the gametophyte generation

A

-prothallus

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15
Q

what is the collective name given to the seed bearing plant groups, Gymnosperms and Angiosperms

A

-Spermatophytes

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16
Q

what is the plant division including conifers and cycads

A

-gymnosperms

17
Q

what is the dominant generation in the life cycle of the pine

A

-sporophyte generation.

18
Q

what are the structures bearing pollen sacs containing pollen grains in the pine

A

-male cones

19
Q

what are the structures in which the pine trees ovules are carried

A

-female cones

20
Q

what is the structure representing the male gametophyte in the pine

A

-germinating pollen grain

21
Q

what is the structure representing the female gametophyte in the pine

A

-embryo sac

22
Q

what is the structure into which the fertilised ovule develops

A

-seed

23
Q

what is the term describing the seed of the pine not enclosed by an ovary

A

-naked

24
Q

what is the seed bearing plant group with flowers

A

-Angiosperms

25
Q

what is the structure which encloses the seed of a flowering plant and develops into a fruit

A

-ovary

26
Q

what are the two groups into which angiosperms are divided

A

-mono and dicotyledons

27
Q

what is the dominant generation in the life cycle of flowering plants

A

-sporophyte generation

28
Q

what are the roots which develop from any plant organ except another root

A

-adventitious roots

29
Q

what are the roots which develop out of other roots

A

-lateral roots

30
Q

what is the type of venation found in the leaves of the monotyledonous plants

A

-parallel venation

31
Q

what is the type of venation found in the leaves of the dicotyledonous plants

A

-net venation

32
Q

what is the stamen whorl in flowering plants

A

-androecium

33
Q

what is the pistil whorl in flowering plants

A

-gynoecium

34
Q

what is the perianth (flower whorl) in monocotyledonous flowering plants

A

-perigone

35
Q

what is the structure inside the ovule of a flowering plant containing the egg cell and two polar nuclei

A

-embryo sac

36
Q

what is the party of the germinating seed of the flowering plant that gives rise to the root system

A

-radicle

37
Q

what is the part of the germinating seed that gives rise to the stem of the new flowering plant

A

-plumule

Grade 11 Biology 24 - module one (21 decks)

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