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Flashcards in Kingdom: Plantae Deck (64)
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31

Name there toes of plant hormones?

Auxins
gibberellins
cytokinins.

32

What is an Auxin

A plant growth hormone that controls cell elongation.

33

What is Gibberellin?

A plant hormone that causes elongation of plant stems.

34

What is Cytokinin?

A plant hormone that promotes cell division in growing tissue.

35

What is phytochrome?

A plant pigment that absorbs light and is involved with photoperiodism.

36

What is a blade?

A broad portion of a leaf.

37

What is a petiole?

The stalk that connects the leaf blade to the stem.

38

What is a bud?

A mound of growing tissue between the base of a petiole and the leaf stem; may give rise to a branch shoot.

39

What is Bark?

All tissues outside of the vascular cambium in a woody stem. (cross-section of tree shown; bark is outermost ring)

40

What is a root hair?

Single cell extensions of plant epidermal cells; they absorb water and minerals.

41

What are Tubers?

An underground stem modified for food storage.
Examples
potato
yam
turnip
carrot.

42

What are Sori?

Tiny brown sport cases located on the underside of the elves of true ferns.

43

What are gametophytes?

A haploid plant that produces gametes by mitosis.

44

What is a sporophyte?

A diploid plant that produces spores by meiosis.

45

What is a carpel?

The female reproductive organ of a flower; consists of the ovary; the style; and the stigma. Also called the pistil.

46

What is an Ovule?

A structure in seed plants that develop in the ovary and contain the egg.

47

What is the stigma?

In angiosperm flowers, the stigma is the region of the carpel that is the receiving surface for the pollen.

48

What is the Stamen?

The pollen - producing (male) organ of a flower; consisting of an anther and a filament.

49

What is Pollen?

A grain containing an immature male gametophyte enclosed in a protective outer covering.

50

What is pollination?

The transfer of pollen from an anther to a stigma can be by wind, water, animals etc.

51

What is an annual?

A seed plant that completes its life cycle in one year.
Eg. Wheat, beans, cotton and marigold.

52

What is an biennial?

A plant that completes its life cycle in two years.
eg Carrots and foxgloves.

53

What is a perennial?

A plant whose life cycles is several years; it produces flowers on more than one occasion.
most trees, flowers and shrubs.

54

what does deciduous mean?

Plants that shed their leaves during certain seasons.
eg. maple, and oak trees.

55

What are Bryophyta?
Class: Hepaticae (liverworts)

Flat leaf-like structure.
simple root-like structures.
Example Marchantia.

56

What are Bryophyta?
Class: Musci (mosses)

small, usually erect with stem.
capsule contains spores.
Example: sphagnum.

57

What are Tracheophyta?
Subphylum: Lycopsids.

Creeping stems.
Examples: club moss, ground pines.

58

What are tracheophyta.
Subphylum: sphenopsids.

Scale-like leaves.
Spores in cone-like structures.
Examples: equisetum, scouring rush.

59

What are Tracheophyta?
Class: Filicineae (true ferns)

Spores on leaves or special structures.
Examples: royal fern, Boston fern.

60

What are Tracheophyta?
Class: Gymnosperms?

Naked seeds, often in cones; needle - like leaves; mostly evergreen, but some deciduous (e.g., larch). Examples; pine, hemlock, spruce.