Flower Flashcards
Where is flower found?
Leaf axil
Does flowers undergo secodnary growth?
No
What are the parts of a complete flower?
Sepal, Petal, Stamen, Carpel (Pistil)
Stalk that connects the flower to the stem
Pedicel
This is the stalk of an entire inflorescence
Peduncle
Very end of the axil where flower parts are attached.
Receptacle
What do you call the part of a flower that is not part of the reproduction
Sterile
Lowermost and outermorst of the four whorls
Sepals
This whorl may be thick and waxy to protect the plant from dessication
Sepal
Collective name for sepals
Calyx
One of the four whorls that is above the sepal of the receptacle
Petals
Collective name for petals
Corolla
Collective name for petals and sepals
Perianth
Is involvucre the receptacle of an inflorescence?
No
What do you call the outer whorl when you cannot differentiate the sepal and petals?
Tepals
What do you call the collective term of stamen
Androecium
What produces the pollen of the flower?
Stamen
What do you see inside an anther
Four long columns of pollen sacs
What do you find inside the pollen sac?
Microspore
What do pollen sacs contain?
Pollen grain
Gives nourishment to cells forming to be pollen grain.
Tapetum
It is an immature endosporic male gametophyte
Pollen
Two layers of a pollen?
Exine and Intine
What synthesizes the exine?
Tapetum
The outer layer of a pollen that consists of a polymer sporopollenin
Exine
shields the DNA in pollen and spores from light, heat, cold and desiccation.
Sporopollenin
What is the intine composed of?
Celluloase and pectin
The inner layer of pollen
Intine
The basic unit of gynoecium
Carpel part of the gynoecium composed of an ovary, one or more style
Refers to the collective term for all female organss mo of the flower
Gynoecioum
Catches the pollen grain
Stigma
This elevates the stigma in advantageous position
Style
This is where megaspores atr produced
Ovary
Regions of tissue that bear the ovules
Placentae
What connects the ovule to the placenta?
Funiculus
Seeds attached to placenta via ?
nucellus
Radial symmetry
○ a.k.a. regular flowers
Actinomorphic
Bilateral symmetry two planes only
zygomorphic
lack any plane of symmetry
Asymmetrical
A collection nor aggregation of flowers on individual plant
inflorescence
type of inflorescence that Terminal flower usually opens first
Determinate
type of inflorescence that Lowest and outermost flowers open first
Indeterminate
example of raceme
orchid
Spike-like inflorescence with
imperfect flowers that occur in the
same inflorescence has a spathe = petal-like bract
spadix
lower stalks are proportionally
longer so that the flowers form a
flat or slightly convex head
corymb
Similar to raceme, but the flowers
have no pedicel
spike
Examples of spadix:
Spathiphyllum wallisii
Arecaceae
Examples of panicle
Mangifera indica
Example of spike
triticum aestivum
Example of plants that are apomixis
Garcinia mangostana
Hieracium pilosella
rutaceae
citrus microcarpa
what is the outcome of the ovary as it develops?
fruit
What happens with the 2 sperms produced by microgametophyte
1 fertilizes the egg cell (2n)
one fertilized the polar nuclei (3n)
What is the outcome of the ovule as it develops
seeds
this is the form of asexual reproduction where the development of an embryo does not need fertilization
apomixis
What cell of the microspore undergoes mitosis?
generative cells.
refers to the
development of megaspores from the megasporocyte
megasporogenesis
is development of
the female gametophyte from the haploid product(s) of meiosis
megagametogenesis
What happens to the pollen tube nucleus, the
other synergid, and the antipodal cells after
fertilization?
degenerate
this direct the pollen tube and it
enters the micropyle
synergids
this is obtaining a portion of a leaf, stem, or
root, and replanting it
cutting
new individual develops from some
generative anatomical point of the
parent organism
budding
combining a scion of one plant and
connecting it to the stock of another
grafting
tissue culture or cell culture techniques
micropropagation
3 types of layering
air layering, simple layering and mound layering
give monoecious plants
- Zea mays
- Cucumis sativus
- Artocarpus heterophyllus
give dioecious plants
- Asparagus officinalis
- Carica papaya
- Ginko biloba
example of determinate inflorescence
Jasminum sambac