Final Exam: Portion V

Botany 300 with Otegui at University of Wisconsin - Madison

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By: Whitney Beilke
Created: 2010-12-20
Size: 34 flashcards
Views: 13

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monosporic development -- which type of ovule?

polygonum type

fruit

ovary + other floral parts after fertilization

ovule matures to what?

seed

ovary matures to what?

fruit

parthencarpy

the development of fruit without fertilization; fruits are usually seedless

ovary maturation into fruits -- changes occur where? what three changes occur?

in the ovary wall
1. cell division and elongation
2. formation of secondary cell walls
3. acquisition of colors

fruits are involved with what role?

seed dispersion

pericarp

the wall of a fruit which develops from the ovary wall

pericarp is made up of what three components?

1. epicarp/exocarp
2. mesocarp
3. endocarp

single flowers can be classified into what twp types of fruits?

simple fruits and aggregate fruits

simple fruit

only one carpel or a syncarpous gynoecium

aggregate fruit

consists of several to many separate carpels of a single flower

multiple fruit - come from what types of flowers? what is it?

influorescence -- consists of fused ovaries of several to many flowers

Berry -- definition and example

endocarp and a fleshy mesocarp, the exocarp is skin-like, and there are one or many seeds -- ex. grapes and tomato

hesperidium -- definition and example

axile placentation; glandular endocarp and it is derived from a superior ovary (type of berry) ex. -- Orange

Pepo -- definition - and example

type of berry with axile placentation that is derived from an inferior ovary

Ex. pumpkin or squash

drupe - definition and example

generally one-seeded; woody endocarp, fleshy mesocarp, and skin like exocarp --- ex. peach

pome - defintion and example

derived from inferior ovary, fleshy extracarpellary tissue

ex. apple

what is the fleshy part of the fruit?

the hypanthium

function of the transmitting tissue in the style?

guides pollen tube to the ovary and provides nutrition, adhesion, and defense against the pathogens for the pollen grain

what cells guide the pollen tube ot the micropyle?

the synergids

filliform apparatus

the cell walls of the synergids facing the micropyle are very convoluted so that the pollen tubes can reach

how does the pollen tube know where to go?

the synergids cell walls secrete a signal molecule to lead pollen tubes

synergids -- do they die?

yes when the pollen tubes come into contact with them, the pollen tube grows in the synergid until it bursts and the male gametes are free

when the synergids burst and the male gametes are free -- where do they go?

one gamete fertilizes the egg and the other fuses with the polar nuclei (double fertilization)

what happens to the antipodals during double fertilization??

they die

three functions of the endosperm

1. nourishment of the embryo during development or germination
2. protection of the embryo
3. may impose dormancy on embryos

what are the four seed storage compounds?

1. proteins
2. minerals
3.carbohydrates
4. lipids

proteins are stored where in the seed?

in protein storage vacuoles or protein bodies

minerals are stored where in the seed?

in phytin crystals (globoids)

carbohydrates are stored where in the seed?

in starch or cells wall polysaccharides

lipids are stored where in the seed?

in lipid bodies

epigeous germination

cotyledons are lifted above ground in germination (epicotyl emerges above ground)

hypogeous germination

cotyledons germinate underground then push their way above (epicotyl emerges below ground)

About this deck

By: Whitney Beilke
Created: 2010-12-20
Size: 34 flashcards
Views: 13

About StudyBlue

“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis