Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Botany_19__
| Question | Answer |
|---|---|
| calyx | whorl of sepals |
| flower | determinate shoot with sporophylls (sporangium bearing modified leaves) |
| corolla | whorl of petals |
| perianth | calyx + corolla |
| androecium | whorl of male structures, microsporophylls |
| stamen | filament + anther |
| gynoecium | whorl of female structures, megasporophylls (folded lengthwise) |
| another name for stamen | microsporophyll |
| another name for carpel | megasporophyll |
| compound carpel | possesses two or more locules |
| simple carpel | possesses only one locule |
| tepals | sepals and petals that look the same |
| bracts | attached below sepals (calyx) on stalk of flower (may be leaf-like or showy and colorful |
| complete flower | contains all four whorls of parts (i.e. - calyx, corolla, androecium and gynoecium) |
| incomplete flower | lacks one or more whorls of parts |
| perfect flower | bisexual (includes both stamens and carpels) |
| imperfect flower | unisexual (lacks either stamens or carpels) |
| staminate | describes an imperfect flower with stamens (male flower) |
| carpellate | describes an imperfect flower with carpels (female flower) |
| monoecious ("one house") | separate male (staminate) and female (carpellate) flowers are on the same plant |
| dioecious ("two houses") | male and female flowers are on separate plants |
| hypanthium | floral tube, bases of sepals, petals, and filaments fused together |
| floral morphology | radial, bilateral, asymmetrical |
| inflorescence | cluster of flowers |
| placentation | arrangement of placentae |
| parietal | ovules borne on ovary wall |
| axile | ovules on central column of tissue in partitioned ovary |
| free central | ovules on central column, no partitions |
| microgametophyte | pollen grain (3 cells at maturity - tube cell and two sperm cells), no antheridia |
| megagametophyte | embryo sac, 7 cells (8 nuclei) at maturity), no archegonia |
| microsporogenesis | microsporocyte (2n - mother cell) undergoes meiosis to produce 4 haploid (n) microspores |
| tapetum | nutritive tissue (2n), ads lipid-rich coat to pollen grain |
| microgametogenesis | development of multicellular pollen grain |
| immature microgametophyte | microspore divides by mitosis and produces tube cell and generative cell |
| exine | resistant outer wall composed of sporopollenin |
| intine | inner wall composed of cellulose and pectin |
| mature gametophyte | generative cell divides by mitosis to form haploid sperm (2 sperm, 1 tube cell) and may be rich in starch and oils (good food source for insects) |
| megasporogenesis | formation of megaspore inside nucleus (takes place in ovule) |
| megasporogenesis | microspore mother undergoes meiosis to form 4 haploid megaspores (only 1 functional) |
Created by:
Nicolekr
Popular Biology sets