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
HORT1001 Wk 9
Seed Morphology; Seed Physiology
| Question | Answer |
|---|---|
| What is the embryo axis? | Embryonic root and shoot |
| What is the epicotyl? | Part of the embryo's axis above the cotyledon |
| What is the hypocotyl? | Part of the embryo's axis below the cotyledon |
| What part is derived from the cell resulting from the fusion of the egg and the sperm? | The embryo |
| Describe why apomixis results in a seed that is actually a form of asexual propagation | Develops solely from maternal tissue; vegetative cells in flower develop into zygotes to form seeds |
| Of the tissues making up the embryo axis (plumule, epicotyl, hypocotyl, radicle) which are shoot tissue and which are root tissue | Shoot tissue: Plumule, epicotyl, and hypocotyl Root tissue: Radicle |
| What seed structure(s) contains carbohydrates? | Cotyldons |
| When you eat green beans or snow peas as a (culinary) vegetable, are you eating pericarp or seed coat or both? | Both, Ovule wall is the seed coat; Ovary wall is the pericarp |
| What external factors are required for germination? | Water, oxygen, sunlight, temperature |
| Outline the process through which the seed's embryo receives useful energy from the starch stored in the cotyledon or endosperm. | Respiration converts the starch stored in the endosperm or cotyledon into Adenosine triphosphate used in apical meristems and the radicle for cell division |
| What are the factors required for successful long term seed storage? How do these compare to the factors required for germination? | Dry, cold, no oxygen; Germination can be restricted by limiting an external factor |
| What are the different types of dormancy? | Endodormancy: Temperate plants, internal biochemical processes, first stage Ectodormancy: External factors aren't being met |
| How do you encourage germination in a seed with ectodormancy? | Change conditions to be optimal for germination |
| Fluffy fibers attached to seeds that let them fly and burrs that get caught on animal coats are adaptations used by seeds for: | Dispersing the seed |
| The epicotyl is ______ tissue. | Shoot |
| The cotyledon is ______ tissue. | Shoot |
| The radicle is ______ tissue. | Root |
| The hypocotyl is ______ tissue | Shoot |
| If a quiescent, but not dormant, seed is planted in the soil, and has appropriate growing conditions, it begins to respire. What does respiration provide to the germinating seed? | ATP |
| Fatty acids are components of: | Lipids |
| What seed structure(s) store carbohydrates important for germination and initial seedling growth? | Cotyledon and endosperm |
| Short term seed storage at home typically focuses on limiting which condition required for germination? | Water |
| Dormancy is a strategy used by seeds primarily for: | Surviving harsh conditions |
| Immature tissue versus seed structure Egg Ovule wall Ovary wall 2 polar nuclei and sperm | Embryo Seed coat Pericarp Endosperm |
| The cotyledons attachment point to the embryo axis is the: | Transition zone between hypocotyl and epicotyl |
| Scarification is used to: | Break impermeable seed coat |
| Starch is made up of: | A chain of glucose |
Created by:
kylee1542
Popular Agriculture sets