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 7
Meristem Morphology; Flower Morphology
| Question | Answer |
|---|---|
| If you are shown a micrograph of an apical meristem, how would you determine whether it is from a root or a shoot? | Whether it has node/internode structure |
| When a meristematic cell divides, it produces an initial cell and a ___ cell. If this cell is part of the procambium, it could later differentiate into ___ xylem or phloem. | Derivative; Primary |
| What happens to the initial cell produced from a dividing meristem cell? Does it continue to divide? | Yes, it divides and produces new cells |
| How might you recognize a plant that has secondary growth? | It is girthy and woody |
| Do you understand how, in a perennial woody dicot, the discrete vascular bundles that are found in the new seedling stem become continuous rings of xylem and phloem in the 3 year old woody stem? | A thin layer of parenchyma cells between the xylem and phloem has differentiated into the fascicular cambium. This is meristematic and produces phloem to the outside and xylem to the inside (secondary) |
| Why will a tree die if its bark is chopped off? | It disrupts the ability of the plant to move sugars through the trunk of the tree, exposes it to moisture loss and predator invasion, kills the vascular cambium through desiccation (halts production of new xylem) |
| What is the receptacle? | Base of the flower where floral parts are attached |
| What whorls do these originate from: Calyx Corolla Androecium Gynoecium | 4th whorl; Sepals 3rd whorl; Petals Second node ("Men's house") First node (Women's house") |
| What is the relationship between a whorl and a node? How does this contribute to the concept that a flower's corolla is made up of modified leaves? | A whorl is a node on the receptacle, 4 on flowers; Leaves originate at nodes |
| What is the parianth made up of? | The calyx and corolla |
| Sperm are produced from microspores contained in what plant part? To which whorl is this part attached? | Microsporangia and anther; Attached to the androecium whorl |
| Eggs are produced from megaspores contained in what plant part? To which whorl is this part attached? | Inside an embryo sac in the ovules; Attached to the gynoecium whorl |
| In what way does the filament of the stamen have an architectural function? How might this make a difference in the plant's reproduction? | It lifts the anther to a position where it can effectively release pollen grains into/onto the pollinator |
| Which floral characteristics favor cross-pollination? | Chasmogamous: Anther matures after flower opens and pollen is shed before the stigma is receptive |
Created by:
kylee1542
Popular Agriculture sets