Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
|
Whats a Taproot?
|
The first root that grows directly downwards of a plant; germinates at embryo.
-Single thick downward Root. Main biggest root - Goes deep to reach deep water -allows survival in dry areas/deep water areas |
|
|
What is a root radicle
|
The first root that a plant sends out is called a radicle.
|
|
|
What are Fibrous roots?
|
roots develop from base of stem. radicle dies.
- heavily Branched out. "adventitious roots" - good anchors for plant vs bad weather, herbivory - good anchors for soil erosion control |
|
|
What are Pop Roots
|
extend from stem for support of plant.
|
|
|
Root Primary functions?
|
- Absorb Nutrients from Soil
-Anchor plant to ground |
|
|
Alternative root functions?
|
-Store nutrients in Biennial spaces during the winter in ground and get harvested later.
|
|
|
Stems and leaves comprise...?
|
The "Shoot system" i.e. part above ground
|
|
|
Primary function of leaves /stem
|
-Provide structural frame work
- Leaves and branches oriented so that photosynthetic surfaces maximally exposed to Sun. -Water moves up through xylem -gas respiration through stomata. co2 in..O2 out. |
|
|
Alternative stem functions?
|
- Can serve as a photosynthetic source eg leafless plants
- "vines" can attach to anything for support - Potatoes (tubers) act as a modified storage stem - "Runner stem" aides in asexual reprodction. root joins stem. |
|
|
Leaf alternative functions?
|
- Teudrils attach plants to walls
- attract pollinating insects - Nutrient storage in bulbs - spines as a defense mech |
|
|
Calyx =
|
collectively sepals
|
|
|
Corolla =
|
collectively petals
|
|
|
Stamen =
|
Anther + filament
|
|
|
Anther produces?
|
Pollen grains
|
|
|
ovary produces
|
Ovules--> seeds--> fruit
|
|
|
Pistil =
|
all carpels together.
|
|
|
Carpel comprised of?
|
1) Stigma
2) Style 3) Ovary |
|
|
Stigma is where?
|
Plants are pollinated.
|
|
|
Flowers basic primary function =
|
Sexual reproduction
|
|
|
Fruits..
|
can be dry and light weight.
|
|
|
Fruit basic function =
|
disperse seeds
|
|
|
monocots vs dicots
|
monocots= embryo w/ 1 cotyledon i.e. seed leaf
Dicpots =2 cotyledon embryo |
