unit 10 plant systems Flashcards
1
Q
root system
A
- absorbs water/nutrients from soil
- anchors plant to ground
2
Q
vascular system
A
xylem - transports water from roots upward
phloem - transports nutrients from leaves throughout (mostly downward)
3
Q
shoots system
A
stems - provide structure to leaves to collect sunlight
leaves - undergo photosyntesis & act as site for gas exchange
**flowers (cones) **- contain repro structures
4
Q
female repro part
A
pistil
5
Q
female
ovary
A
contains ovules/eggs
6
Q
female
style
A
contains ovary & stigma
7
Q
female
stigma
A
collects pollen
8
Q
male repro part
A
stamen
9
Q
male
filament
A
holds up anther
10
Q
male
anther
A
produces pollen
11
Q
A
12
Q
pollination
A
pollen (male) fertilizes ovum (female) to form a seed (zygote)
happens by:
- self cross
- animals
- wind
13
Q
```
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function of petals
A
attract pollinators
14
Q
cuticle
A
- waxy, protective coating
- surrounds epilethelial tissue of leaves
- adaptation - prevents excessive water loss
15
Q
stomata
A
- water loss & gas exchange (CO2, O2, water vapor)
- guard cells opening/closing of stomata
- guard cells close when water is scarce
