unit 10 plant systems

Question 1

root system

Answer 1

• absorbs water/nutrients from soil
• anchors plant to ground

Question 2

vascular system

Answer 2

xylem - transports water from roots upward
phloem - transports nutrients from leaves throughout (mostly downward)

Question 3

shoots system

Answer 3

stems - provide structure to leaves to collect sunlight
leaves - undergo photosyntesis & act as site for gas exchange
**flowers (cones) **- contain repro structures

Question 4

female repro part

Answer 4

pistil

Question 5

female

ovary

Answer 5

contains ovules/eggs

Question 6

female

style

Answer 6

contains ovary & stigma

Question 7

female

stigma

Answer 7

collects pollen

Question 8

male repro part

Answer 8

stamen

Question 9

male

filament

Answer 9

holds up anther

Question 10

male

anther

Answer 10

produces pollen

Question 12

pollination

Answer 12

pollen (male) fertilizes ovum (female) to form a seed (zygote)

happens by:
- self cross
- animals
- wind

Question 13

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function of petals

Answer 13

attract pollinators

Question 14

cuticle

Answer 14

• waxy, protective coating
• surrounds epilethelial tissue of leaves
• adaptation - prevents excessive water loss

Question 15

stomata

Answer 15

• water loss & gas exchange (CO2, O2, water vapor)
• guard cells opening/closing of stomata
• guard cells close when water is scarce

Question 16

thigmotropism

Answer 16

touch

Question 17

gravitropism (geotropism)

Answer 17

gravity

Question 18

phototropism

Answer 18

light

Question 19

hydrotropism

Answer 19

water