specialized root

Question 1

food storage

Answer 1

food can be stored in tap roots or branched roots.
Irish potatoes, beet, sweet potato, carrots, turnips

Question 2

water storage

Answer 2

some plants specialized for storing water.
Ex: manroot (wild cucumber)

Question 3

propagative

Answer 3

roots grow up as new stems (adventitious shoot)

ex: lilac suckers, canada thistle

Question 4

pneumatophore

Answer 4

roots have a large knob full or aerenchyma? which is full of oxygen, so helps the roots to breathe
black mangrove

Question 5

aerial roots

Answer 5

adventitious roots that stick out of stem

ex: ivy hanging onto a tree

Question 6

contractile roots

Answer 6

have roots that plant themselves, contract to grow deeper

Question 7

buttress roots

Answer 7

large roots in tropical tree to stabilize tree

Question 8

parasitic roots

Answer 8

haustoria penetrate into plant and get nutrients
ex: dodder, pine drop has parasitic roots under ground, mistletoe,

Question 9

indian pipe

Answer 9

lives off of decaying material

Question 10

root nodules

Answer 10

bacteria attach to root hair, penetrate into cortex, cortex grows a “tumor” (nodule).
This tumor has bacteria, shipping down sugar to the tumor and the bacteria consumes and provides fixed N2 through ammonia (fertilization)

Question 11

phytochrome

Answer 11

in leaf: help to measure day length for seasonality in plants

in roots: taproot in arabidopsis is like a fiberoptic cable conducting light under the ground. Channels light to the roots, which is linked to stimulation in root growth

Question 12

humas use of roots:

Answer 12

food: eat for food
spices: sassafras, ginger
alcohol: potatoes for tequila
drugs: nicotine of tobacco plants
insecticide/fish poison: rotenone