Chapter 13 Flashcards
What is the proper order for the movement of water through a plant?
root hair, root, xylem, stomata
Do roots have a spongy layer?
No
Which cells regulate the size of the stomata?
guard cells
If a plant’s guard cells malfunction what will happen?
the plant might suffer excessive water loss
Which layer is under the upper epidermis and is made up of tall, thin, closely packed cells?
palisade layer
Plant hormones are used to ___________
kill weeds, root cuttings and control fruit ripening
True or False
Nearly all plant cells carry on aerobic cellular respiration.
True
True or False
Plants store energy only as starch.
False
True or False
The vascular cambium is a growth region in plants
True
True or False
A plant’s stem exhibits negative gravitropism
True
True or False
Plants can move
True
True or False
Phytochrome is associated with tropisms
False
A growth response of plants to their environment
tropism
A plant’s response of growing away from a factor
negative tropism
A plant’s response to growing toward a factor
positive tropism
reversible, repeatable plant movements
nastic
a plant’s growth response to gravity
gravitropism
a plant’s growth response to light
phototropism
plants that bloom when nights are long
short-day plants
a plant’s response to auxin
elongation
a plant’s response to the length of time it is exposed to light
photoperiodism
plants that bloom whenever moisture and temperature are acceptable
day-neurtral plants
The tiny extensions in the epidermis cells of the root that help them to absorb water are called
root hairs
__________ occurs when water vapor passes out of the leaf through the stomata.
transpiration
