Test for Module 12 Flashcards
The flow of water and minerals through the xylem is most likely caused by ___
the evaporation of water through the stomata, as dictated by transpiration-pull and cohesion-tension theory
Name some differences between monocots and dicots.
the number of cotyledons produced in the seed, the venation of the leaves, the fibrovascular bundles, and the number of petals on their flowers
What structure in a deciduous tree causes the leaves to die and fall off in the autumn?
absicssion layer
The ___ transport mostly water and minerals
xylem
What are anthocyanins, and what do they do to a leaf’s color?
a group of pigments that can give a leaf a color other than green
The flow of water through the phloem is controlled by
phloem cells and is unrelated to the position of the stomata
the process by which organic substances move through the phloem of a plant
translocation
In which region of a root do you find undifferentiated cells?
meristematic tissue
cells that have not specialized in any particular function
undifferentiated cells
The side without the spongy mesophyll is more tightly packed with ___ making it a darker green.
chlorophyll containing cells
What function do the guard cells perform in a leaf?
open and close the stomata
a growth response to gravity
gravitropism
Name the four processes for which plants require water
photosynthesis, turgor pressure, hydrolysis, and transport
What do insectivorous plants use insects for?
raw materials of biosynthesis
Why is the bark of a tree often cracked?
the stem grows and breaks the bark when it gets too big
