Lesson 9: Unit 2 Review Flashcards
What is the primary function of the leaf?
to produce food for the rest of the plant by photosynthesis
What are the two major categories of leaves?
broadleaf and needle-leaf
Trees that lose their leaves in the winter
deciduous
Trees that keep their leaves during the winter
evergreen
trees with needle-leaves
conifers
the angle at which the leaf grows from the branch
axil
Into what can a leaf bud grow?
a leaf, a flower, or a branch
What three elements are required for photosynthesis?
sunlight, water, and CO2
enzyme contained in chloroplasts which performs the process of photosynthesis and gives leaves their green color
chlorophyll
open and close the stomata so that the leaf doesn’t dry out
guard cells
a leaf with multiple blades for every petiole
compound
“like a palm”
palmate
transports food made in the leaves down to the stem and roots
phloem
“like a feather”
pinnate
a leaf with no petiole
sessile
a leaf with a single blade for every petiole
simple
tiny openings in the bottom of a leaf that allow gases in and out
stomata
vascular structures that contain the xylem and phloem
veins
arrangement of veins in a leaf
venation
transports water absorbed by the roots to the rest of the plant
xylem
enzyme in the mesophyll that gives the cell its green color
chlorophyll
Label the starred blank:
cuticle
Label the starred blank:
upper epidermis
Label the starred blank:
palisade layer
