Leaf Anatomy
Which part of the leaf is responsible for capturing light energy?
Leaf Blade
Which part of the plant attaches the leaf to the stem?
Petiole
Describe a leaf modification common in succulents.
a. Presence of spines
b. Conical shape
c. Extra thick cuticle
What is the primary function of most leaves?
Photosynthesis
What do the stomata in leaves primarily regulate?
Water loss and gas exchange
What is the waxy covering on epidermis that prevents water loss in plants?
Cuticle
Water lily pads often float on top of bodies of water. Where are their stomata located on the leaf?
The top, the exchange of gasses require exposure to air.
In which type of plants are parallel veins typically found?
Monocots
Which type of cells help the stomata open and close?
Guard cells
Which two structures are wrapped within the vein of a leaf?
Xylem and Phloem
These colorful leaves are often mistaken for petals in poinsettias and dogwood.
Bracts
What is the benefit of leaves undergoing abscission?
What happens to chlorophyll during autumn?
It starts to break down
Which term refers to the detachment of deciduous leaves in autumn?
Abscission
These modified leaves wrap around structures to support a plant as it grows upward.
Tendrils
Leaves (unlike stems and roots) have a predetermined size at full maturity rather than continued indefinite growth. What term describes this tendency?
Determinate
These cells are held in the middle of the leaf blade (between the epidermal tissues) and are a primary site of photosynthesis and have air pockets utilized in gas exchange.
Mesophyll
What color do anthocyanin pigments give to leaves?
Red
Which is an example of a plant with leaves modified specifically to store oils and food?
An onion
Why do carnivorous plants “eat” insects if they obtain energy through photosynthesis?
To supplement a nitrogen deficiency