Samuels BIO Internal Leaves: Question Preview (ID: 28346)

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This waxy structure is present in some plants, such as holly, for protection.
a) cuticle b) epidermis c) mesophyll d) parenchyma
These allow air to move into and out of leaves as well as regulate transpiration.
a) stomata b) chlorophyll c) mesophyll d) parenchyma
This layer of the leaf is the covering for the upper and lower surfaces of the leaf and is sometimes covered in a waxy structure.
a) epidermis b) mesophyll c) veins d) stomata
These extensions on the epidermis of a leaf slow water loss and sometimes produce toxic chemicals.
a) leaf hairs b) cillia c) flagella d) stomata
These cells open and close the stomata regulate the flow of gases, particularly water vapor.
a) guard cells b) chlorophyll c) mesophyll d) xylem
The middle portion of the leaf where photosynthesis takes place
a) mesophyll b) epidermis c) veins d) phloem
These contain vascular tissue, xylem and phloem, within the leaf
a) veins b) mesophyll c) epidermis d) parenchyma
Straight lines of veins in a leaf denote
a) parallel venation b) pinnate venation c) palmate venation d) reticulate venation
Branching lines of veins in a leaf similar to the crown of deciduous trees denote
a) palmate venation b) parallel venation c) pinnate venation d) reticulate venation
This is the process by which a plant loses water vapor through its leaves and stems
a) transpiration b) cellular respiration c) evaporation d) photosynthesis
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