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Samuels BIO Internal Leaves
Test Description: Biology internal leaves
Instructions: Answer all questions to get your test result.
1) This waxy structure is present in some plants, such as holly, for protection.
A
epidermis
B
parenchyma
C
mesophyll
D
cuticle
2) These allow air to move into and out of leaves as well as regulate transpiration.
A
parenchyma
B
chlorophyll
C
stomata
D
mesophyll
3) 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
mesophyll
B
veins
C
stomata
D
epidermis
4) These extensions on the epidermis of a leaf slow water loss and sometimes produce toxic chemicals.
A
leaf hairs
B
flagella
C
cillia
D
stomata
5) These cells open and close the stomata regulate the flow of gases, particularly water vapor.
A
chlorophyll
B
guard cells
C
mesophyll
D
xylem
6) The middle portion of the leaf where photosynthesis takes place
A
phloem
B
epidermis
C
mesophyll
D
veins
7) These contain vascular tissue, xylem and phloem, within the leaf
A
veins
B
parenchyma
C
epidermis
D
mesophyll
8) Straight lines of veins in a leaf denote
A
parallel venation
B
reticulate venation
C
pinnate venation
D
palmate venation
9) Branching lines of veins in a leaf similar to the crown of deciduous trees denote
A
pinnate venation
B
palmate venation
C
reticulate venation
D
parallel venation
10) This is the process by which a plant loses water vapor through its leaves and stems
A
evaporation
B
cellular respiration
C
photosynthesis
D
transpiration
*select an answer for all questions
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