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Inside A Leaf
Test Description: Grades 6-8 Life Science
Instructions: Answer all questions to get your test result.
1) ___ are the parts of a plant that make food.
A
roots
B
stems
C
leaves
D
flowers
2) The ___ is the waxy, waterproof outer coating of a leaf.
A
spongy layer
B
palisade layer
C
epidermis
D
cuticle
3) The ___ is the outer layer of protective, skin-like cells.
A
spongy layer
B
epidermis
C
cuticle
D
palisade layer
4) The ___ is the tightly-packed top layer of the mesophyll where there are lots of chloroplasts.
A
epidermis
B
cuticle
C
palisade layer
D
spongy layer
5) The ___ is the loosely-packed bottom layer of the mesophyll where there is lots of open space for air.
A
epidermis
B
spongy layer
C
palisade layer
D
cuticle
6) ___ are the CELL PARTS that contain chlorophyll - its where photosynthesis happens in the cells.
A
nucleus
B
vacuoles
C
chloroplasts
D
mitochondrion
7) The ___ are the tiny mouth-like openings on the bottom of the leaf that can open and close.
A
phloem
B
stomata
C
xylem
D
guard cells
8) The ___ open and close the stomata - similar to lips.
A
stomata
B
xylem
C
phloem
D
guard cells
9) The ___ is the network of tiny tubes that moves water from the roots through the entire plant.
A
palisade layer
B
spongy layer
C
xylem
D
phloem
10) The ___ is the network of tiny tubes that moves food in the sap from the leaves through the entire plant.
A
xylem
B
spongy layer
C
phloem
D
palisade layer
11) ___ is the continous flow of water from the soil, through plants and into the atmosphere as water vapor.
A
germination
B
transpiration
C
pollination
D
photosynthesis
12) ___ is the process plants use to make their own food.
A
photosynthesis
B
germination
C
transpiration
D
pollination
13) The epidermis ___.
A
protects the leaf
B
makes the food
C
seals water inside the leaf
D
absorbs releases gases (gas exchange)
14) The cuticle ___.
A
seals water inside the leaf
B
protects the leaf
C
absorbs releases gases (gas exchange)
D
makes the food
15) The palisade layer ___.
A
absorbs releases gases (gas exchange)
B
protects the leaf
C
seals water inside the leaf
D
makes the food
16) The spongy layer ___.
A
seals water inside the leaf
B
protects the leaf
C
makes the food
D
absorbs releases gases (gas exchange)
17) The stomata ___.
A
opens closes to allow gases to enter/exit
B
transports food in the sap
C
controls opening closing the stomata
D
transports water
18) The guard cells ___.
A
controls opening closing the stomata
B
transports food in the sap
C
opens closes to allow gases to enter/exit
D
transports water
19) The xylem ___.
A
transports food in the sap
B
controls opening closing the stomata
C
transports water
D
opens closes to allow gases to enter/exit
20) The phloem ___.
A
controls opening closing the stomata
B
opens closes to allow gases to enter/exit
C
transports water
D
transports food in the sap
*select an answer for all questions
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