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Plant Nutrition And Transport
Test Description: BIO 2
Instructions: Answer all questions to get your test result.
1) Which of the following does not define an essential nutrient?
A
it has an identifiable role
B
a deficiency causes a plant to die
C
no other nutrient can substitute and fulfill the same role
D
it is always needed in large quantities
2) Decaying organic matter that accumulates in soil is called
A
micronutrients
B
humus
C
vermiculite
D
macronutrients
3) What increases the surface area of roots for absorption of water?
A
root hairs
B
prop roots
C
mycorrhizae
D
fibrous roots
4) Mineral uptake in plants
A
enters the vascular cylinder through endodermal cell
B
occurs at the roots
C
all are correct
D
requires energy
5) Structures that contain nitrogen fixing bacteria are
A
root nodules
B
mycorrhizae
C
fibrous roots
D
rhizoids
6) Xylem is made up of vessel elements and
A
tracheids
B
guard cells
C
companion cells
D
sieve tube members
7) What main force drives absorption of water, creates tension, and draws water through the plant?
A
absorption
B
cohesion
C
transpiration
D
adhesion
8) Which sequence represents the size of soil particles from largest to smallest?
A
clay, silt, sand
B
silt, sand, clay
C
sand, clay, silt
D
sand, silt, clay
9) The pressure-flow model of phloem transport states that
A
phloem contents always flow from roots to leaves
B
phloem contents always flow from leaves to roots
C
phloem contents flow from source to sink
D
none are correct
10) What is actively transported into guard cells to cause water to follow by osmosis?
A
calcium ions
B
potassium ions
C
hydrogen ions
D
sodium ions
*select an answer for all questions
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