Plant Nutrition And Transport Question Preview (ID: 33065)


BIO 2. TEACHERS: click here for quick copy question ID numbers.

What is actively transported into guard cells to cause water to follow by osmosis?
a) hydrogen ions
b) calcium ions
c) sodium ions
d) potassium ions

The pressure-flow model of phloem transport states that
a) phloem contents always flow from leaves to roots
b) phloem contents flow from source to sink
c) phloem contents always flow from roots to leaves
d) none are correct

Which sequence represents the size of soil particles from largest to smallest?
a) sand, silt, clay
b) sand, clay, silt
c) clay, silt, sand
d) silt, sand, clay

Mineral uptake in plants
a) requires energy
b) occurs at the roots
c) enters the vascular cylinder through endodermal cell
d) all are correct

What main force drives absorption of water, creates tension, and draws water through the plant?
a) adhesion
b) cohesion
c) transpiration
d) absorption

Structures that contain nitrogen fixing bacteria are
a) mycorrhizae
b) root nodules
c) fibrous roots
d) rhizoids

Xylem is made up of vessel elements and
a) companion cells
b) sieve tube members
c) guard cells
d) tracheids

Which of the following does not define an essential nutrient?
a) it has an identifiable role
b) no other nutrient can substitute and fulfill the same role
c) it is always needed in large quantities
d) a deficiency causes a plant to die

What increases the surface area of roots for absorption of water?
a) fibrous roots
b) prop roots
c) mycorrhizae
d) root hairs

Decaying organic matter that accumulates in soil is called
a) vermiculite
b) humus
c) macronutrients
d) micronutrients

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