Question 1

The mechanism explains the movement of water and minerals through xylem.

Accepted Answer

A)   bulk- flow
B)   assisted diffusion
C)   translocation
D)   cohesion- tension
E)   pressure- flow D

Question 2

Trees are among the largest and oldest living things on Earth. Like all life on Earth, the majority of a tree's biomass is carbon based. What is the source of this carbon?

Accepted Answer

A)   Crushed rock and water
B)   Air
C)   Fertilizers
D)   Water
E)   The organic layer of the soil

Question 3

A plant, by opening and closing its stomata, must achieve a balance between

Accepted Answer

A)   carbon dioxide loss and sugar uptake.
B)   sugar loss and oxygen uptake.
C)   water loss and carbon dioxide uptake.
D)   oxygen loss and water uptake.
E)   carbon dioxide uptake and oxygen loss.

Question 4

Most conifers have only tracheids. Which structural feature allows water and minerals to pass from one tracheid to the next?

Accepted Answer

A)   Plasmodesmata
B)   Pits
C)   Sieve plates
D)   Stomata
E)   Secondary cell walls

Question 5

The dermal tissue system consists of

Accepted Answer

A)   parenchyma tissue.
B)   phloem.
C)   collenchyma tissue.
D)   epidermis.
E)   xylem.

Question 6

Plant cells that are actively dividing are _ cells.

Accepted Answer

A)   vascular
B)   differentiated
C)   meristem
D)   ground
E)   conducting

Question 7

Ground tissue is found in the primary plant only, never in the secondary plant.

Accepted Answer

A) True 
 B)False

Question 8

Based on the figure, estimate the age of this tree in years.

Accepted Answer

A)   8 to 10
B)   over 35
C)   13 to 15
D)   20 to 25
E)   3 to 5

Question 9

The most widely accepted explanation for the transport of sugar- containing fluids in phloem is the mechanism.

Accepted Answer

A)   transpiration
B)   cohesion- tension
C)   root pressure
D)   bulk flow
E)   pressure- flow

Question 10

You discovered an unidentified weed and cut it almost to the ground with the lawn mower. Soon it grows as tall as it was before you cut it. This growth is likely due to which growth region?

Accepted Answer

A)   Root apical meristem
B)   Shoot apical meristem
C)   Lateral bud meristem
D)   Cork cambium
E)   Vascular cambium C

Question 11

Increases in plant length (such as overall height or branch and root length)  result from cell division that occurs

Accepted Answer

A)   only in apical meristems at shoot and root tips.
B)   only from lateral meristems.
C)   equally throughout the plant body.
D)   from cell division of differentiated cells. A

Question 12

Which essential plant nutrient regulates the opening and closing of pores in the leaves?

Accepted Answer

A)   Potassium
B)   Iron
C)   Phosphorus
D)   Copper
E)   Calcium

Question 13

Which of these plant cells is alive but has no nucleus?

Accepted Answer

A)   Sieve- tube element
B)   Companion cell
C)   Parenchyma cell
D)   Vessel element
E)   Collenchyma cell

Question 14

Water flows upward in some xylem tubes and downward in others.

Accepted Answer

A) True 
 B)False

Question 15

Mycorrhizae are

Accepted Answer

A)   parasitic relationships between bacteria and the roots of a land plant.
B)   symbiotic relationships between bacteria and the roots of a land plant.
C)   commensal relationships between a fungus and the leaves of a land plant.
D)   symbiotic relationships between a fungus and the roots of a land plant.
E)   mutualistic relationships between a fungus and an alga.

Question 16

Where are apical meristems located?

Accepted Answer

A)   Scattered throughout the plant
B)   At the tips of roots, shoots, and branches
C)   In cylinders along the side of the root
D)   Between the xylem and the phloem
E)   In clusters in the parenchyma

Question 17

In the stems of plants, where is sugar converted to starch and stored as a food reserve?

Accepted Answer

A)   Parenchyma cells in both the cortex and pith
B)   Sclerenchyma
C)   Central vascular cylinder
D)   Collenchyma associated with xylem cells
E)   Mesophyll layer

Question 18

On a stem, branches grow and develop from _ , whereas on the roots, branches grow and develop from the .

Accepted Answer

lateral bu...

Question 19

Most of the interior of a leaf consists of soft, thin- walled, living cells.

Accepted Answer

A)   guard
B)   parenchyma
C)   collenchyma
D)   epidermal
E)   sclerenchyma

Question 20

When potassium ions are transported into guard cells, water

Accepted Answer

A)   is actively transported into the guard cells.
B)   leaves the guard cells by osmosis.
C)   is actively transported out of the guard cells.
D)   moves to the edge of the guard cell.
E)   enters the guard cells by osmosis.

Exam 44: Plant Anatomy and Nutrient Transport

The mechanism explains the movement of water and minerals through xylem.

Correct AnswerverifiedD

Trees are among the largest and oldest living things on Earth. Like all life on Earth, the majority of a tree's biomass is carbon based. What is the source of this carbon?

Correct AnswerverifiedShow Answer

A plant, by opening and closing its stomata, must achieve a balance between

Correct AnswerverifiedShow Answer

Most conifers have only tracheids. Which structural feature allows water and minerals to pass from one tracheid to the next?

Correct AnswerverifiedShow Answer

The dermal tissue system consists of

Correct AnswerverifiedShow Answer

Plant cells that are actively dividing are _ cells.

Correct AnswerverifiedShow Answer

Ground tissue is found in the primary plant only, never in the secondary plant.

Correct AnswerverifiedShow Answer

Based on the figure, estimate the age of this tree in years.

Correct AnswerverifiedShow Answer

The most widely accepted explanation for the transport of sugar- containing fluids in phloem is the mechanism.

Correct AnswerverifiedShow Answer

You discovered an unidentified weed and cut it almost to the ground with the lawn mower. Soon it grows as tall as it was before you cut it. This growth is likely due to which growth region?

Correct AnswerverifiedC

Increases in plant length (such as overall height or branch and root length) result from cell division that occurs

Correct AnswerverifiedA

Which essential plant nutrient regulates the opening and closing of pores in the leaves?

Correct AnswerverifiedShow Answer

Which of these plant cells is alive but has no nucleus?

Correct AnswerverifiedShow Answer

Water flows upward in some xylem tubes and downward in others.

Correct AnswerverifiedShow Answer

Mycorrhizae are

Correct AnswerverifiedShow Answer

Where are apical meristems located?

Correct AnswerverifiedShow Answer

In the stems of plants, where is sugar converted to starch and stored as a food reserve?

Correct AnswerverifiedShow Answer

On a stem, branches grow and develop from _ , whereas on the roots, branches grow and develop from the .

Correct Answerverifiedlateral bu...View AnswerShow Answer

Most of the interior of a leaf consists of soft, thin- walled, living cells.

Correct AnswerverifiedShow Answer

When potassium ions are transported into guard cells, water

Correct AnswerverifiedShow Answer

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C

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lateral bu...
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