Question 1

Roots

Accepted Answer

A)  always form a fibrous root system that holds the soil. 
B)  possess a root cap at their tip. 
C)  form branches from axillary buds. 
D)  are commonly photosynthetic. 
E)  do not show secondary growth. 
A)  always form a fibrous root system that holds the soil. 
B)  possess a root cap at their tip. 
C)  form branches from axillary buds. 
D)  are commonly photosynthetic. 
E)  do not show secondary growth.

Question 2

Facilities such as the Doomsday Vault are necessary to preserve genetic _______.

Accepted Answer

variation,

Question 3

Compared to sclerenchyma, collenchyma cells

Accepted Answer

A)  have more secondary cell wall materials. 
B)  are variously shaped. 
C)  can be found in bundles. 
D)  are used to support the plant. 
E)  are more flexible. 
A)  have more secondary cell wall materials. 
B)  are variously shaped. 
C)  can be found in bundles. 
D)  are used to support the plant. 
E)  are more flexible.

Question 4

Which of the following is not a function of cork cambium?

Accepted Answer

A)  Protection from microorganisms 
B)  Minimization of water loss 
C)  Secondary growth of stems and roots 
D)  Mineral uptake 
E)  Breaking off and allowing expansion of tree trunks 
A)  Protection from microorganisms 
B)  Minimization of water loss 
C)  Secondary growth of stems and roots 
D)  Mineral uptake 
E)  Breaking off and allowing expansion of tree trunks

Question 5

Root hairs are adaptations that

Accepted Answer

A)  increase surface area. 
B)  defend the plant. 
C)  reduce water loss. 
D)  provide active growth. 
E)  support the plant. 
A)  increase surface area. 
B)  defend the plant. 
C)  reduce water loss. 
D)  provide active growth. 
E)  support the plant.

Question 6

Which of the following best describes the function of the cork cambium?

Accepted Answer

A)  It lays down a protective cork covering over exposed phloem tissue. 
B)  It inhibits the sloughing off of epidermal tissue. 
C)  It allows for diameter shrinking in stems and roots. 
D)  It supplies the secondary xylem. 
E)  All of the above 
A)  It lays down a protective cork covering over exposed phloem tissue. 
B)  It inhibits the sloughing off of epidermal tissue. 
C)  It allows for diameter shrinking in stems and roots. 
D)  It supplies the secondary xylem. 
E)  All of the above

Question 7

Cactus spines result from a modification of the same plant organ that produces

Accepted Answer

A)  coconut trunks. 
B)  maple leaves. 
C)  strawberry runners. 
D)  potato tubers. 
E)  corn adventitious roots. 
A)  coconut trunks. 
B)  maple leaves. 
C)  strawberry runners. 
D)  potato tubers. 
E)  corn adventitious roots.

Question 8

Label the diagram below, showing the basic plant body plan.

Accepted Answer

1. Roots
2. Stem
3. Petiole
4.

Question 9

The pericycle

Accepted Answer

A)  is the innermost layer of the cortex. 
B)  is the tissue within which lateral roots arise. 
C)  consists of highly differentiated cells. 
D)  forms a star-shaped structure at the very center of the root. 
E)  is waterproofed by suberin. 
A)  is the innermost layer of the cortex. 
B)  is the tissue within which lateral roots arise. 
C)  consists of highly differentiated cells. 
D)  forms a star-shaped structure at the very center of the root. 
E)  is waterproofed by suberin.

Question 10

The micrographs below indicate several structures in the steles of typical eudicot and monocot roots. Identify each numbered structure and state its major function.

Accepted Answer

1. Endodermis: selective permeability ba

Question 11

Plasmodesmata passing between two plant cells travel through

Accepted Answer

A)  the primary cell wall. 
B)  the secondary cell wall. 
C)  both the primary and secondary cell walls. 
D)  neither the primary nor the secondary cell wall. 
E)  the secondary and sometimes the primary cell wall. 
A)  the primary cell wall. 
B)  the secondary cell wall. 
C)  both the primary and secondary cell walls. 
D)  neither the primary nor the secondary cell wall. 
E)  the secondary and sometimes the primary cell wall.

Question 12

Which of the following statements about parenchyma cells is false?

Accepted Answer

A)  They are the most common cell in the plant. 
B)  They may contain chloroplasts. 
C)  They are commonly used for food storage. 
D)  They are alive at maturity. 
E)  They usually have thick cell walls. 
A)  They are the most common cell in the plant. 
B)  They may contain chloroplasts. 
C)  They are commonly used for food storage. 
D)  They are alive at maturity. 
E)  They usually have thick cell walls.

Question 13

In a woody stem, gas exchange occurs through

Accepted Answer

A)  stomata. 
B)  the waxy cuticle. 
C)  lenticels. 
D)  the cork cambium. 
E)  bundle sheath cells. 
A)  stomata. 
B)  the waxy cuticle. 
C)  lenticels. 
D)  the cork cambium. 
E)  bundle sheath cells.

Question 14

The large central vacuoles and rigid walls of plant cells

Accepted Answer

A)  conserve energy and materials. 
B)  make the plant less attractive to predators. 
C)  allow the plant to survive temperature extremes. 
D)  protect the plant from dessication. 
E)  promote growth and provide support. 
A)  conserve energy and materials. 
B)  make the plant less attractive to predators. 
C)  allow the plant to survive temperature extremes. 
D)  protect the plant from dessication. 
E)  promote growth and provide support.

Question 15

Secondary growth

Accepted Answer

A)  occurs in the apical meristems. 
B)  requires cell division by the lateral meristems. 
C)  is more common in monocots than in eudicots. 
D)  only takes place in stems. 
E)  only results in the formation of more vascular tissue. 
A)  occurs in the apical meristems. 
B)  requires cell division by the lateral meristems. 
C)  is more common in monocots than in eudicots. 
D)  only takes place in stems. 
E)  only results in the formation of more vascular tissue.

Question 16

Veins in leaves

Accepted Answer

A)  are formed from epidermal cells. 
B)  hold the leaves together. 
C)  are composed of vascular tissue. 
D)  function to provide CO2 for photosynthesis. 
E)  are sites of photosynthesis. 
A)  are formed from epidermal cells. 
B)  hold the leaves together. 
C)  are composed of vascular tissue. 
D)  function to provide CO2 for photosynthesis. 
E)  are sites of photosynthesis.

Question 17

Where would you expect to find xylem in a leaf?

Accepted Answer

A)  In the veins 
B)  In the mesophyll cells 
C)  In the epidermis 
D)  In the stomata 
E)  In the cuticle 
A)  In the veins 
B)  In the mesophyll cells 
C)  In the epidermis 
D)  In the stomata 
E)  In the cuticle

Question 18

The diverse forms of Brassica oleracea arose by

Accepted Answer

A)  natural selection. 
B)  genetic drift. 
C)  artificial selection. 
D)  hybridization. 
E)  recombinant DNA technology. 
A)  natural selection. 
B)  genetic drift. 
C)  artificial selection. 
D)  hybridization. 
E)  recombinant DNA technology.

Question 19

The meristem is

Accepted Answer

A)  the tip of the stem. 
B)  the site on the stem where a bud forms. 
C)  supporting tissue. 
D)  composed of undifferentiated cells. 
E)  the base of the leaves. 
A)  the tip of the stem. 
B)  the site on the stem where a bud forms. 
C)  supporting tissue. 
D)  composed of undifferentiated cells. 
E)  the base of the leaves.

Question 20

Use the following to answer questions 
Match one of the cell types from the list below with each description that follows.
-Stone cells of pears

Accepted Answer

A) Parenchyma cells 
B) Sclerenchyma cells 
C) Collenchyma cells 
A) Parenchyma cells 
B) Sclerenchyma cells 
C) Collenchyma cells

Exam 34: The Plant Body

Roots

Facilities such as the Doomsday Vault are necessary to preserve genetic _______.

Compared to sclerenchyma, collenchyma cells

Which of the following is not a function of cork cambium?

Root hairs are adaptations that

Which of the following best describes the function of the cork cambium?

Cactus spines result from a modification of the same plant organ that produces

Label the diagram below, showing the basic plant body plan.

The pericycle

The micrographs below indicate several structures in the steles of typical eudicot and monocot roots. Identify each numbered structure and state its major function.

Plasmodesmata passing between two plant cells travel through

Which of the following statements about parenchyma cells is false?

In a woody stem, gas exchange occurs through

The large central vacuoles and rigid walls of plant cells

Secondary growth

Veins in leaves

Where would you expect to find xylem in a leaf?

The diverse forms of Brassica oleracea arose by

The meristem is

Use the following to answer questions Match one of the cell types from the list below with each description that follows. -Stone cells of pears

Studying Life

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