Question 1

You are viewing a cross section of a plant structure.There is a pith in the middle of the plant structure surrounded by xylem and phloem,which in turn are surrounded by an endodermis.You are most likely looking at which of the following?

Accepted Answer

A) herbaceous dicot stem 
B) herbaceous dicot root 
C) monocot stem 
D) monocot root 
E) woody dicot trunk

Question 2

The water-conducting cells found in angiosperms include which of the following?

Accepted Answer

A) tracheids 
B) vessel elements 
C) sieve tube members 
D) both tracheids and vessel elements 
E) both tracheids and sieve tube members

Question 3

Trichomes are hair-like structures on epidermal cells that may be irritating to animal herbivores.

Accepted Answer

A) True 
 B)False

Question 4

If the blade of a leaf is undivided,the leaf is classified as "simple," and if the leaf is divided into separate leaflets,the leaf is classified as "compound."

Accepted Answer

A) True 
 B)False

Question 5

Most photosynthesis takes place in the ________ of a typical leaf.

Accepted Answer

A) spongy mesophyll 
B) epidermis 
C) palisade mesophyll 
D) vascular bundles 
E) guard cells

Question 6

The cells in phloem involved in the conduction of sugars are ________ and ________.

Accepted Answer

The answer of The cells in phloem involved in the...

Question 7

Support tissues in herbaceous plants are which of the following?

Accepted Answer

A) cork cells and cortex 
B) epidermis and phloem 
C) parenchyma and companion cells 
D) sclerenchyma and collenchyma 
E) sclerenchyma and parenchyma

Question 8

The Michigan lily has multiple leaves surrounding the stem.This leaf arrangement is termed ________.

Accepted Answer

A) pinnately compound 
B) whorled 
C) alternate 
D) palmately compound 
E) opposite

Question 9

Which of the following statements if not correct?

Accepted Answer

A) The cells involved in the transport of organic materials in the phloem are the sieve tube members. 
B) The column of connected sieve tube members is called the sieve tube. 
C) Adjoining each sieve tube member is a companion cell with a large nucleus that "controls" the adjacent sieve tube member through numerous plasmodesmata. 
D) In monocots,xylem and phloem are found in a ring at the periphery of the stem. 
E) Springwood has cells that are noticeably larger than those of summerwood.

Question 10

In the roots of herbaceous dicots,where is the phloem found?

Accepted Answer

A) in vascular bundles 
B) between the "cross-like arms" of the xylem 
C) in alternating bands with the xylem 
D) in the very center of the root 
E) between the pericycle and the endodermis

Question 11

Two of the following terms are correctly matched based on function.Choose the correct match.

Accepted Answer

A) cork cambium :: parenchyma 
B) collenchyma :: secondary phloem 
C) sclerenchyma :: epidermis 
D) periderm :: epidermis 
E) secondary xylem :: apical meristem

Question 12

In an herbaceous dicot root,most starch is stored in the ________,whereas in an herbaceous dicot stem most starch is stored in the ________.

Accepted Answer

The answer of In an herbaceous dicot root,most starch is...

Question 13

The formation of secondary xylem is due to the activities of which of the following?

Accepted Answer

A) vascular cambium 
B) cork cambium 
C) epidermis 
D) cortex 
E) None of the above are correct.

Question 14

When a botanist speaks of wood,she is really speaking of the ________.

Accepted Answer

A) secondary phloem 
B) periderm 
C) cortex 
D) secondary xylem 
E) None of the above are correct.

Question 15

Which of the following is a correct statement?

Accepted Answer

A) Mitotically active regions of vascular plants are called meristems. 
B) The three basic types of tissues in higher plants are dermal,ground,and vascular tissue. 
C) Apical meristems give rise to primary growth (leaves,nonwoody stems,and roots). 
D) Secondary growth results from vascular cambium and cork cambium. 
E) All of the above are correct statements.

Question 16

Two of the following terms are correctly matched based on their similarity of function.Choose the correct match.

Accepted Answer

A) cutin :: suberin 
B) cork :: cortex 
C) vessel elements :: sieve tube members 
D) trichomes :: sclereids 
E) sclerenchyma tissue :: living cells at maturity

Question 17

Two of the following terms are correctly matched based on a close relationship between the two.Choose the correct match.

Accepted Answer

A) secondary xylem :: tracheids 
B) secondary phloem :: vessel elements 
C) primary xylem :: cortex 
D) primary phloem :: periderm 
E) None of the above represents a close relationship.

Question 18

Which of the following is not an area of active cell division?

Accepted Answer

A) apical meristem 
B) lateral meristem 
C) cork cambium 
D) secondary phloem 
E) vascular cambium

Question 19

In a mature tree,the cortex has been completely replaced by the ________.

Accepted Answer

A) periderm 
B) secondary phloem 
C) secondary xylem 
D) vascular rays 
E) epidermis

Question 20

Looking at a cross section of a plant stem under a microscope,you see a clearly defined pith in the middle of the stem and vascular bundles in a ring surrounding the pith.You conclude that this plant is likely which of the following?

Accepted Answer

A) monocot 
B) woody dicot 
C) conifer 
D) herbaceous dicot 
E) fern

Exam 3: The Plant Body