Question 1

-In the figure, what is item number 5?

Accepted Answer

The answer of 
-In the figure, what is item number...

Question 2

Which term refers to primary and secondary xylem that can no longer transport water and solutes, but which instead is strengthened dry tissue where some defensive compounds are stored?

Accepted Answer

Primary and secondary xylem in the center of a tree trunk eventually becomes heartwood, which can no longer transport water and solutes. Instead, it serves as strengthened dry tissue where some defensive compounds are stored. Sapwood (A) is the outer layer of living xylem that still transports water and solutes. Bark (B) is the protective outer layer of a tree that includes all tissues outside the vascular cambium. The vascular cambium (C) is a layer of actively dividing cells that produces new xylem and phloem.

Question 3

Where does the primary uptake of water and mineral ions from the soil occur?
a.in the root hairs
b.in the pericycle
c.in the endodermis
d.in the quiescent centre

Accepted Answer

The answer of Where does the primary uptake of water...

Question 4

Which sequence places the tissues in the stem of a young tree in the correct order, starting from the exterior of the plant with the outermost layer of stem tissue, and moving toward the centre?

Accepted Answer

The correct sequence starting from the exterior of the plant with the outermost layer of stem tissue, and moving toward the center is primary phloem, secondary phloem, secondary xylem, primary xylem. This is because the primary phloem is the outermost layer of the stem, followed by secondary phloem, which is produced by the vascular cambium. The secondary xylem is produced by the vascular cambium and placed towards the center, followed by primary xylem, which is the innermost layer of the stem.

Question 5

-In the figure, what is item number 1?

Accepted Answer

The answer of 
-In the figure, what is item number...

Question 6

From which of the following structures do lateral roots arise?

Accepted Answer

Lateral roots arise from the pericycle, which is the outer layer of cells in the vascular cylinder of the root. The other options (root hairs, endodermis, and root cap) do not give rise to lateral roots.

Question 7

-In the figure, what is item number 4?

Accepted Answer

A stoma is a small opening in the epidermis of a leaf that allows for the exchange of gases.

Question 8

Match each description of a plant characteristic to the letter that represents the plant group that typically has that characteristic. Each letter may be used once, more than once, or not at all.
-two cotyledons

Accepted Answer

Eudicots, also known as dicots, typically have two cotyledons while monocots have only one. Therefore, option A is the correct answer.

Question 9

-In the figure, what is item number 2?

Accepted Answer

The palisade mesophyll is typically located beneath the upper epidermis of a leaf and is composed of tightly packed cells that are rich in chloroplasts, making it the primary site for photosynthesis.

Question 10

Which structure surrounds and protects the root apical meristem?

Accepted Answer

The root cap surrounds and protects the root apical meristem. The pericycle is a layer of cells in the root cylinder, the endodermis is a single layer of cells that surrounds the vascular tissue in the root, and the root hairs are extensions of the epidermal cells that increase the surface area of the root for absorption.

Question 11

-In the figure, what is item number 1?

Accepted Answer

The answer of 
-In the figure, what is item number...

Question 12

Which of the following most directly gives rise to secondary xylem and phloem?

Accepted Answer

Secondary xylem and phloem are produced by the vascular cambium, which is a lateral meristem found in mature stems and roots. The apical meristem is responsible for primary growth, while the procambium gives rise to the primary xylem and phloem during embryonic development. The protoderm gives rise to the epidermis during primary growth.

Question 13

-In the figure, what is item number 5?

Accepted Answer

The answer of 
-In the figure, what is item number...

Question 14

-In the figure, what is item number 4?

Accepted Answer

The root apical meristem is the region of the root where new cells are produced.

Question 15

-In the figure, what is item number 3?

Accepted Answer

The answer of 
-In the figure, what is item number...

Question 16

Imagine that you have found a mutant oak plant that CANNOT produce vascular cambium. What would be the most direct result of this mutation?

Accepted Answer

Vascular cambium is responsible for the production of secondary xylem and phloem, which are important for the transport of water and nutrients throughout the plant. Without this ability, the plant would not be able to effectively distribute resources, which would ultimately limit its growth and survival. The other options (A, B, and D) do not directly relate to the function of vascular cambium.

Question 17

Which term refers to the selectively permeable barrier that is present in the innermost layer of the root cortex?

Accepted Answer

The selectively permeable barrier present in the innermost layer of the root cortex is called the endodermis. The pericycle refers to a layer of cells located just inside the endodermis. Root hairs are elongated cells that increase the surface area of roots for better absorption. The quiescent centre refers to a group of cells in the root meristem that are not actively dividing.

Question 18

What is the term for a single main root that is adapted for storage and which typically grows downward and fairly deep?

Accepted Answer

A taproot is a single main root that grows downward and is adapted for storage. It is typically larger and goes deeper than other roots. Tuber and rhizome are both types of roots, but they are not necessarily adapted for storage and do not grow downward. Fibrous roots are a system of many small, shallow roots rather than a single main root.

Question 19

-In the figure, what is item number 3?

Accepted Answer

The answer of 
-In the figure, what is item number...

Question 20

-In the figure, what is item number 2?

Accepted Answer

The answer of 
-In the figure, what is item number...

Quiz 34: Organization of the Plant Body

-In the figure, what is item number 5?

Which term refers to primary and secondary xylem that can no longer transport water and solutes, but which instead is strengthened dry tissue where some defensive compounds are stored?

Where does the primary uptake of water and mineral ions from the soil occur? a.in the root hairs b.in the pericycle c.in the endodermis d.in the quiescent centre

Which sequence places the tissues in the stem of a young tree in the correct order, starting from the exterior of the plant with the outermost layer of stem tissue, and moving toward the centre?

-In the figure, what is item number 1?

From which of the following structures do lateral roots arise?

-In the figure, what is item number 4?

Match each description of a plant characteristic to the letter that represents the plant group that typically has that characteristic. Each letter may be used once, more than once, or not at all. -two cotyledons

-In the figure, what is item number 2?

Which structure surrounds and protects the root apical meristem?

-In the figure, what is item number 1?

Which of the following most directly gives rise to secondary xylem and phloem?

-In the figure, what is item number 5?

-In the figure, what is item number 4?

-In the figure, what is item number 3?

Imagine that you have found a mutant oak plant that CANNOT produce vascular cambium. What would be the most direct result of this mutation?

Which term refers to the selectively permeable barrier that is present in the innermost layer of the root cortex?

What is the term for a single main root that is adapted for storage and which typically grows downward and fairly deep?

-In the figure, what is item number 3?

-In the figure, what is item number 2?