Question

The water-transporting cells of xylem tissue are tracheids and vessel members?

How is the structure of tracheids similar to the structure of vessel members?

How is the structure of tracheids different from the structure of vessel members?

How is the structure of both tracheids and vessel members related to their ability to serve as efficient water-conduction cells?

Sieve tube members are the conducting cells of phloem, specialized for the transport of metabolites within a plant. In what way do sieve tube members differ from a "typical" plant cell?

How do these differences improve the ability of sieve tube members to serve as efficient metabolite-conducting cells?

What is a companion cell, and what is its function?

To what tissue system does each of the following belong - tracheids, vessel members, sieve tube members, and companion cells?

The epidermis is a primary dermal tissue and the periderm is a secondary dermal tissue. Describe the most common cell types found in each of these tissues.

Both the epidermis and the periderm need to perform the same basic functions. What are those functions?

How does the structure of the epidermis contribute to those functions?

How does the structure of the periderm contribute to those functions?

What are guard cells?

How does the structure of guard cells differ from the structure of other epidermal cells?

What is the function of guard cells?

What are trichomes? What functions might trichomes perform?

What is a lenticel?

Describe its structure and function. Describe, in detail, the arrangement of primary tissues in a dicot stem. How does the arrangement of tissues in a monocot stem compare to that of dicot stems – how is it the same, how is it different?

The cortex region and the pith region of a dicot stem typically have different functions. What is the most common function of each region?

What type of tissue is each composed of?

In what types of plants does secondary growth occur?

In what plant organs does secondary growth occur?

Describe where lateral meristems form at the start of secondary growth in a stem.

Describe how the single layer of vascular cambium can produce both secondary xylem and secondary phloem.

What is wood?

bark?

early wood vs. late wood?

What allows the different layers of growth occurring each year to be visible to the human eye?

What is the function of mesophyll tissue?

What are the two types of mesophyll tissue in a typical dicot leaf?

How do these differ from each other with respect to location within the leaf, cell arrangement,