These openings on the leaf surface allow for gas exchange.
100
What are STOMATA?
Heartwood and Sapwood consist of:A)BarkB)CorkC)Secondary PhloemD)Secondary Xylem
200200
What is D) SECONDARY XYLEM?
These cells function as support elements for plants and often have lignin in their cell
walls.
300
What are SCLERENCHYMA cells?
Plants have three basic tissue systems, including dermal tissue
and vascular tissue. The third tissue system which includes a variety of cells with specialized
functions is called…
400
What is GROUND TISSUE?
Sieve-tube elements are cells found in this plant tissue.
500
What is PHLOEM?
This network of vessels allows for the transport of water and minerals.
100
What is XYLEM?
The cytoplasms of plant cells are continuous from cell to cell. This allows materials to move through plant tissue by the “cytoplasmic continuum”. This transport route is called…..
200200
What is the SYMPLASTIC route?
These specialized channels through the cell membrane enhance the
passive diffusion of water across the membrane.
300
What are AQUAPORINS?
Root pressure may result in more water entering leaves than is transpired. This can cause water to be exuded from leaves. This process is called…
400
What is GUTTATION?
This waxy material in the cell wall of endodermal tissue blocks apoplastic transport into vascular
tissue.
500
What is the CASPARIAN STRIP
Double fertilization results in a fertilized egg (zygote) and this triploid structure.
100
What is ENDOSPERM?
Fruit develop from this structure
200200
What is the OVARY?
The embyronic root is called …
300
What is the RADICLE?
Seed germination depends upon this process in which water enters the seed
400
What is INBIBITION?
In monocots the early shoot arising from the seed is sheathed in a structure called…
500
What is the COLEOPTILE?
Fungi live in association with the roots of most plants. The association where the fungal hyphae extend into root tissue is called…
100
What is ENDOMYCORRHIZAE
The bacterial genus Rhizobium lives in association with plant roots and provides the plant with an important resource via this process
200200
What is NITROGEN FIXATION?
Which of the following elements is not a micronutrient: Iron, Zinc, Carbon, Copper
300
What is CARBON?
This receptor responds to light and regulates many of the plant’s responses to light throughout its
life.
400
What is a PHYTOCHROME?
Systemic Acquired Resistance (SAR) is
triggered by this signal molecule
500
What is SALICYLIC ACID?
This plant hormone is used commercially to increase
fruit growth. (Think “Thompson seedless green grapes”)
100
What is GIBBERELLIN?
The “Triple Response to Mechanical Stress” is mediated by this hormone.
200200
What is ETHYLENE?
This hormone is active in plant responses to drought.