Lecture 33-36 Flashcards
What is the difference between the apoplastic route and the symplastic route?
Apoplastic route is through the cell wall, symplastic route is not (through the cytosol)
An aqueous solution that is high in sucrose is
phloem sap
Plant _____ are chemical signals that modify specific physiological processes
Hormones
____ are produced in very low concentrations, but can have profound effects on growth
Hormones
What do auxin hormones do?
grow or increase
What do cytokinin hormones do?
divide
What do gibberellin hormones do?
Expand
Abscisic acid (ABA). What does it do and why
Slows growth, useful for seed dormancy and drought tolerance
Ethylene is involved in the process of
Fruit ripening
As bananas turn yellow and ripen, they release
Ethylene
Senescence is another word for
Apoptosis
Carbon, oxygen hydrogen and nitrogen, magnesium are examples of what for plants?
Macronutrients
Chlorine, iron, zinc. nickel are examples of what for plants?
Micronutrients
What is the name of the layer of soil closely surrounding the plant’s roots?
The rhizosphere
What are mycelia in fungi?
Networks of branches hyphae with the goal of maximizing surface area
