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BIO 212 Test 3 Practice questions
Terms in this set (35)
The unique double shells of diatoms are made of...
To reproduce sexually, bryophytes require...
Free water external to the plant
The development of tracheids helped land plants to...
Grow to very large sizes
ABA is synthesized in the roots in response to decreased soil water potential. ABA then translocates to the leaves, where it rapidly laters the osmotic potential of guard cells. What effect would this have on the stomata and the process of transpiration?
The stomata would close thereby decreasing the rate of transpiration
If temperatures suddenly raise 5 to 10 C, _____ proteins are produced to help stabilize other proteins.
In which of these groups does it appear that the cuticle evolved?
Cyanogenic glycosides, which break down into cyanide, are toxic to cell because they inhibit the function of which organelles?
How does systemic cause the activation of the wound response in tomato plants?
It induces a jasmonic signaling pathway in certain cells
The dominant stage in the life cycle of tracheophyte plants is the...
Which of the following methods do fungi use in order to penetrate the initial layer of a plant's defense?
Entry through stomates
Systemin can correctly be described as a(n)...
____ are chemical substances produced in small quantities in one part of an organism and then transported to another part of the organism, where they bring about physiological responses.
Which cell structure is more likely responsible for sensing gravity?
Directional, light-triggered plant development is known as...
Rapid turgor pressure changes in specialized multicellular swellings called ____; are associated with leaves that move in response to touch or light
The series of metabolic events that occur within tomato plants in response to wounding is...
A systemic response
Which of the following plant secondary metabolites is used as an antimalarial drug?
The concept of endosymbiosis is widely accepted. What kind of relationship is it?
Both organisms in the partnership benefit
Protists are classified into a single kingdom because of which of the following features?
They are eukaryotes, but not fungi, plants, or animals
Directional growth response of plants to touch is called...
What endogenous process helps plants to keep their movements and other responses synchronized with the environment?
A circadian clock
For which of the following organisms is the sporophyte stage the dominant stage in the life cycle?
Vacuoles for ingesting food and regulating their water balance are characteristic of...
Which category of plant second metabolites include stimulants like caffeine, nicotine, and cocaine?
A waxy cuticle prevents desiccation. What is the cost of this adaptation?
Reduced gas permeability
Plants as well as brown, green, and red algae show a basic life cycle which involves the alternation of generations between...
Sporophyte and a gametophyte
Plants such as peppermint and sage contains oils. What is the function of these oils?
They help repel insects
Tannins are chemicals that help plants repel invaders by...
Binding to proteins and thereby disrupting the predator's digestion
The elongation of stems is stimulated by...
Auxin and gibberellin
____ is directional growth responses of plants to an unidirectional source of light.
The White Cliffs of Dover, a famous landmark in England, is made of limestone which is really a collection of the pore-studded shells (tests) of ...
Why are most bryophytes less that 10cm tall?
They have conducting cells instead of tracheids
Why is a rhizoid not considered a true root?
Lack xylem tissue
The parasite that is responsible for causing malaria is called...
Plants lacking well-developed conducting systems such as mosses, liverworts, and hornworts have been called...
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