Understanding Plant Responses to Light and Hormones

Quiz Ch. 39, 49, 51, 56
1. In response to light, phytochrome undergoes a change in shape that leads to the activation of __________ an enzyme that produces the second messenger cyclic GMP. a. Ca 2+ b. K 2+ c. Protein kinase d. Na 2+ e. Guanylyl cyclase
2. Light-induced de-etiolation involves all of the following EXCEPT
a. Slowed stem elongation
b. Expanded leaves
c. Elongated roots
d. Little evaporation loss of water
e. Production of chlorophyll
3. Plant hormones do all of the following EXCEPT
a. Stimulates cell elongation
b. Stimulates plant cell division
c. Increases the progress of apoptosis
d. Induces leaf abscission
e. Mediates fruit ripening
4. An environmental biotic stress that plants encounter is
a. Drought
b. Flooding
c. Salt

What information regarding a hypersensitive response is NOT correct.
a. Provides protection against a diversity of pathogens that lasts for days
b. Initiated when pathogen effectors bind to R proteins
c. Stimulates the production of photoalexins
d. Induces production of PR proteins
e. Stimulates the formation of lignin
6. All animals have nervous systems that contain bundles of neurons organized into nerves and often a brain EXCEPT
a. Sea star
b. Planarian
c. Hydra
d. Squid
e. Insect
7. Homeostasis often relies on cooperation between the
a. Central nervous system
b. Motor system
c. Autonomic nervous system
d. a and b
e. b and c
8. The sympathetic division of the autonomic nervous system causes all actions on target organs EXCEPT
a. Slows heart
b. Relaxes bronchi in lungs
c. Inhibits emptying of bladder
d. Stimulates adrenal medulla
e. Dilates pupil of eye
9. The anatomical basis for advanced information processing in avians appears to be the grouping of nuclei within the
a. Thalamus
b. Midbrain
c. Cerebellum
d. Pallium
e. Hindbrain
10. The brain structure with the most vital role in storing emotional memory is the
a. Hippocampus
b. Amygdala
c. Thalamus
d. Hypothalamus
e. Cerebral