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

d. Pathogens
e. Heat
5.

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

cortex
11. All are examples of learned behaviors exhibited in animals EXCEPT
a. Social learning
b. Imprinting
c. Associative learning
d. Fixed action pattern
e. Cognition
12. All are forms of animal communication EXCEPT
a. Chemical
b. Displacement
c. Tactile
d. Auditory
e. Visual
13. Mate choice copying is a form of
a. Social learning
b. Associative learning
c. Problem solving
d. Imprinting
e. Cognition
14. Which of these is an example of reciprocal altruism
a. A ground squirrel alerting unaware individuals to retreat to their burrows.
b. Sterile honeybee workers stinging intruders, which helps defend the hive.
c. Naked mole rat tunnelers doing all the labor without getting to mate.
d. A vervet monkey emitting a warning call to alert the rest of the group of danger.
e. A baboon helping an unrelated companion in a fight.
15. In __________ species the __________ are generally more ornamented and __________ than the __________.
a. Monogamous, males, smaller, females
b. Polygynous, females, larger, males
c. Polyandrous, females, larger, males
d. Monogamous, females, larger, males
e. Polyandrous, males, smaller, females
16. An ecosystem diversity
a. Is important in maintaining structure of communities and food webs.
b. Provides life-sustaining services such as nutrient cycling and waste decomposition.
c. Is a source of variations that enable populations to adapt to environmental changes.
d. Includes individual genetic variation within a population and the genetic variation between populations.
e. Reduces the adaptive potential of the species.
17. A key factor driving the extinction vortex is
a. Pollution
b. Agriculture
c. Mining
d. Loss of genetic variability
e. Urban development
18. __________ is the main nutrient element lost through agriculture
a. Nitrogen
b. Carbon dioxide
c. Ammonia
d. Oxygen
e. Sodium
19. __________ tend to be most severely affected by toxic compounds in the environment
a. Herbivores
b. Omnivores
c. Top-level carnivores
d. Second-level carnivores
e. Producers
20. Two issues that arise in biodiversity hot spots are
a. Global change
b. Not enough resources
c. Incompatibility between taxonomic groups
d. a and c
e. b and c