|Plant Physiology (Biology 327) - Dr. Stephen G. Saupe; College of St. Benedict/ St. John's University; Biology Department; Collegeville, MN 56321; (320) 363 - 2782; (320) 363 - 3202, fax; firstname.lastname@example.org|
Exam Questions: Plant Way of Life
What is plant physiology?
The evolution of the autotrophic mode
of nutrition by plants required the evolution of a variety of specialized
structures for this process. identify the problems and how plants
Non-motile organisms such as plants
must be able to position themselves in their environment. Describe why
and how plants do this. Cite specific examples including:
mechanism for increasing the odds of germinating in a favorable
environment, positioning the axis (gravitropism), and fine-turning
mechanisms such as thigmomorphogenesis, apical dominance, phototropism,
skototropism, leaf mosaics, phyllotaxy, solar tracking, etc.
Describe and explain the mechanism
plants use to exploit the environment for resources. Cite specific
examples such as dendritic form, indeterminate growth, asexual reproduction,
and foraging strategies.
Surface-to-volume ratios are very
important in biology. Explain what is meant by a S/V ratio and how
they are influenced by size and shape. Give several examples of the
importance of S/V ratios in biological systems, especially plants. Be
sure to site at lest one example of the need to have a high S/V ratio and
one example where a low S/V is important.
Compare and contrast plants and animals
in terms of body design (architectural vs. mechanical), mode of nutrition,
evolutionary pressures for motility, reproduction, wastes and waste
disposal. Support your conclusions (where pertinent)_ with references
to non-motile animals such as the corals.
Non-motile organisms such as plant must
protect themselves form a variety of physical and biological dangers in
their environment. identify the problems that confront plants, some
specific dangers and how plants cope with these situations.
Are plants intelligent? Why might someone consider plants to be intelligent? Why might someone disagree? What do you think and why?
01/29/2009 � Copyright by SG