Bio 1305 Exam 4 Fall 2007 Review
What plant evidence was used to solve the Lindbergh kidnapping?
The wood grain and the rings in the wood
What are some differences in monocots and dicots?
Monocots: 1 cotyledon, veins in the leaves are parallel, flower petals are in
multiples of three, arrangement of the vascular bundles in the stems are scattered
Dicots: 2 cotyledons, veins in the leaves are netlike, flower petals are in multiples
of fours and fives, arrangement of the vascular bundles in the stems are in a ring
What are the 3 tissue systems of plants? Describe the structure and function of
Dermal tissue: outer covering of the plant, protects the plant body surface
makes up the rest of the plant, it functions in storage, support,
photosynthesis, mechanical support, and the production of digestive and attractive
Vascular tissue: plant’s plumbing or transport system; its two constituent tissues
are the xylem and phloem which distribute materials throughout the plant
What are the vegetative (nonreproductive) organs of flowering plants?
Roots, stems, and leaves
How do plant cells differ from animal cells?
Plant cells are different from other eukaryotic cells in having chloroplasts or other
plastids, vacuoles, and cellulose-containing cell walls.
How do plant cells communicate with other cells?
What are the 3 types of ground tissues?
Parenchyma: store starch or lipids and some carry out photosynthesis and contain
numerous chloroplasts, serve as packing material and play a vital role is
supporting the stem, thin primary wall
Collenchyma: supporting cells thick primary walls, elongated, no secondary cell
wall, flexible support, provides support to leaf petioles, nonwoody stems, and
Sclerenchyma: include fibers (provide relatively rigid support in wood and other
parts of the plant where they are often organized into bundles ex. Bark of trees)
and sclereids (pack together densely as in a nut’s shell or in some seed coats) that
provide strength and often do not function until they die, thick secondary cell
walls that perform their major function: support
What types of cells make up the xylem?
Conducting cells called Tracheary elements (include tracheids and vessel
elements) which undergo programmed cell death before they assume their
function of transporting water and dissolved minerals
What is indeterminate and determinate growth?
Determinate growth- the growth of the individual and all its parts ceases when the
adult state is reached (characteristic of some plant parts such as leaves, flowers
Indeterminate growth- growth of stems and roots (generated from specific regions
of active cell division and cell expansion)