PLS170C1 Final Test Questions with Correct Answers
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Course
PLS170C1
Institution
PLS170C1
PLS170C1 Final Test Questions with Correct Answers
Which of the following have a random assortment of vascular bundles? - Answer-herbaceous monocots
Wilting is NOT the result of - Answer-increase hydrostatic pressure
Plasmolysis - Answer-causes the plasma membrane to separate and pull away f...
PLS170C1 Final Test Questions with
Correct Answers
Which of the following have a random assortment of vascular bundles? - Answer-
herbaceous monocots
Wilting is NOT the result of - Answer-increase hydrostatic pressure
Plasmolysis - Answer-causes the plasma membrane to separate and pull away from the
cell wall.
This group of plants derives the most significant benefits of secondary xylem. - Answer-
Woody dicots
T or F: Bark is made of crushed secondary phloem and periderm - Answer-True
T or F: Annual growth rings are the result of one year of secondary xylem - Answer-True
The study of tree rings is - Answer-dendrochronology
Stolons are - Answer-horizontal stems modified to facilitate plant distribution
Thorns are - Answer-modified stems
Which tissue layer in the leaf contains stomatal pores? - Answer-epidermis
T or F: Translocation is the process whereby water vapor is expelled from the leaf. -
Answer-False
Roses and other flowering plants with net-veined leaves are examples of ________. -
Answer-Dicots
Cacti spines result from a modification of the same plant organ that produces - Answer-
Leaves
A _______ leaf has multiple blades attached to the petiole. - Answer-Compound
The veins of a leaf consist of _____________________. - Answer-vascular cells
Guard cells - Answer-control water loss and carbon dioxide uptake
, The xylem-tension-cohesion theory explains how __________________. - Answer-
water is transported in the xylem
When sugars are actively transported into a cell, what happens to the turgor pressure
inside that cell? - Answer-It increases, because water enters and affects turgor
pressure.
The pressure flow model of translocation depends entirely on the existence of
mechanisms for loading sugars into phloem at the _______ regions and for unloading
them at the _______ regions. - Answer-source; sink
Water held back by a dam represents what kind of energy? - Answer-Potential
T or F: The conversion of radiant energy into chemical energy during photosynthesis is
an example of the First Law of Thermodynamics. - Answer-True
The ultimate source of energy to support most life on Earth is ______________. -
Answer-Sunlight
How fast a chemical reaction occurs in a cell depends mostly on which molecules in the
cell? - Answer-Enzymes
Which feature characterizes angiosperms as a group? - Answer-They produce flowers
and fruit
Which group of organisms produces seeds in cones and includes pines, cedars, and
redwoods? - Answer-Gymnosperms
Which of the following is NOT a fundamental property of life? - Answer-Cellular
organization with organelles, Responds to environmental cues, Inability to
communicate, Growth and development
Correct Answer: inability to communicate
All life is classified into categories based on genetic and physical similarities. Which of
the following categories represents the highest order of similarity (ie. which is the most
refined level of classification?) - Answer-Genus
Which of the 6 Kingdoms of living things includes single celled organisms that are
extremely adapted to very harsh environments? - Answer-Archaebacteria
Which of the following taxon names describes non-vascular plants that lack lignin and
include the mosses? - Answer-Bryophytes
A hypothesis is: - Answer-A question that can be tested
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