PLS170C1 Exam 1 Questions with Correct Answers
What will always lack secondary thickening? - Answer-herbaceous
Which are the name of the specialized cells which regulate water loss and carbon dioxide uptake? - Answer-stomata
Which will complete their life cycle in more than one year? - Answe...
PLS170C1 Exam 1 Questions with
Correct Answers
What will always lack secondary thickening? - Answer-herbaceous
Which are the name of the specialized cells which regulate water loss and carbon
dioxide uptake? - Answer-stomata
Which will complete their life cycle in more than one year? - Answer-perennials and
biennials
These long-stranded, living cells provide strength to leaves and stems. - Answer-
collenchyma
Both herbaceous and woody plants have: - Answer-vascular cambium
Angiosperms are flowering plants which do NOT include: - Answer-conifers
Root hairs are located on which tissue system? - Answer-epidermis
Which of the following is NOT a function of the casparian strip? - Answer-the casparian
strip produces root hairs to improve the effective root surface area for water and mineral
uptake100
Water does NOT move into the xylem by - Answer-the cytoplasm
T or F: Adding solutes to a solution will reduce the water potential and cause water to
flow in that direction (from high to low) - Answer-True
Active water transport into plant roots does NOT - Answer-diffusion by osmosis
Erosion - Answer-reduces the top soil available for agricultural land
T or F: Dicots tend to have taproots. - Answer-True
Which of the following is not a function of stems: - Answer-take up mineral nutrients
from the soil
Which of the following is a not a characteristic of a stem? - Answer-parallel veination
Apical meristems give rise to three primary tissues. Which of the follow is not one of
these tissues? - Answer-Xylem
, T or F: Vascular bundles are composed of xylem and phloem - Answer-True
T or F: Herbaceous dicots have a lot of secondary growth that brings about increases in
stem diameter. - Answer-False
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
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