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The term "gymnosperm" is based on the Greek root words meaning
"naked and "seed"
Ginkoe biloba is A. an angiosperm B. A gymnosperm C. A bryophyte D. a monocot
A gymnosperm
Polar molecules cling to charges on surfaces A. Cohesion tension model B. pressure flow model C. adhesion D. transpiration E. root pressure
Adhesion
Xylem vessels, found in angiosperms, have a much greater internal diameter than tracheids, the only xylem conducting gymnosperms. The tallest living trees, redwoods are gymnosperms. Which of the following is an advantage of tracheids over vessels for long distance transport to great heights? A. adhesive forces are proportionally greater in wider cylinders B. The smaller the diameter of the xylem, the more likely guttation will occur C. Cohesive forces are greater in wide tubes of the same height D. Adhesive forces are proportionally greater in narrower cylinders than in wider cylinders
Adhesive forces are proportionally greater in narrower cylinders than in wider cylinders
Which of these are characteristics of plants? A. multicellular with specialized tissues and organs B. photosynthesis and contain chlorophylls a and b C. protect the developing embryo from desiccation D. all of the above
All of the above
In general, which of these is found in most seed plants? A. complex vascular tissue B. pollen grains that are not flagellated C. retention of female gametophyte within an ovule D. All of these are correct
All of them
Contains sperm A. archegonium B. antheridium C. liverwort D. gametophyte E. sporangium
Antheridium
Contains egg A. archegonium B. antheridium C. liverwort D. gametophyte E. sporangium
Archegonium
The casparian strip is found
Around the endodermis
Which of the following plants were important to our present-day supply of coal? A. bryophytes B. seedless vascular plants C. gymnosperms D. angiosperms E. Both b and c are correct
Both b and c are correct
All of the following normally enter the plant through the roots except A. Carbon dioxide B. nitrogen C. potassium D. water E. calcium
Carbon dioxide
Model explaining xylem transport from root hairs to leaves A. Cohesion tension model B. pressure flow model C. adhesion D. transpiration E. root pressure
Cohesion tension model
Dinosaurs fed on
Cycad seeds
In the fern life cycle, the ______ is dominant
Diploid sporophyte
Which cells in a root have a protective barrier to the vascular system where all materials must move through the symplast of a cell? A. pericycle B. cortex C. epidermis D. endodermis E. root cap
Endodermis
A species in the phylum gnetophyta which has species in Utah and china and an important pharmaceutical compound
Ephedra
T or F In heterospory, the spores are all the same
F
Small and heart shaped in ferns A. archegonium B. antheridium C. liverwort D. gametophyte E. sporangium
Gametophyte
Which of the following would tend to increase transpiration? A. A rainstorm B. sunken stomata C. a thicker cuticle D. higher stomatal density
Higher stomatal density
Cutting down rain forests can lead to
Increased atmospheric carbon dioxide
Has gemmae cups A. archegonium B. antheridium C. liverwort D. gametophyte E. sporangium
Liverwort
Root hairs are found in the zone of
Maturation
Which of the following produces new cells and is found both at the apex of roots and shoots A. epidermal B. meristem C. vascular D. ground
Meristem
A juicy bite of an apple consists mostly of
Parenchyma cells
Lateral roots originate in the
Pericycle
Which of these plant tissue types is composed of sieve tube cells and companion cells that transport organic nutrients synthesized in the leaves? A. Xylem B. Phloem C. meristem D. collenchyma E. vessel elements
Phloem
In addition to seeds, which of the following characteristics are unique to the seed-producing plants? A. microphylls B. some protection of egg C. pollen D. wind dispersal E. meiosis
Pollen
A nutrient which is important in guard cell opening and closing
Potassium
Model explaining transport in sieve tubes of phloem A. Cohesion tension model B. pressure flow model C. adhesion D. transpiration E. root pressure
Pressure flow model
Water enters the root and is pushed upward, which sometimes causes guttation A. Cohesion tension model B. pressure flow model C. adhesion D. transpiration E. root pressure
Root pressure
Secondary thickening of stems occur in A. all angiosperms B. most monocots C. some eudicots D. all eudicots
Some eudicots
Spores formed within by meiosis A. archegonium B. antheridium C. liverwort D. gametophyte E. sporangium
Sporangium
In bryophytes, sperm usually move from the antheridium to the archegonium by
Swimming
T or F Cycads have swimming sperm
T
T or F The cells of the archegonium in moss are haploid
T
T or F Water lilies have aerenchyma cells
T
T or F Pneumatophores have lenticels
T
Choose the option that best describes the relationship between the cell wall thickness of parenchyma cells vs. sclerenchyma cells A. The cell walls of parenchyma cells are thinner than those of sclerenchyma cells B. The cell walls of parenchyma cells are thicker than those of sclerenchyma cells C. The cell walls of both types of cells are roughly equal D. The thickness of the cell walls for both types of cells is to variable for a comparison to be made
The cell walls of parenchyma cells are thinner than those of sclerenchyma cells
Which of the following is true concerning flowering plants? A. The flower includes sporophyte tissue B. The gametophyte generation is dominant C. The gametophyte generation is what we see looking at a large plant D. The sporophyte generation is not photosynthetic
The flower includes sporophyte tissue
Plants loss of water by evaporation through the stomata of leaves. A. Cohesion tension model B. pressure flow model C. adhesion D. transpiration E. root pressure
Transpiration
What is the main force by which most of the water within xylem vessels moves towards the top of a tree? A. Phloem pressure B. atmospheric pressure on roots C. transpiration of water through stomata D. the force of root pressure E. osmosis in the root
Transpiration of water through stomata
Characteristics of eudicots include all EXCEPT A. two cotyledons B. leaves with netted veins C. flower parts in 4s or 5s or their multiples D. vascular bundles scattered in the stem
Vascular bundles scattered in the stem
All of the following are similarities between plants and algae except A. chlorophyll pigments B. vascular tissue C. cell wall D. starch storage
Vascular tissue
Which of these plant tissue types is composed of hollow nonliving sclerenchyma cells that transport organic nutrients synthesized in the leaves? A. xylem B. phloem C. ground tissue D. epidermal tissue
Xylem
Which of the following tissues can be modified into guard cells? A. epidermal tissue B. ground tissue C. meristem D. vascular tissue
vascular tissue
Which of the following tissues transports water and nutrients within the plant? A. epidermal tissue B. ground tissue C. meristem D. vascular tissue
vascular tissue