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EXAM 2- BIO 156 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS 100% CORRECT | UPDATED 2025
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EXAM 2- BIO 156 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS 100% CORRECT | UPDATED 2025
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EXAM 2- BIO 156 QUESTIONS ANDANSWERS WITH COMPLETE SOLUTIONS
100% CORRECT | UPDATED 2025
cellulose - ANSWER Plant cell walls consist of ______.
Dermal - ANSWER Plant tissue type; Forms the epidermis, which is usually one
cell layer thick, outer protective cover; Wax and bark (non-living)
Ground - ANSWER Plant tissue type; Forms several internal tissue types
(photosynthesis, storage, structural support). For storage, photosynthesis and
secretion.
Vascular - ANSWER Plant tissue type; Conducts water, dissolved nutrients,
carbohydrates, hormones.
Primary cell wall - ANSWER Found in all plant cells.
Secondary cell wall - ANSWER Found in some plant cells. Additional layers of
cellulose and lignin. Increase mechanical strength of wall.
Meristems - ANSWER (specialized cell type) clumps of small cells with dense
cytoplasm and large nuclei; act as stem cells do in animals
One cell divides producing a differentiating cell and another that remains
meristematic. - ANSWER How are meristems produced?
,Apical meristems - ANSWER located at tips of stems and roots; elongate shoots
and roots; Produce primary tissues; are delicate cells that need protection.
root - ANSWER Root cap protects ____ apical meristem.
Casparian strips - ANSWER The endodermis is impregnated with bands of
waterproof suberin called _________. Blocks any further passage through the cell
wall.
shoot - ANSWER Leaf primordia protect _____ apical meristem.
Primary meristems - ANSWER Apical meristems produce the three tissue
systems by first initiating ______.
Protoderm, procambium, ground meristem - ANSWER What are the three
primary meristems?
protoderm meristem - ANSWER forms epidermis
Procambium meristem - ANSWER produces primary vascular tissues
ground meristem - ANSWER differentiates into ground tissue
, Intercalary meristems - ANSWER Some plants have ________. Found in stem
internode and add to internode length.term-74
Lateral meristems - ANSWER Found in plants that exhibit secondary growth;
increase shoot and root diameter; Produce secondary tissues.
Cork cambium and vascular cambium - ANSWER Woody plants have two types
of lateral meristems:
Cork cambium - ANSWER produces outer bark
Vascular cambium - ANSWER produces 2° vascular tissue
2° xylem - ANSWER ______ is the main component of wood.
Guard cells - ANSWER Dermal tissue cell type; paired sausage-shaped cells;
Flank a stoma, or epidermal opening, passageway for oxygen, carbon dioxide and
water vapor.
Trichomes - ANSWER Dermal tissue cell type; cellular or multicellular hairlike
outgrowths of the epidermis; Keep leaf surfaces cool and reduce evaporation by
covering stomatal openings. (patterning is genetic)
Roots hairs - ANSWER Dermal tissue cell type; tubular extensions of individual
epidermal cells; Greatly increase the root's surface area and efficiency of
absorption.
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