Biology 1023 Midterm ULM Questions and Correct Answers
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Course
BIO 1023
Institution
BIO 1023
Simple Leaf may be lobed or divided, but does not form distinct leaflets
Compound Leaf is separated into distinct leaflets, each with its own small petiole (but without an axillary bud)
Pinnately Compound Compound leaf with the leaflets arranged on both sides of the rachis or axis bract
Palmatel...
Biology 1023 Midterm ULM Question s and Corr ect Answers Simple ✅Leaf may be lobed or divided, but does not form distinct leaflets Compound ✅Leaf is separated into distinct leaflets, each with its own small petiole (but without an axillary bud) Pinnately Compound ✅Compound leaf with the leaflets arranged on both sides of the rachis or axis bract Palmately Compound ✅Compound leaf with three or more leaflets radiating fan -like from a common basal point of attachment Bipinnately Compound ✅Compound leaf twice pinnate, the primary leaflets are divided into secondary leaflets, also written 2 -pinnate node Bundled (Fascicled) ✅Condensed or close bundle or cluster Alternate ✅A single leaf is attached at a node Opposite ✅A pair of leaves is attached at at node Whorled ✅3+ leaves are attached at a node Lanceolate ("spear point") ✅length greater than width, broadest at the base, narrowing to the apex, lance -shaped (Ex: ash) Ovate ("oval") ✅more or less rounded at both ends & broadest below the middle, egg -
shaped (Ex: Dogwood) Elliptical ✅ellipse -shaped, narrow at each end, widest at the middle (Ex: Chinese Bearberry) Cordate ("heart") ✅Broadest below the middle & narrow at the apex, heart -shaped (Ex: Redbud) Peltate ✅more or less round, petiole attached at the middle (Ex: Lotus) Oblong ✅longer than wide, sides parallel, rectangular with rounded corners (Ex: Thistle) Linear ✅parallel sides, long & very narrow (Ex: Grasses) Auriculate ("auricle") ✅having auricle(s) (ear -shaped lobe(s)) at the base of leaves or petals (Ex: Rockcress) Obovate ✅Inversely ovate, broader above the middle than below (Ex: Candleberry/Bayberry) Oblanceolate ✅Inversely lanceolate, broader above the middle & tapering to the base (Ex: Inkberry) Spatulate ✅Oblong with the basal end narrowed & the apical end rounded, spoon -
shaped (Ex: Lambstongue) Needle ✅Slender leaf of many conifers (Ex: Pine) Palmately Lobed ✅3+ lobes radiating fan -like form a common base (Ex: Maple) Pinnately Lobed ✅Segments or lobes along each side of a common axis (Ex: Oak) Scale -Like ✅Small appressed leaf or bract (Ex: Cedar) Awl-Like ✅Tapering from the base to a sharp point (Ex: Juniper) Entire ✅Leaf margin that is smooth without teeth or lobes Undulate ✅Leaf margin that is wavy Serrate ✅Leaf margin that has pointed teeth that are directed upward Doubly serrate ✅Serrate leaf margin where the primary teeth support another set of teeth Crenate ✅Leaf margin that has rounded teeth Lobed ✅Segmented leaf having pointed or rounded extensions separated by sinuses Sinus ✅Space/indentation between the lobes of a leaf blade Capsule ✅Dry fruit with multiple seeds & splits along one seam at maturity (Ex: cotton, tulip, iris)
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