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USABO Exam Questions and Answers
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USABO Exam Questions and Answers
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USABO Exam Questions and Answersiodine deficiency - Answer -goiter
ethane - Answer -C2H6
propane - Answer -C3H8
butane - Answer -C4H10
methane - Answer -CH4
enantiomers - Answer -mirror image isomers
hydroxyl - Answer --OH
carbonyl - Answer -C=O
carboxyl - Answer -O=C-OH
amino - Answer -NH2
sulfhydryl - Answer --SH
sulfhydryls called - Answer -thiols
carbonyl within structure - Answer -ketone
carbonyl at end - Answer -aldehyde
phosphate - Answer -PO4 3-
maltose - Answer -glucose + glucose
lactose - Answer -glucose + galactose
sucrose - Answer -glucose + fructose
, unbranched starch - Answer -amylose
branched starch - Answer -amylopectin
more branched than amylopectin - Answer -glycogen
storage of starch - Answer -granules
circular RNA molecules that infect plants - Answer -viroids
tumor virus causing cervical cancer - Answer -papilloma virus
tumor virus causing several types of cancer like Burkitt's lymphoma - Answer -epstein-
bar
tumor virus causing adult leukemia - Answer -HTLV-1 Retrovirus
stem segments between nodes - Answer -internodes
where leaves are attached - Answer -nodes
terminal bud, located near shoot tip and causes elongation of a young shoot - Answer -
axillary bud
maintains dormancy in most non apical buds - Answer -apical dominance
parallel veins - Answer -monocots
3 plant tissues - Answer -dermal vascular ground
woody plants' dermis - Answer -periderm
nonwoody plants' dermis - Answer -epidermis
outgrowths of shoot epidermis, help with insect defense - Answer -trichome
internal ground tissue - Answer -pith
external ground tissue - Answer -cortex
least specialized, thin and flexible primary wall, no secondary wall, metabolic functions -
Answer -parenchyma
grouped in strands, help support young parts of shoot, thicker and uneven primary wall,
no secondary wall, flexible support - Answer -collenchyma
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