Amine synthesis - Study guides, Class notes & Summaries

Mixtures have (higher/lower) melting points than pure substanceslower What is the purpose of sodium acetate solution in the amide synthesis of acetophenetidin?In the acylation reaction, the amine acts as a nucleophile, but we have the ammonium salt present in our solution. This ammonium salt can't act as a nucleophile (it doesn't have non-bonded electrons to use), so we need to add something to deprotonate the ammonium salt. This is the purpose of the sodium acetate - it is just a wea...

EXPH 387 Final Exam - Questions with Verified Answers Endocrine system and nervous system regulates all of Homeostasis Avg size of endocrine system 0.5kg Endocrine organs consist of glands, hormones, and target/receptor organs Glands are classified as either endocrine or exocrine Endocrine system has what kind of glands? Ductless Characteristics of Endocrine system -ductless glands -secrete substances into extracellular spaces -diffuses into bloodstream for transport to target tissues in the b...

what did multicellularity lead to? - need for a highly coordinated system to regulate and integrate the physiological functioning of different cells within one organism mode of hormonal communication? - chemical signalling examples of types on triggers? - location, visual, language, sound, gesture visual trigger - circadian rhythms location trigger - sender to receiver language trigger - chemical signalling gesture trigger - social, stress, sex sound trigger - lactation what is the unit...

What is not used as a source of ATP for a 200-m sprint? correct answers Aerobic use of muscle glycogen What is POMC and NPY/AGRP? correct answers First-order neurons that receive signals from other organs and generate signals that act on other neurons Anorexigenic neurons correct answers Second-order neurons that decrease appetite and increase energy expenditure that leads to less fat storage Orexigenic neurons correct answers second-order neurons that increase appetite and decrease ene...

All the chemical reactions that occur in an organism are called __________. correct answer: metabolism The flow and transformation of energy is called __________. correct answer: energetics Which process in the aerobic metabolism of glucose takes place in the cytosol correct answer: glycolysis The series of integral and peripheral proteins in the inner mitochondria that takes NADH, FADH2, and oxygen and produces ATP and water is the __________. correct answer: electron transport cha...

A&P 2 University Of Memphis -Biol 226 (A&P II) Exam #2 questions with answers Endocrine system - correct answer This system has the following general characteristics: (1) contains ductless glands that produce and secrete chemical messengers called hormones, and (2) the hormones produced travel via the blood stream to specific target cells in order to regulate metabolic processes Fat soluble and non-fat soluble - correct answer What are the two main categories of hormones? This is determined b...

OCR A LEVEL CHEMISTRY ORGANIC SYNTHESIS WITH COMPLETE SOLUTIONS alkene undergoes what type of polymerisation - CORRECT-addition  polymerisation Alkene to alcohol - CORRECT -Electrophilic addition  conc (phosphoric) acid catalyst  steam Haloalkane to nitrile - CORRECT -nucleophilic substitution ethanolic NaCN or KCN heat Haloalkane to primary amine (also makes NH4X) - CORRECT -Nucleophilic  substitution  Excess ethanolic NH3 with no further substitution HEAT under PRESSURE ac...

MCAT Organic Chemistry Questions and Answers | Latest Update | 2024/2025 | 100% Verified What is the product of the oxidation of a primary alcohol? The product is an aldehyde. Further oxidation yields a carboxylic acid. What is the primary reagent used for the reduction of ketones to secondary alcohols? The primary reagent is sodium borohydride (NaBH4) or lithium aluminum hydride (LiAlH4). What is the characteristic reaction of a carboxylic acid with an amine? The reaction ...

Biol 226 (A&P II) Exam #2Endocrine system - correct answer This system has the following general characteristics: (1) contains ductless glands that produce and secrete chemical messengers called hormones, and (2) the hormones produced travel via the blood stream to specific target cells in order to regulate metabolic processes Fat soluble and non-fat soluble - correct answer What are the two main categories of hormones? This is determined by their anatomy. An increase of hormone levels cau...

RIGHTS OF WAY PESTICIDES EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED Growth regulator herbicides disrupt the hormone balance and protein synthesis in plants, causing growth abnormalities. Growth regulators selectively kill broadleaf weeds in grass stands. Grasses generally are tolerant to these chemicals, but injury can occur if herbicides are applied at the wrong growth stage or at high rates. These herbicides translocate to the growing points of the plants, and injury symptom...