Thin layer chromatography Study guides, Class notes & Summaries

1. In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. 2. A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus. 3. In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. C) nucleolus. D) nucleoplasm. E) nucleosome. 4. T...

ABMDI Board Certification withBarbituates Four main categories: 1. Ultra-short-acting - used to induce surgical anesthesia 2. Short-acting 3. Intermediate-acting - used as sedative-hypnotics 4. Long-acting Butalbital Barbituate. Used in treatment of migraines. Phenobarbital Barbituate. Used as anticonvulsant. Pentobarbital Barbituate. Used to relieve intracranial pressure following trauma. Atropine Belladonna Alkaloid. Derived from certain plants including ji...

BTEC APPLIED SCIENCE UNIT 2 AIM C APPLIED SCIENCE CHROMATOGRAPHY 2022/2023 Unit 2 Aim C (chromatography) Chromatography is the observation of how components move at different rates when their mixture is separated and passed through a medium of solution or suspension. The technique is used to separate or sort out the component of mixture. Khroma is a Greek word which means color is chromatography. The process is used to identify whether a chemical substance (mixture) is pure or not. Th...

ASCP- Clinical Chemistry QUESTIONS & ANSWERS ( A+ GRADED 100% VERIFIED) Diurnal variation - ANS Changes in concentration of an analyte based on the time of the day (measured at day vs. night time) What is increased in the AM? (b/c of diurnal variation) - ANS ACTH, Cortisol, Iron ACTH - ANS adrenocorticotropic hormone- stimulates adrenal cortex to secrete CORTISOL How does stress affect chemistry values? - ANS Increase in ACTH, cortisol, and catecholamines Catecholamines - A...

ABMDI Board Certification Barbituates - Four main categories: 1. Ultra-short-acting - used to induce surgical anesthesia 2. Short-acting 3. Intermediate-acting - used as sedative-hypnotics 4. Long-acting Butalbital - Barbituate. Used in treatment of migraines. Phenobarbital - Barbituate. Used as anticonvulsant. Pentobarbital - Barbituate. Used to relieve intracranial pressure following trauma. Atropine - Belladonna Alkaloid. Derived from certain plants including jimson weed and d...

Which of the following aminoacidopathies is NOT caused by an enzyme deficiency? Choose one answer. a. phenylketonuria b. alkaptonuria c. maple syrup disease d. cystinuria d. cystinuria What method is most commonly used to measure total protein? Choose one answer. a. dye binding b. Kjeldahl c. Biuret d. refractometry c. Biuret Which of the following is the preferred reagent for measuring albumin by the dye binding method because there is less interfering substances? Cho...

HOSA Forensic Science: Toxicology and Pharmacology Latest 2023 Graded A+ The study of poisons Toxicology Drug testing with the goal of determining whether drugs were the cause or contributing factor in a death Postmortem Drug testing Testing job applicants and employees for illegal drugs in their system Work Place Drug Testing ADME stands for Absorption, Distribution, Metabolism, and Excretion (The stages in which a drug moves through the body) A large class of drugs distinguished by their a...

MCAT Practice Exam Questions and Answers Latest 2023/2024 | 100% Correct. Thin layer chromatography can use silica plates which are very polar. Will polar or non polar substances have lower Rf values on this plate? Polar substances - they will have a higher affinity for the silica and thus will not travel as far as the non polar substances A titration of a strong acid with a strong base or vice versa has an equivalence point around what pH? 7 What type of bond is usually disrupted during de...

Marquis Reagent - Turns purple with Heroin and Morphine, orange/brown with amphetamines Dillie-Koppanyi - Violet blue with Barbiturates Duquenosis-Levine - Purple with marijuana when chloroform is added Van Urk - Blue/purple with LSD (not appropriate for field tests) Scott Test - Color test for Cocaine. Adding cobalt thiocyanate turns solution blue, add hydrochloric acid and blue turns to pink, then add chloroform and it turns back to blue for positive result. Chromatography - Any...

HOSA Forensic Science: Toxicology and Pharmacology Latest 2023 Graded A+ Toxicology - The study of poisons Postmortem Drug testing - Drug testing with the goal of determining whether drugs were the cause or contributing factor in a death Work Place Drug Testing - Testing job applicants and employees for illegal drugs in their system Absorption, Distribution, Metabolism, and Excretion (The stages in which a drug moves through the body) - ADME stands for Opiates - A large class...