Zwitterion Study guides, Class notes & Summaries

Biochemistry comprehensive examination with 100% verified answers 2024 All amino acids contain a central carbon, a side chain (R group), an amino group and a __________ group. Carboxyl Amino acids can undergo a proton transfer, thus giving both a (+) and (-) charge. This molecular state is called the ________. Zwitterion Amino acid that are unable to be synthesised from biochemical pathways within a cell have to be consumed through dietary intake. These are called _______ amino ac...

Amino Acids - The building blocks of proteins. Amino Acids - Contain a carboxylic acid group and and an amino acid group on the alpha carbon. Amino Acids - are ionized in solution. Amino Acids - Each contain a different side group (R). Nonpolar - Hydrocarbon side chains (hydrophobic) Polar (neutral) - Polar or ionic side chains (hydrophilic) Polar (acidic) - Acidic side chains (hydrophilic) Polar (basic) - -NH2 side chains (hydrophilic) H, an alkyl group, or aromatic - A ...

ACS Biochemistry Exam Questions With Complete Solutions Metabolism (catabolism and anabolism) - ANSWERS Metabolism: sum of total chemical reactions in an organism, also the method by which cells extract and use energy from their environment. Catabolism: The process by which stored nutrients and ingested foods are converted to a usable form of energy. It produces simple products CO2, H2O, NH3, and building blocks such as sugars and fats that are used in anabolism. Anabolism: t...

Biochemistry: Concepts and Connections (Appling et al.) Chapter 1 Biochemistry and the Language of Chemistry 1) The water content in the human body is approximately: A) 90%. B) 80%. C) 70%. D) 60%. E) 50%. Answer: C 2) The four most abundant chemical elements in living systems are: A) hydrogen, oxygen, sulfur and phosphorus. B) hydrogen, carbon, nitrogen and oxygen. C) sodium, potassium, carbon and oxygen. D) sodium, potassium, nitrogen and sulfur. E) carbon, nitrogen, oxygen and potass...

In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. nucleoid 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 the nucleus 00:34 01:10 In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. C) nucleolus. D) nuc...

pKa (chapter 3) correct answers measure of the tendency of a group to give up a proton (acidity); tendency decreases tenfold as pKa increases by one unit thioester bond (1) correct answers compounds with functional group C-S-CoA-C (eg, in acetyl-CoA) zwitterion (3) correct answers dipolar ion with both positive and negative groups but overall neutral charge; can act as either an acid or base Isoelectric point (pI) (chapter 3) correct answers the characteristic pH at which the net electr...

A copy of answers and feedback for the laboratory of organic chemistry course.

aamc official sample test Questions and Answers 2022 with complete solutions Document Content and Description Below aamc official sample test Questions and Answers 2022 with complete solutions For the -NH group on 1-methylpiperazine to be deprotonated, which would best be accomplished by a strong base or a stron g acid -Answer- best be accomplished by a strong base like NaOH. antagonist -Answer- used to refer to a drug which under some conditions behaves as a substance that binds to a receptor...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

TestBank Lehninger Principles of Biochemistry 7e Nelson TB TestBank Lehninger Principles of Biochemistry 7e Nelson TBPage 1 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 d...