Zwitterion - Study guides, Class notes & Summaries

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 acids. - Essential When two amino acids join together, they are joined by an a...

ACS BIOCHEMISTRY FINAL EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS 2023

©THEBRIGHT EXAM STUDY SOLUTIONS 8/22/2024 12:54 PM MCAT Biochemistry Review Exam Questions And Correct Answers Amino Acid - answerDipolar compound containing an amino group and a carboxyl group Amino Group - answer-NH2 Carboxyl Group - answer-COOH Alpha Carbon - answerCentral carbon atom in amino acid Attached to amino & carboxyl groups, H atom, and side chain Side Chain - answerThe variable component of an amino acid that gives the amino acid its identity and chemical properties also...

Biochemistry Test 1 questions and answers biochemistry a discipline in biochemistry; is the description of molecules in biology/chemistry of proteins molecular biology a discipline in biochemistry; the manipulation of DNA, genetics cell biology a discipline in biochemistry; larger scale, functions and mechanisms within a cell/cell energetics cellulose a natural polymer; found in plants for storage glycogen a natural polymer; found in animals for storage p...

The net charge of the zwitterion form of Gly is ___ - Zero When a peptide bond is formed, an ___ reacts with a carboxylate group - Amino Group At a pH above the pKa, the phenol group of tyrosine is - Deprotonated In the tripeptide Lys-Pro-Ile, there are ___ charged groups at pH 7 - Three at a pH below the pKa, the ε-amino group of lysine is - Protonated at a pH below the pKa, the β-carboxylate group of Asp is ___ - uncharged; Protonated In the peptide Trp-Ser-Val, valine is at the - C-te...

The net charge of the zwitterion form of Gly is ___ - Zero When a peptide bond is formed, an ___ reacts with a carboxylate group - Amino Group At a pH above the pKa, the phenol group of tyrosine is - Deprotonated In the tripeptide Lys-Pro-Ile, there are ___ charged groups at pH 7 - Three at a pH below the pKa, the ε-amino group of lysine is - Protonated at a pH below the pKa, the β-carboxylate group of Asp is ___ - uncharged; Protonated In the peptide Trp-Ser-Val, valine is at the - C-te...

The net charge of the zwitterion form of Gly is ___ - Zero When a peptide bond is formed, an ___ reacts with a carboxylate group - Amino Group At a pH above the pKa, the phenol group of tyrosine is - Deprotonated In the tripeptide Lys-Pro-Ile, there are ___ charged groups at pH 7 - Three at a pH below the pKa, the ε-amino group of lysine is - Protonated at a pH below the pKa, the β-carboxylate group of Asp is ___ - uncharged; Protonated In the peptide Trp-Ser-Val, valine is at the - C-te...

In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. - answer-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 - answer-the nucleus In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. C) nucleolus. D) n...

BCH2333 - Building Blocks Part 2 (Thermodynamics, Nucleic Acids, Amino Acids & Peptides, Carbohydrates, and Lipids) Quantitation of pI - Answer- pI can be quantified by Henderson-Hasselbalch equation: (pKa^-1 + pKa^+1)/2 the average of the pKas relates to the ionization of the zwitterion pI of Proteins (polyampholytes) - Answer- Proteins contain up to hundreds of pH-responsive groups; when the net charge of protein is 0, anions balance cations and the pI is reached @pH<pI, net charg...

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 ...