Conjugated bonds - Study guides, Class notes & Summaries

Biochemistry - Exam 1 Practice Questions & Answers 2023/2024 A+ 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 In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuc...

Mass spectrometry correct answer: Technique that sorts ions based on their mass to charge ratio Electron ionization correct answer: -Also known as hard ionization -Very energetic, produces fragments ("daughter ions") Electrospray ionization correct answer: -Also known as soft ionization -Species remains intact, form ions by attaching H+ (+1 amu) or Na+ (+23 amu) 3:1 correct answer: Mass spectrometry ratio that appears for Cl 1:1 correct answer: Mass spectrometry ratio that a...

Test Bank for Organic Chemistry 4e 4th Edition by David R. Klein. ISBN-13: 9594 Full chapters test bank PDF TABLE OF CONTENTS 1 A Review of General Chemistry: Electrons, Bonds, and Molecular Properties 1 1.1 Introduction to Organic Chemistry 2 1.2 The Structural Theory of Matter 3 1.3 Electrons, Bonds, and Lewis Structures 4 1.4 Identifying Formal Charges 7 1.5 Induction and Polar Covalent Bonds 8 1.6 Reading Bond-Line Structures 11 1.7 Atomic Orbitals 14 1.8 Valence Bond Theory 17 1.9 Molecular...

BIOC 3560 Midterm Exam Questions With Answers Latest 2023/2024 (Graded 100%). Select the statement that accurately describes an O2-binding curve of a globin. (A) The heme-O2 binding curve is a sigmoidal curve. (B) Hemoglobin and myoglobin have reciprocal pO2-binding curves. (C) Hemoglobin has a sigmoidal O2-binding curve. *** (D) Myoglobin has a sigmoidal O2-binding curve. (E) All of the above. 2. Which statement is false with respect to enzyme phosphorylation? (A) The modification is irr...

Chapter 3 -- Alkenes and Alkynes MULTIPLE CHOICE 1. Which of the following dienes can be classified as conjugated? A) CH3CH=C=CH2 B) CH3CH=CHCH=CH2 C) CH2=CHCH2CH=CH2 D) CH3CH=CHCH2CH2CH=CH2 E) CH2=C=CH2 ANS: B TOP: Alkenes and Alkynes: Nomenclature and Structure 2. Which of the following molecular formulas could not represent an alkene? A) C5H10 B) C7H14 C) C10H20 D) C27H56 E) C31H62 ANS: D TOP: Alkenes and Alkynes: Nomenclature and Structure 3. What...

Step 1 - Rapid Review + Goljan + Pathoma High Yield .___ accumulation causes cataracts, neuropathy, retinopathy in DM - ANSWER-Sorbitol .___ activates glycogen phosphorylase - ANSWER-Glucagon .___ activates glycogen synthase - ANSWER-Insulin .___ and ___ enhance Na/K-ATPase; >> hypokalemia - ANSWER-Albuterol, Insulin .___ and ___ inhibit Na/K-ATPase; >> hyperkalemia - ANSWER-B-Blockers, Succinylcholine .___ and ___ require a carrier protein to cross memb...

BIOC3560 F17 Midterm Exam Questions With Answers Latest 2023/2024. Select the statement that accurately describes an O2-binding curve of a globin. (A) The heme-O2 binding curve is a sigmoidal curve. (B) Hemoglobin and myoglobin have reciprocal pO2-binding curves. (C) Hemoglobin has a sigmoidal O2-binding curve. *** (D) Myoglobin has a sigmoidal O2-binding curve. (E) All of the above. 2. Which statement is false with respect to enzyme phosphorylation? (A) The modification is irreversible. ...

A hydrophobic amino acid R group would be found where in a protein? - ANSWEROn the inside of the folded chain, away from water What happens when a protein denatures? - ANSWERIt hydrolyzes bonds, ionic bonds, hydrophobic interactions, disulfide bridges, and peptide bonds are disrupted What do enzymes do? - ANSWERSupply energy to start a chemical reaction In an experiment, changing the pH from 7 to 6 resulted in an increase in product formation. From this we could conclude that - ANSWERTh...

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...

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 potassium. Answ...