Amino Acid side chain Study guides, Class notes & Summaries

Which of the following corrctly matches the amino acid with its three-letter abbreviation? A) tryptophan: try B) isoleucine: iso C) cysteine: cys D) asparagine: asn E) valine: van correct answer: C) cysteine: cys Which hydrophobic amino aicd containes sulfur in its side chain? A) alanine B) valine C) phenlyalanine D) proline E) methionine correct answer: E) methionine Which amino acid is achiral (not chiral)? A) alanine B) valine C) glycine D) proline E) methionine c...

Amino Acid - ️️Dipolar compound containing an amino group and a carboxyl group Amino Group - ️️-NH2 Carboxyl Group - ️️-COOH Alpha Carbon - ️️Central carbon atom in amino acid Attached to amino & carboxyl groups, H atom, and side chain Side Chain - ️️The variable component of an amino acid that gives the amino acid its identity and chemical properties also called R-group Chiral - ️️A molecule with a nonsuperimposable mirror image All amino acids (except ...

Which one of the four classes of biologically important molecules does insulin belong to? a. carbohydrates b. proteins c. nucleic acids d. lipids correct answer: b. proteins Which of the following is true? a. the amino acid may be any of the nonpolar, aliphatic amino acids b. the first pKa represents protonation/deprotonation of the amine c. the amino acid cannot be a member of the sulfur-containing classification d. the side chain contains a carboxylate functional group e. the sid...

Test Bank Essential Cell Biology 5th Edition Alberts Hopkin Table of Contents CHAPTER 1: CELLS: THE FUNDAMENTAL UNITS OF LIFE ................................................................ 2 CHAPTER 2: CHEMICAL COMPONENTS OF CELLS ........................................................................ 21 CHAPTER 3: ENERGY, CATALYSIS, AND BIOSYNTHESIS .............................................................. 48 CHAPTER 4: PROTEIN STRUCTURE AND FUNCTION ......................................

Humans produce sweat as a cooling mechanism to maintain a stable internal temperature. Which of the following best explains how the properties of water contribute to this physiological process? - ANSWER The high heat of vaporization of water allows the body to remove excess heat through a phase change of water from liquid to gas A student placed a semipermeable membrane inside a U-shaped channel with two chambers, as shown. The membrane permits the movement of water but not salt. The...

What is biochemistry? - correct answer Biochemistry is the study of the molecules and chemical reactions of life. -it uises the principles of one science (chemistry) to explain the other science (biology) at the molecular level. What is the difference between chemical reactions in flasks and biochemical reactions in cells? - correct answer Biochemical reactions in cells are cascade reactions and are regulated. What are the six nonmetallic elements that account for over 97% of the weig...

Portage Learning BIOD 152 A&P 2 Final Exam 2023/2024 Identify the parts of the neuron shown in the diagram below a. dendrite b. cell body c. nucleus List the four parts of the human brain The human brain is made up of the cerebral hemispheres, diencephalon, brain stem, andcerebellum. List and describe the 3 meninges of the human brain. The leathery dura mater is the double-layered outer meninx. The middle arachnoid meninx is a loose layer separated from the dura...

Test Bank for Biochemistry A Short Course 4th Edition John L. Tymoczko TEST BANK FOR BIOCHEMISTRY A SHORT COURSE JOHN L. TYMOCZKO Chapter 3 Amino Acids Matching Questions Use the following to answer questions 1–10: Choose the correct answer from the list below. Not all of the answers will be used. Answers may be used more than once. 1. a) l amino acids 2. b) water 3. c) protons 4. d) zwitterions 5. e) arginine 6. f) serine 7. g) tyrosine 8. h) cysteine 9. i)...

Biology - The study of life and living organisms The cell has to replicate its DNA - What must happen for mitosis to take place? exoskeleton - Arthropods have a(n) ________ that has allowed them to inhabit almost every environment on Earth (HERDROAR) Homeostasis Energy Production Reproduction Development and Growth Response to stimuli Order Adaptation Regulation - Characteristics of life Sun - What is the energy source for life on Earth? Energy - -This comes from the sun -Next it ...

What are proteins? - Polymers of amino acids covalently bonded through peptide bonds into a chain What are the parts of an amino acid? - central carbon single hydrogen carboxyl group amino group R-group {side chain} What is the significance of the R-group {side chain}? - distinguishes one amino acid from another and dictates an amino acid's properties What is an oligopeptide? - less than 50 amino acids What is a polypeptide? - more than 50 amino acids How are peptide bonds...