Hydroxyl group Studienführer, Klassennotizen & Zusammenfassungen

Test Bank For Lehninger Principles of Biochemistry 7th Edition By Favid L. Nelson, Micheal M. Cox| All Chapters| Complete Questions and Answers (LATEST VERSION). 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,...

Essential amino acids are defined as - must be ingested, cannot be made in the body Histidine - Common participant in enzyme catalyzed reactions. Binds Zinc in signaling proteins Isoleucine - Branched chain, muscle metabolism; important for protein stability, not involved in enzyme reactions Leucine - Branched chain, muscle metabolism Lysine - Site for hydroxylation in proteins; Methionine - Sulfur containing; Converted to S-adenosylmethionine (SAM), ...

Ethambutol - ️️It is a comparatively weak antitubercular drug; its principal use is as the secondary drug to avoid resistance problems: a. Rifampicin b. Isoniazid c. Ethambutol d. Pyrazinamide Amino group - ️️Responsible for the broad spectrum activity of amoxicillin and ampicillin a. Benzyl group b. Amino group c. Hydroxyl group d. Methyl group Isoniazid - ️️It is the most powerful and active antitubercular drug a. Rifampicin b. Isoniazid c. Ethambutol d. P...

BIO 2120 Exam 1 - Questions and Answers What is the most abundant molecule in cells? Water Atoms can rotate around ___ bonds but not around ___ bonds single, double The inorganic ions Na+ K+ Mg2+ Ca2+ HPO42- Cl- HCO3- Organic molecule classes 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic acids Carbohydrates Simple sugars and polysaccharides, oligosaccharides (polymers of a few sugars) What is the main structural component of a plant cell wall? Of an animal cell wall? Cellulose for plants Ch...

trait - Answer particular characteristic Which elements make up the macromolecule of DNA? - Answer carbon, nitrogen, oxygen, phosphorous, and hydrogen What is the structure of DNA? - Answer phosphorylated ribose sugar (deoxy ribose) backbone with a nitrogenous base (guanine, adenine, cytosine, thymine) two strands joined together through hydrogen bonds form a double helix What type of bond joins two nucleotides? - Answer phosphodiester bond nucleotide - Answer a nucleic aci...

Isomers - Answer-Two different molecules that have the same chemical formula structural isomers - Answer-Differ in arrangement of atoms. Stereoisomers - Answer-Compounds with the same structural formula but with a different arrangement of the atoms in space. Enantiomers - Answer-isomers that are mirror images of each other diastomers - Answer-stereoisomers that are not mirror images functional groups (8) - Answer-Alkyl, Hydroxyl, Carbonyl, Carboxyl, Amino, Sulfhydryl, Phosphate, Amide Al...

Which of the following amino acids would most likely be soluble in a non polar solvent such as benzene? A) Valine B) Histidine C) Glutamine D) Glycine E) All of the above correct answers Valine What would the overall charge of the following peptide sequence at pH 1 be (Aps-Gly-Arg-His)? A)-1 B) 0 C) 1 D) 2 E) 3 correct answers 3 What charged group(s) are present in glycine at a pH of 7? A)-NH3+ B)-COO- C) -NH2+ D) A and B E) A, B, and C correct answers A and B Which amino...

CBE 555"Which of the following statements are correct? Explain your answers. A. A DNA strand has a polarity because its two ends contain different bases. B. G-C base pairs are more stable than A-T base pairs." - correct answer "A. False. The polarity of a DNA strand usually refers to the orientation of its sugar-phosphate backbone: one end contains a phosphate group, the other end contains a hydroxyl group. B. True. G-C: 3 H-bonds vs A-T: only 2 H-bonds " "Histone proteins are among t...

The hydrophilic domain of glycerophospholipids consist of phosphodiester bridges that link the hydrophobic domain to the hydroxyl group of one of these except; Tyrosine Serine Inositol Choline These phospholipids are asymmetrically concentrated in the inner membrae leaet except; Phosphatidylcholine Phosphatidylinositol Phosphatidylethanolamine Phosphatidylserine 1 / 1 pts Question 3 Phospholipids in bile help to solubilize cholesterol and minimize the precipitation of cholesterol and ...

Which eukaryotic DNA polymerase replicates the lagging strand in the 3ʹ to 5ʹ direction? a. α b. γ c. δ d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. correct answers d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. DNA polymerases can synthesize DNA: a. de novo, by catalyzing the polymerization of free dNTPs. b. by adding dNTPs to complementary dNTPs on a single-stranded DNA. c. by adding dNTPs to a hyd...