Biomg - Study guides, Class notes & Summaries

Henderson-Hasselbalch Equation Correct Answer-pH = pka + log([un]/[pro]) higher pka = higher affinity for H+ pH > pka, H+ is predominantly off pH < pka, H+ is predominantly on Ionizable Groups Correct Answer-Terminal Carboxyl Terminal Amino Acidic AA (ASP and GLU) Basic AA (HIS, CYS, LYS, TYR, and ARG) Aliphatic AA Correct Answer-Carbon based: "Guys! Alissa Values Likes on Instagram1" GLY, ALA, VAL LEU, ILE Aromatic AA Correct Answer-Form rings: "Pheobe is Tyred o...

Out of approximately 21,000 protein-coding genes in humans, how many are approoxiamtely devoted to cell signaling? Correct Answer-More than 7,000 What types of molecules can Signaling Molecules or Ligands be? (General Principle of Signaling) Correct Answer-Proteins, Peptides, Amino Acids, Nucleotides, Steroids, Fatty Acid Derivatives, Gases What must a cell have in order to accept a signal? (General Principle of Signaling) Correct Answer-A receptor What processes does the intracellular ...

What is the most important thing change in Gibbs free energy tells us? What does a negative value mean and what does a positive value mean? - how spontaneous a reaction is negative delta G = spontaneous, energy is released, exergonic positive delta G = non-spontaneous, energy is consumed, endergonic what does enthalpy represent? what does it mean when it's positive vs negative? - delta H is change in enthalpy, which is the heat content of the reacting system. It reflects the number and ...

The process of protein sorting Correct Answer-1. transport through nuclear pores 2. Across membranes 3. Transport through vesicles Signal Sequences Correct Answer-Direct a protein Transport to the nucleus Correct Answer-- nuclear pores - ~30kDa can go through by diffusion - unstructured protein loops fill it Nuclear Localization Signal (NLS) Correct Answer-A short amino acid sequence that marks a protein for delivery to the nucleus. drives nuclear transport Correct Answer-GTP hyd...

BIOMG 3300 Unit 3 Objectives Questions with Correct Answers.

bicoid - these genes encode cytoplasmic determinants in the anterior tip of the embryo syncytial blastoderm - the stage of embryonic development during which bicoid expression is significantly reduced syncytial blastoderm - stage of embryonic development in which nuclei move to the periphery of the cell, forming a single layer, with each nuclei barely separated from its neighbors cellular blastoderm - stage of embryonic development after cellularization and before gastrulation bicoid...

Resolution Correct Answer-small dist b/t 2 pts can be distinguished; D = .61λ/Nsinα, want lower D; Light microscope 200nM Bright field microscopy Correct Answer-normal light type Phase-contrast Correct Answer-altered phase interference of unobstructed light; looks like cells are surrounded by light DIC Correct Answer-3D looking cells Confocal Correct Answer-3D imaging with fluorescence, progessively capture full surface in focus by removing out of focus; normal point-scanning vs....

BIOMG 3300 Unit 11 Questions with Correct Answers.

Bond between phosphate and sugar? - phosphodiester Bond between sugar and base? - glycosidic Non-covalent interactions? - H bonding, base stacking, electrostatic interactions Chargaff rules? - purine content = pyrimidine content adenine = thymine guanine = cytosine

reaction catalyzed by glycogen phosphorylase, know structures Correct Answer-a1->4 glycosidic linkage between glucose residues at a nonreducing end of glycogen is cleaved by Pi--> shortens chain by one glucose (n)glucose--> (n-1)glucose + glucose-1-phosphate What is an example of a phosphorolysis reaction? Why is phosphorolysis is more energetically efficient than hydrolysis? Correct Answer-Ex: glycogen phosphorylase shortening a glycogen chain In phosphorolysis some of the e...