4. Sketch within a cubic unit cell the following planes: a) 122, b) 102.
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- 2. Use the following vocabulary to label and draw a cell membrane: cytoplasm (cell lumen) extra-cellular fluid hydrophobic hydrophilic polar head non-polar tails a) How many O-H groups are there? And are the O-H areas of sucrose polar or non-polar? b) What is the term that is used to discuss how tightly or loosely an atom's nucleus has a hold of its valence electrons? c) Do you think any water molecules move in the opposite direction of the arrow? Explane your answer in detail.7. You want to separate these four proteins in a mixture: Isoelectric point Mol. Weight (kDa) Protein A 4.1 80 Protein B 9.0 81 Protein C 8.8 37 Protein D 3.9 172 Which of the following would be the best order in which to run chromatography columns? A) Anion-exchange at pH 3, then size exclusion B) Cation-exchange at pH 3, then size exclusion C) Cation-exchange at pH 3, then anion-exchange at pH 3 D) Anion-exchange at pH 3, then cation-exchange at pH 3 E) Size exclusion, then cation-exchange at pH 3 F) Size exclusion, then anion-exchange at pH 34. Molecule #4 a)What Group? (Carb, Lipid, Protein, or Nucleic Acid). b)Within the group, how would you classify it? a) -NH b) "NH2 но-р-о онон c)How do you know you correctly classified this macromolecule in its proper group? O=a-o
- 1. What is one structural difference between: Glucose and starch (Choose one answer for the above question from A-D multiple choice) A) Glucose is a chain of 20 amino acids or less, whereas starch is a chain of up to 100 amino acids. B) Glucose is a large, complex molecule whereas starch is a small, simple molecule. C) Glucose is a small, simple molecule whereas starch is a large, complex molecule. D)Glucose is composed of short chains of unsaturated hydrocarbons whereas starch is composed of long chains of saturated hydrocarbons. 2. What is one structural difference between: Peptides and protein (Choose one answer for the above question from A-D multiple choice) A) Peptides are steroids whereas protein is a triglyceride. B) Peptides are liquid at room temperature whereas protein is solid at room temperature. C) Peptides are typically composed of less than 20 amino acids linked together whereas protein is composed of hundreds of amino acids. D) Peptides are monosaccharides…17.15.
- 2. Self-assembled monolayers (SAMs), a type of surface coating, are composed of three key regions a) What are these three regions in the molecule and what are they for? b) Would the use of SAMs produce a smooth or rough surface on your substrate?8. What are the four macromolecules?1. In one sentence describe the general structure and functions of the following biomolecules in a living organism: a) DNA b) ) hemoglobin c) ) triacylglycerides d) cellulose
- (a) What is the amount of cellulose in plant cell? Describe the molec- ular structure of cellulose. (b) Describe the conversion of cellulose to carbon materials.1. The following lipids are important structural components of the cell membrane of fish. Draw the structure of the lipids based on the given components: a) Phosphoric acid, glycerol, serine (amino acid), stearic and linoieic acids. b) Phosphoric acid, glycerol, choline, palmitic and oleic acid.3. a) what are three ways for materials to move in and out of cells?