BMS 300 Exam 1 (A+ GRADED)

Water has a dipole moment because: correct answers Oxygen is more electronegative and pulls electrons from hydrogen An amphipathic molecule, like soap, can interact with: correct answers Water and Lipids Which of the following contributes to the surface tension of water? correct answers -Water molecules experience forces from all directions -Water molecules at the air-water interface experiences sideward and downward forces -Water molecules are in constant motion Ice floats because: correct answers -Ice is less dense -The crystallized structure of ice is well organized Two solutions are separated by a membrane that contains channels only permeable to water. The solution in the left-hand compartment contains 30 millimolar NaCl which dissociates completely, and the right hand compartment contains 30 millimolar glucose which does not dissociate. Which of the following statements is correct? correct answers Water will move from the right side to the left side Which of the following is the most stable form phospholipids can exist in naturally? correct answers Liposome The portion of an amino acid that differentiates one amino acid from another is the _____. correct answers R-Group The primary structure of proteins is the sequence of amino acids that are connected to one another by ______ bonds. correct answers -Covalent Bond -Peptide Bond Examples of proteins include: correct answers -Receptors -Enzymes -Hormones -Transmembrane Channels Cleaving one phosphate group off of which of the following molecules will provide the most energy? correct answers ATP (adenosine triphosphate) Glycolysis correct answers Breakdown of a 6-carbon glucose to a two 3-carbon pyruvate molecules Citric Acid Cycle correct answers Uses acetyl CoA to make GTP and release high energy electrons