BMS 300 Exam 1 (With complete solution)

Phospholipids are correct answers Both Hydrophobic and Hydrophillic Triglycerides are composed of a long chain fatty acid and three glycerols correct answers False, it is composed of one glycerol and three fatty acids In triglycerides, a fatty acid is joined to glycerol by a ________ bond correct answers Covalent _______ is the diffusion of water molecules through a semipermeable membrane from a place of higher water concentration to a place of lower water concentration until the concentration on both sides is equal. correct answers Osmosis The portion of an amino acid that differentiates one amino acid from another is the correct answers R-Group Between a micelle and liposome, which one is stable and which one is unstable? correct answers A Micelle is not stable because the hydrophobic tails are pointing inward and are not attached by another layer of phospholipids, a Liposome is stable since it has two rows of phospholipids to create a phospholipid bilayer What is a monomer? correct answers Amino acids What is a polymer? correct answers Polypeptide bonds Primary structure correct answers linking of amino acids between peptide bonds Secondary structure correct answers alpha helices and beta pleated sheets, hydrogen bonding Teritiary structure correct answers Hydrophilic and hydrophobic r groups that give it a 3D shape and function Quantinary Structure correct answers entire protein, ties tertiary structures together Prokaryotes correct answers circular molecule of DNA and RNA, plasma membrane, make protein and lack membrane bound organelles Eukaryotes correct answers Nucleus, SER (lipid), RER (protein), ribosomes (make proteins), golgi apparatus (modify proteins), Mitochondria (ATP--ADP and Pi), lysosome and cytoskeleton Short Distance Transport correct answers F actin as the polymer, globular actin as the monomer, myosin as the motor protein (ATPase) Long Distance Transport correct answers Microtubules as the polymer, tubulin as the monomer, and kenesin and dynein as the motor proteins (ATPase)