BIO 115 Milestone 1_Bio115 Milestone 1 Questions and Answers Latest Version

What is true about the Krebs cycle? • Two pyruvate molecules enter each turn of the cycle. • A single turn of the cycle yields two ATP molecules. • During the Krebs cycle, carbon dioxide is released, which is exhaled when you breathe. • A two carbon molecule called NADH is produced in the preparatory steps of the Krebs cycle. 2 A carbohydrate with two sugar units would be a(n) __________. • Carbosaccharide • Oligosaccharide • Polysaccharide • Monosaccharide Which of the following is a component of cell membranes and includes a hydrophilic head, a glycerol backbone and two fatty acid tails? • Nucleic acids • Fatty acids • Phospholipids • Triglycerides 4 Where is cytosol found? • Inside the nucleus • In the cytoplasm • Surrounding the cell • Between the two layers of the plasma membrane