Your 50 question Final Exam will be drawn from the following facts.1. It is NOT possible to determine whether the data collected in an experiment are different between the control and experimental groups unless the scientist employs the use of the mathematical tools of statistics.2. The endocrine regulation of blood glucose concentration is an example of an antagonistic effector and negative feedback loop.3. Intrinsic homeostatic regulatory mechanisms are "built-in" to the organs being regulated.4. Insulin is secreted from structures called pancreatic islets.5. In positive feedback mechanisms, the action of an effector is increased.6. Intercalated discs couple myocardial cells both mechanically and electrically.7. Osteocytes, living bone cells, are found within lacunae.8. Tendons are composed of dense regular fibrous connective tissue.9. The connective tissue blood is characterized by a liquid extracellular matrix.10. Adipose tissue is found primarily within the hypodermal layer of the skin.11. The zygote (fertilized egg) has the ability to produce all the various types ofcells found in the body. This ability is known as pluripotent.12. The valence electrons are the outer most electrons of an atom.13. Hydration spheres can be formed by compounds which contain polar covalent and ionic bonds.14. Hydrophobic molecules would contain nonpolar covalent bonds.15. Surface tension between water molecules occurs because adjacent water molecules form hydrogen bonds with each other.16. Ketone bodies are liver synthesized derivatives of free fatty acids that can be used as an immediate source of energy by many organs.17. Peptide bonds are formed by the process of dehydration synthesis.18. The secondary structure of proteins are alpha helix coils and beta-pleated sheet folds of a protein strand.19. 20 different amino acids in human tissues are known.20. Both weak chemical bonds between widely spaced amino acids and disulfide bonds between sulfur groups on cysteines holds a protein in its tertiarystructure.21. Proteins located on the surface of the plasma membrane act as receptors for hormones.
22. The plasma membrane is referred to as a mosaic because of the presence of proteins, glycoproteins, and lipoproteins.23. The flexibility of a cell's membrane is determined by the ratio of cholesterolto phospholipids.24. Energy production is not a function of membrane proteins.25. Phospholipids are arranged in a double layer with hydrophobic tails facing inward toward each other to form the plasma membrane.26. Intake of a specific molecule from the extracellular compartment by a cell occurs through receptor-mediated endocytosis.27. Release of neurotransmitters occurs via exocytosis.28. Folds of the plasma membrane that increase surface area are called microvilli.