Mid- Term Review 2007-2008 1. What is an organic compound? One that contains Carbon and or Hydrogen. 2. Name two activities that would describe the process of transport. Walking, distributing nutrients by means of the circulatory system, moving O2 throughout the body. 3. Which process takes simple materials and chemically combines them to make complex materials? Synthesis 4. What will happen if an organism fails to maintain homeostasis? The organism may become ill, or die. 5. Proteins are sources of Amino acids 6. Undergoing an internal and external balance is known as Homeostasis 7. Organisms are able to survive because they carry out Metabolic activities 8. The cell organelle involved with the bonding of amino acids is Ribosome 9. Hemoglobin, insulin, maltase, and albumin are composed of chains of amino acids. These are examples of Proteins 10. Glycogen and glucose are included in a group of organic molecules called Carbohydrates 11. Enzymes are proteins that Affect the rate of chemical reactions. 12. All living things are composed of the elements Carbon, hydrogen, oxygen, and nitrogen. 13. The life process in which a green plant makes its own food is called Nutrition. 14. All organelles in a cell work together to perform Metabolic processes. 15. Animal cells do not contain Chloroplasts 16. The level of body organization from the simplest to the most complex is Organelles-->Cells-->Tissues->Organs--> Organ Systems-> Organism 17. Certain hormones can attach to the cell membrane because of specific Receptor sites 18. Mitochondria are found in cells that require Less energy 19. Any time we mention the word Protein we look for the following key words in our answer Amino acids, Ribosomes, Enzymes, words ending in “in” (trypsin, pepsin) 20. The following structure found in the cell is responsible for the movement of materials into and out of it. Cell membrane 21. A small organ that performs a special function inside the cell is called an organelle 22. The following chemical reaction is called_______________. Glucose+oxygen-->carbon dioxide+water+ATP Cellular Respiration 23. Which structures carry oxygenated blood? Arteries (carry blood away from the heart). 24. Cell receptors and antibodies are similar because They are highly specific in their actions. 25. How do guard cells of a leaf help to maintain homeostasis in a plant? Guard cells allow materials to pass into and out of the leaf, ex. Water and gases. 26. Pick two of the following life processes and define them and explain how they interact. Coordination, Excretion, Digestion, Circulation, Synthesis. 27. What best describes a change that takes place in the human body when the heart rate increases as a result of exercise? More oxygen is delivered to muscle cells.