IVY TECH APHY 101 Exam 1 (1-4) Solved 100% Correct

Three metabolic pathways are involved in the breakdown of glucose to CO2, H2O, and ATP. Of the three, which one occurs in the cytoplasm? - ANSWER-true Which of the nitrogenous bases is part of DNA, but not RNA? - ANSWER-thymine Which phase of mitotic cell division is represented by this picture? - ANSWER-prophase A DNA strand with a base sequence of ACTTCGCATG, when replicated, would yield a newly formed strand of the same base sequence. - ANSWER-false Which of the following would NOT be an example of an enzyme? - ANSWER-A molecule that helps to form the cytoskeleton of a cell lipids - ANSWER-all of the answer choices are correct A water solution that contains equal numbers of hydrogen ions and hydroxide ions is - ANSWER-neutral Glycogen is stored in the liver and __________. - ANSWER-skeletal muscle The origin of the term "anatomy" is related to - ANSWER-the Greek word for "cutting up." DNA - ANSWER-stores genetic information, including instructions for enzymes that synthesize fats and carbohydrates. A cell may contain hundreds of different types of enzymes. - ANSWER-true The atomic weight of an element whose atoms contain 8 protons, 8 electrons, and 8 neutrons is - ANSWER-16 Baking Soda (8.3), Battery Acid (1.0), Beer (4.2), Bleach (12.8), Butter (6.1-6.4), Coffee (5.0), Egg Whites (7.6-8.0), Grapes (3.5-4.5), Milk of Magnesia (10.6), Tomato (4.0-4.5), Vinegar (2.2), White Bread (5.0-6.0) - ANSWER-Vinegar, grapes, tomatoes, and coffee The framework of a cell membrane is a lipid bilayer. - ANSWER-true Endoplasmic reticulum is best described as a - ANSWER-network of interconnected membranes. Which organelle contains the nucleolus? - ANSWER-The nucleus The type of organic molecule that can replicate is a - ANSWER-nucleic acid A patient's blood test shows that their blood pH is 7.29. They are most likely experiencing - ANSWER-acidosis An electrolyte ionizes in water. - ANSWER-true The molecule shown is a(n) __________ molecule. It is a type of __________. - ANSWER-triglyceride; lipid Which of the following would be considered an element? - ANSWER-oxygen When placed into water, the ionic compound NaCl will - ANSWER-dissociate into Na+ and Cl- ions. The parietal pleura is a visceral membrane. - ANSWER-false Loss of cell cycle control can cause cancer. - ANSWER-true The basic steps of an enzyme-catalyzed reaction are - ANSWER-substrate and enzyme combine, forming an E-S complex. The reaction occurs, products are released, and the unchanged enzyme is released and recycled. What is a cofactor? - ANSWER-Nonprotein molecule that must combine with some enzymes in order for them to become active The upper midportion of the abdomen is called the __________region. - ANSWER-epigastric The body is made up of many different cell types, from small circular red blood cells to the elongated smooth muscle cells 20X its size. Why is there such variation in size and shape? - ANSWER-Different variations in size and shape allow differentiated cell types to perform unique functions. Absorption is the ability to exhale carbon dioxide. - ANSWER-false In all organisms, the basic unit of structure and function is - ANSWER-the cell Cells with specialized characteristics are termed __________. - ANSWER-differentiated A cell is the basic unit of structure and function of an organism. - ANSWER-true An important mechanism that controls metabolic pathways under physiological conditions is - ANSWER-negative feedback.