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Midterm Study Game 2014 The total magnification of an image on a microscope is found by multiplying the eyepiece by the_____________ • Objective • Which part of the microscope should you adjust on a microscope to allow more light to pass through? • Diaphragm • An organism that can make its own food is known as an • autotroph • The presence of which organelle would identify an organism as an autotroph? • choroplast • What is a major factor that determines whether a molecule can fit through the cell membrane or not? • size • In the NYS lab “Diffusion through the Membrane,” which molecule was too large and did not pass through? • starch • What is the final product of photosynthesis? • glucose • Which organism is an exception to the cell theory due to its noncellular structure? • virus • Fill in the blank • Cell_______organorgan system • Tissue • In the NYS lab “Diffusion through the Membrane,” which molecule moved into the cell from the water • Iodine • All body cells have the same DNA but a liver cell and muscle cell are very different. How is this? • Gene on/off • Why do some cells in the reproductive system respond only to certain hormones? • Specific receptors • What four element make up all proteins? • CHON • Saliva enzymes operate best at a pH that is close to neutral for the hydrolysis of carbs. What is the neutral pH? • seven • Some enzymes work best in a pH that is acidic. Which range is acidic? • 1 to 6.9 How can you tell that the purple molecule b. is the enzyme? • Unchanged. • Which of the four organic macromolecules have a 2 to 1 ratio of hydrogen to oxygen? • carbohydrate • Which element is found in all proteins but not carbohydrates or lipids? • nitrogen • What are the building blocks of all proteins • Amino acids • What is the bond that hold two amino acids together to make a protein? • Peptide bond • What elements make up a nucleic acid • CHONP • GCAT in a DNA molecule are known as • Nitrogenous bases • The small monomers that make up the DNA macromolecule are known as • nucleotides • The circle part of the DNA nucleotide is called. • phosphate Each one of these in the cell membrane are called • phospholipid • If the external environment of a living cell has a greater concentration of salt than the cytoplasm, then the cell will • Lose water • Which process goes from low to high concentration and need cellular energy • Active transport • After a cookie is digested, glucose enters the bloodstream from the intestines by this process • diffusion What is the this called • meniscus How many mL should be added to raise the volume to 41 mL • 6 mL Which part of the microscope should never be used in medium or high power • Coarse adjustment • Which term include all activities to keep an organism alive? • metabolism • In a changing external environment, an organism must be able to maintain a constant internal condition. This is known as • homeostasis • Which is a protein that can influence a chemical reaction by speeding it up or slowing it down • enzyme • to break down a large molecule into smaller molecules by adding water • Hydrolysis • Which organic macromolecule is made of a glycerol and three fatty acids • lipid • Since enzymes speed up chemical reactions they are called this • catalyst • What two scientist are credited with developing the DNA model, the double helix? • Watson/Crick • What is the sugar component of the DNA nucleotide called? • deoxyribose