art 1 Table 1 contains data from two bacterial growth curves. You will plot the data from each bacteria, using virtual graph paper. To do so, go to the following link: mvi- au. vlabs. ac. in/micro-biology-1/Bacterial_Growth _Curve/experiment. html A virtual graph sheet will come up on your screen. You will produce two graphs (one for each set of bacterial data) (5 marks for each graph). Graph each data point by placing your mouse at the point on the graph where the data point should go, and then click on the mouse button. Graph the rest of the data. Once you have finished the graph, take a screen shot of the graph and insert it into the powerpoint (one graph per slide). Follow the same step for the second graph. You need to label each graph as Graph One and Graph Two. Use the graphs to answer the following questions. Put your answers on additional slides of the powerpoint document. 1. label the growth phases of each graph (4 marks) Table 2. Bacterial growth data. Page 6 of 9 FOOD*2420 2. Which has the greater lag phase? Why? (2 marks) 3. Which bacteria has the greater death phase? Why? (2 marks) 4. Calculate the generation time for each bacteria. Be sure to show your work. (8 mark

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Part a - prefixes, roots, and suffixes match these prefixes, suffixes and roots to their meanings. phospho- angio- -uria -tropic -phag- a. the word root means blood or lymph vessels. b. the word root means urine. c. the word root means feeding or eating. d. the word root means phosphate or phosphorus. e. the word root means attracted specifically to the specified organ or tissue. part b – match these vocabulary terms to their meanings. gonadotropic polyuria angiotensin ii polyphagia phosphodiesterase upon the release of renin, is produced and stimulates vasoconstriction and the release of aldosterone. fsh and lh are examples of hormones, which target the ovaries or testes. an enzyme that degrades second messengers like camp or cgmp is . overproduction of urine, or , is a sign of diabetes mellitus. overeating, or , is a sign associated with diabetes mellitus.

Match the descriptions / definitions with the term they best describe 1. three dimensional relationship of the different polypeptide chains in a multisubunit protein or protein complex 2. common folding pattern in proteins in which a linear sequence of amino acids folds into a right-handed coil stabilized by internal hydrogen-bonding between polypeptide backbone atoms. 3. the amino acid sequence of a protein 4. a region on the surface of a protein that can interact with another molecule through noncovalent bonding. 5. three-dimensional arrangement of alpha-helices and beta-sheets within a single polypeptide, typically stabilized by a variety of noncovalent bonds, including ionic and hydrogen bonds, and nonpolar interactions / hydrophobic force. 6. the chain of repeating carbon and nitrogen atoms, linked by peptide bonds, in a protein. 7. common structural motif in proteins in which different sections of the polypeptide chain run alongside each other and are joined together by hydrogen bonding between atoms of the polypeptide backbone. 8. portion of a polypeptide chain that has a discrete tertiary structure of its own and can often fold independently of the rest of the chain 9. regular local folding patterns in a protein, including alpha-helix and beta-sheet a. primary structure b. beta-sheet c. protein d. coiled-coil e. polypeptide backbone f. secondary structure g. side chain h. tertiary structure i. binding site j. alpha-helix k. quaternary structure l. protein domain