Biology Performance Assessment

1. Biology Performance Assessment First Semester Fall 2013 Worth a Test Grade- Summative Assessment

2. PA composed of: • 7 (stations) sections to include: • Biochemistry • Scientific Method • Energy Flow • Cell Transport • Cell Parts • Graphing • Enzymes

3. Station #2: Biochemistry • Know the four major classes of organic molecules by descriptions & their structures: • Proteins • enzymes • Carbohydrates • Nucleic Acids (DNA, RNA) • Lipids • Phospholipids

4. My Structure looks like this. Remember me by my NH2 group Biochemistry Guess Who? nails • I am found in R OH NH2 C C O H hair blood muscles

5. Enzymes • Type of protein • Speeds up chemical reactions • Can be used over and over again

6. Biochemistry Guess Who? • I contain the information that determines what you look like. (hair color, eye color) • You can find me in the nucleus of each one of your cells. My Structure looks like this. Remember me by my nitrogenous base.

7. Biochemistry Guess Who? • Examples include: • used for Insulation • Fat My Structure looks like this. Remember me because I look like a “E”

8. Phospholipid bilayer hydrophilic – “water-loving” heads hydrophobic – “water-fearing” tails

9. Biochemistry Guess Who? • Examples include: • - versus - starches Disaccharide Monosaccharide

10. Station 3: Scientific Method • Know how to do the following tasks when given a scientific method scenario: • Create hypothesis (if and then statement) • Identify the following: • The research question • Independent variable (IV)– scientist manipulated • Dependent variable (DV)- changes or depends on the IV • Control variable – remains constant • Type data collected –quantitative or qualitative • Formulate a conclusion

11. Station 5: Energy Flow • Know how to construct a food chain from a list of organisms • Identify the organisms that have the most & least energy available to them • Identify the producers (autotrophs) & consumers (heterotrophs, herbivores, carnivores, and/or omnivores) • Remember our Food Web Activity!!!!

12. Station Six: Cell Transport • Predict the direction of water movement across a cell membrane when cells are placed in hypotonic, hypertonic, & isotonic solutions.

13. Hypotonic – “Hippo” • Hypotonic – [water inside] < [water outside] • solutes are higher inside the cell • water flows in, cell swells

14. Hypertonic – “Hyper” • Hypertonic – [water inside] > [water outside] • solutes are higher outside the cell • water leaves cell, cell shrinks

15. Isotonic Solution • Isotonic – at equilibrium [water inside] = [water outside] concentration of wate inside = concentration of water outside

16. Station 7: Cell Parts • Match cellular parts to a diagram of a cell • Identify the cell part when given its function.

17. Enzymes • Enzymes are protein molecules that help to speed up biochemical reactions • Enzymes interact with substrates based on shape, size, specificity, • Ex: maltase will not work on a polypeptide. Why?

18. Label the reactants, products, activation energy, enzymatic reaction, non-enzymatic reaction for each curve

19. Station 9: Graphing • Know how to construct a line graph from a sample data table.

20. Plotting a Line Graph • If you follow these simple guidelines then making a graph is easy. First, draw the horizontal and vertical axes using your ruler. Vertical Axis Horizontal Axis

21. Next, number each axis in even intervals. Intervals are determined by looking at the smallest and largest numbers in the data table. Devise an even way to space them along the axis. Temp (0C) Time (minutes) Heating of Compound X

22. Heating of Compound X For time, the smallest number is 0 and the largest is 10. The numbers between are in even intervals of 1’s. Because the work is already done, label the horizontal right off the data table. Temp (0C) 1 2 3 4 5 6 7 8 9 10 Time (minutes)

23. To determine the labels for the vertical axis, we need to think a bit. The smallest number is 20, the largest number is 74. The rest of the numbers between are hardly what you would call even. Label the axis by 10’s and then plot the data points, we’ll get a good picture of the data. 110 100 90 80 70 60 50 40 30 20 10 0 Temp (0C) 1 2 3 4 5 6 7 8 9 10 Time (minutes)

24. Once the axis are drawn and labeled, it is time to plot the data points. Using the data table below, split up the ordered pairs. Find each half of the pair on the respective axis and follow the lines until they intersect. Heating of Compound X 110 100 90 80 70 60 50 40 30 20 10 0 Heating of Compound X • • • • Temp (0C) • • • • • • • 1 2 3 4 5 6 7 8 9 10 Time (minutes)

25. Once all of the data points are plotted, line up the data points with a ruler and draw the line of best fit. 110 100 90 80 70 60 50 40 30 20 10 0 Heating of Compound X Temp (0C) • • • • • • • • • • • 1 2 3 4 5 6 7 8 9 10 Time (minutes) Be sure give your graph a title and label your axes with title and units.

26. Works cited Polar bear picture: http://martalopez95.blogspot.com/2010/11/polar-bear.html Fat cartman: http://www.detentionslip.org/2009/05/teacher-goes-on-paid-leave-after-fat.html Sugar: http://www.balancingmotherhood.com/2009/02/06/go-ahead-snarf-that-5-pound-bag-of-sugar/ Starches: http://www.ifr.ac.uk/spm/Starch.htm Hippo http://zoopeeps.wordpress.com/2010/03/27/the-coveted-common-hippopotamus/ Popeye picture: http://myexercise4fitness.com/2008/01/popeye-spinach-and-building-bigger-arms/