YAY! TO COMPLETE THIS EXERCISE YOU WILL NEED : 1.To print off and write your answers on the...
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INTRODUCING….BIOCHEMISTRY YAY! TO COMPLETE THIS EXERCISE YOU WILL NEED : 1.To print off and write your answers on the accompanying activity sheet 2.Have an internet connection to use the links - view the PowerPoint in presentation mode! 3.Hand in the completed activity sheet when you come to enrol… good luck!
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Transcript of YAY! TO COMPLETE THIS EXERCISE YOU WILL NEED : 1.To print off and write your answers on the...
INTRODUCING….BIOCHEMISTRY
YAY!
TO COMPLETE THIS EXERCISE YOU WILL NEED :1. To print off and write your answers on the accompanying activity sheet2. Have an internet connection to use the links - view the PowerPoint in presentation mode!3. Hand in the completed activity sheet when you come to enrol… good luck!
TASK 1: GETTING STARTED…• Let’s pop back into the wild and woolly past of
GCSE, to see what you can remember…
1. Which three main food types do these pictures represent?
2. What is each food type useful for?
• Now… stretch a bit further and see if you can remember anything about FOOD TESTS?
• NAME the chemical test I would carry out if I wanted to see whether a food contained:
3. Protein
4. Fat
5. Starch (carbohydrate)
6. Glucose (carbohydrate)
• Need some help? Click on the test tubes to find a link to GCSE S-Cool that is very handy!
TASK 2: BIOCHEMICAL TEST BASICS
TEST FOR… CHEMICAL USED
COLOUR AT START
NEGATIVE RESULT
POSITIVE RESULT
PROTEIN STAYS BLUE
CARBOHYDRATE – GLUCOSE
STAYS BLUE
CARBOHYDRATE – STARCH
TURNS BLUE/BLACK
FATS/LIPIDS CLEAR LIQUID CLOUDY WHITE EMULSION
PS… did you watch the Potato and Steak video yet?
7. Complete the table to show the colour changes…
CLOSE UP OF CARBOHYDRATES…
TASK 3: OK… LET’S STEP IT UP A NOTCH• Click on the potato to find a link to AS-Level
S-Cool that is very handy
• Use it to help you answer the following questions…
8. What elements do CARBoHYDrates contain? (psst, there are three of them!)
9. A monosaccharide is the most basic unit of a carbohydrate, name two HEXOSE monosaccharides
10. If you keep adding monomers together what molecule will you eventually get? Here’s a clue…
11. What is the name of the reaction that joins two monosaccharides together to make a disaccharide? (psst again… think of windows on cold days!)
12. What molecule is formed during the reaction?
13. What is the name of the bond that is formed during the reaction?
TIME TO STRETCH…• AS Biology exams have questions like ‘relate
the structure to the function’, so let’s see if you can…
14. Starch is a storage molecule which two features make it good for storage?
A- - -STARCH GRAINS
PRIVATE LIFEOF PROTEINS…
TASK 4: KEEP UP THE GOOD WORK…NEARLY DONE!
NO MESSING NOW, STRAIGHT ON TO IT…
15. List three functions of proteins
16. The monomer for a protein is an amino acid, about how many different amino acids are there?
17. What reaction joins two of these amino acids together?
18. What is the opposite reaction called?
19. What kind of bond is formed?
TIME TO STRETCH…
20. Give an example of a prosthetic group?
21. Draw out the reaction between to amino acids
• Need help? Click on the steak…- PA -
LOOKING INTO LIPIDS
TASK 5: LAST LITTLE LIPID LEARNING…
• Need help? Click on the donut…
» Mmm yummy!
22. What three elements are lipids made from?
23. What state are fats and oils in at room temperature?
24. Describe three functions of lipids
25. What makes up a TRIGLYCERIDE?
26. Why do PHOSPHOLIPIDS form a BILAYER?
TIME TO STRETCH…
27. Draw out the reaction between to three fatty acids and a glycerol molecule
28. What type of bond is formed (Psst… think of a woman’s name!)
THAT’S ALL… FULLY FLEDGED BIOCHEMISTS!
(now you get to wearthe cool outfit!!!)
