*Turn in bellwork today *Turn in Brine Shrimp Lab Report *Quiz on Monday over sugars and starches Bell Work Friday 9/16 1.What did you learn from the sugar lab? 2.Which foods had both high starch and high sugar? 3.What do you think the body uses proteins for? 4.What is a food that is high in protein? Low in protein? 5.Are proteins only found in muscles? What do you call a teenager who plays professional sports? HAPPY FRIDAY

SEATS! 5th HOUR

SEATS! 6th HOUR

SEATS! 7th HOUR

Turn Stuff in 7 Bellworks including today Should have 7 stamps Lose points for unstamped bellwork

Turn stuff in: Brine Shrimp Lab 1.Cover page 2.Answers to Cover Page 3.Questions page 4.Data Table 5.Graph 6.Drawings of Brine Shrimp

Predict the Amount of Protein 0 = no protein + = a little protein ++ = medium protein +++ = lots of protein Predicted Protein Actual Protein Chicken Broth Apple Juice Milk Onion Juice Corn Potato Bean

Protein Test Put about 1cm of each food in a separate test tube Use the same order of foods as in the list Put on GOGGLES and leave on until you are done with clean up! Add 10 drops of Biuret’s Solution to each Mix each tube for 30 sec Record the color change (0 to +++)

Protein Lab Cleanup 1.Pour out test tubes in blue and red bin 2.Scrub and rinse test tubes 3.Put in test tube rack upside down to dry 4.Wipe off table and wipe out sink if needed General Cleanup Clean up has been good so far, but we can do better Your station should look exactly like it did when you found it Please keep the back sink clean If you see water on a counter, please just grab a paper towel and wipe it up, Mr. Horton will love you forever and ever. Lose points for messy lab stations

Protein Lab Questions 1.What color did the foods with protein turn? 2.Which of the foods in this experiment would you want to eat to build muscle? 3.Which food(s) had the least protein? *When you finish, turn in the starch lab, sugar lab, and protein lab stapled together with your: ***FIRST NAME, LAST NAME, PERIOD in the top right corner

Proteins –Made up of amino acid building blocks –1000’s of functions: muscle movement digestive enzymes antibodies – Body structures are made of proteins Hair, fingernails, muscles, enzymes

Each kind of protein has a special shape –At first, a long chain of amino acids Like pop-bead necklace

–Chain folds up into a unique 3-D shape –Function and shape go together

2 examples of “Shape & Function Match” –A) Hemoglobin Function –carry oxygen in blood Shape is like a “cage” –Oxygen fits perfectly inside cage

Muscle Protein –Function Contract & relax to cause movement –Shape long & thin with “teeth” like combs Teeth grip & ungrip like Velcro Slide to get longer & shorter

More Overlap = shorter muscle Less Overlap = longer muscle

Could hemoglobin do the job of muscle protein? Could muscle protein do the job of hemoglobin? WHY NOT?

Q & A: Proteins 1)What are the building blocks for proteins? 2)Proteins start out __________________ & end up ___________________________. 3)Name 2 functions of proteins. 4)Name 2 examples of structures made of proteins. 5)Explain how “Shape Matches Function” for hemoglobin. 6)Explain how “Shape Matches Function” for muscle proteins. 7)How can proteins have so many different functions in the body? Don’t write the question but answer in complete sentences IYOW.