1. DO NOW
Take out the Macromolecules & Diet Worksheet.
Polymers (macromolecules) are made up of smaller, repeating units called __________.
Carbohydrates are made up of ______________________.
Which macromolecule provides long-term energy and makes up the cell membrane?
Are polymers different than macromolecules?
What are the functions of lipids?

2. Do Now & Review
Macromolecules Notes
Practice
Kwashikor Article (protein deficiency)
Today’s Agenda

3. Dewayne, Destinee, Danny, Destiny, Nautica, Zaria
Survivor Update

4. 50%
82%
Data…

5. Tests & Test Corrections
Due Monday September 28th
Criteria for Success:
Write the question the number
Put why you missed the question (I guessed, I don’t know does not count)
Put the correct answer
Give an explanation for the correct answer
You will earn half of your total points back (e.x. you missed 20 questions and follow the format you can earn up to ten points back)
Tests & Test Corrections

6. You have a quiz on Monday over all of the macromolecules their function, structure, and the tests to identify each
Graphic organizer
Notes
Need to know: structure, function, monomers, food examples
Updates

7. Unit: Guiding Questions
What molecules are found in all living organisms?
Why do we need to eat a balanced diet that contains a variety of foods?
How do doctors and scientists test blood and other fluids for proteins, carbohydrates, and lipids?
Unit: Guiding Questions

8. Chemistry in Biology: Tests for Macromolecules
Unit 3
Lesson 4

9. Objectives
SWBAT identify specific tests used to detect protein, carbohydrates, and lipids.
SWBAT interpret the results of a particular test in order to determine the macromolecule present.

10. Tests for Macromolecules
Scientists use various tests for the presence of proteins, carbohydrates, and lipids
These tests can be run on body fluids (blood, saliva, etc.) or chemical solutions
We will discuss 5 tests
1 for proteins
2 for carbohydrates
2 for lipids
Tests for Macromolecules

11. Foldable Directions Label the front of the flap with the macromolecule
Label the back of the flap with the name of the test
Write the result behind the flap
Foldable Directions

12. Tests: Proteins Macromolecule: Proteins Test: Biuret Test
Results: The solution turns purple if proteins are present

13. Tests: Carbohydrates Macromolecule: Carbohydrates (Glucose)
Test: Benedict’s Test
Results: The solution turns orange if glucose is present

14. Tests: Carbohydrates Macromolecule: Carbohydrates (Starch)
Test: Iodine Test
Results: The solutions turns dark blue/black if starches are present

15. Tests: Lipids Macromolecule: Lipids Test: Sudan Test
Results: Lipids are stained reddish- orange if they are present

16. Tests: Lipids Macromolecule: Lipids Test: Brown paper bag test
Results: Clear spots appear on the bag if lipids are present
Think greasy fries in a paper bag

17. Summary Proteins Carbohydrates (Glucose/Sugars) Carbohydrates (Starch)
Biuret Test
Carbohydrates (Glucose/Sugars)
Benedict’s Test
Carbohydrates (Starch)
Iodine Test
Lipids
Sudan Test
Brown paper bag test
Summary

18. Instructions: Crossword Puzzle
Let’s practice a few together
Don’t call out answers
Fill in your crossword as we work
Instructions: Crossword Puzzle

19. A solution turns this color during Benedict's test when glucose is present
Answer: Orange
1 Down

20. A solution turns this color during the Biuret test when proteins are present
Answer: Purple
2 Down

21. This is another test, in addition to the brown paper bag test, used to detect lipids
Answer: Sudan
3 Across

22. The Iodine test is used to detect this
Answer: Starch
4 Across

23. This test is used to detect proteins in a solution
Answer: Biuret
7 Down

24. Color after Benedict’s
Benedict’s test is performed on three different foods/drinks. Based on the table, which food contains glucose?
Answer: Lemonade
Food/Drink
Color after Benedict’s
Lemonade
Orange
Coffee
Light blue
Egg yolk
Blue
Question 1 (8 Across)

25. Food/Drink
Color after Biuret Test
Water
Light blue
Yogurt
Purple
Potatoes
Blue
Rice
The Biuret test is done on four different foods/drinks. Based on the results, which food/drink contained protein?
Answer: Yogurt
Question 2 (9 Across)

26. Benedict’s test is used to detect the presence of this
Answer: Glucose
10 Across

27. The brown paper bag test is used to detect this macromolecule
Answer: Lipids
13 Down

28. Finish the review clues and the crossword puzzle on your own
Then do the Review Questions on the back of the worksheet
Rules:
Work independently
Raise your hand if you have any questions
Next Steps