Name:
Block:
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Carbohydrates
Essential Question: What are carbohydrates?
Part I:
Look at each of the four carbohydrate structural examples below.
fructose
glucose
A) _____________________
B) ___________________
sucrose
C) _______________________
amylose
D) ______________________________________
1. Write a chemical formula on the line below each of the four carbohydrate
structural examples on page 1.
2. What do you notice about the elements in each of the formulas?
3. Why are these four examples called carbohydrates? State your reasoning.
(Hint: Think about your answer to question 2.)
4. After comparing the names of these carbohydrates, would you be able to identify
a carbohydrate by its name. Why or why not?
5. Which of the following are carbohydrates?
hemoglobin
maltose
keratin
lactose
estrogen
deoxyribonucleic acid
galactose
Explain your reasoning for your choice(s).
6. How would you break these four examples of carbohydrates into groups? Explain
your reasoning.
Carbohydrate POGIL
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Part II
There are two classes of carbohydrates, simple carbohydrates and complex
carbohydrates, depending on their chemical structure.
7. Look at the four carbohydrate examples in Part I. Which would you classify as
simple carbohydrates and which are complex carbohydrates. Be sure to explain
your reasoning.
Simple carbohydrates are called monosaccharides. Complex carbohydrates are composed
of two or more monosaccharides.
8. Look at the sucrose structure in Part 1 and then name the two monosaccharides
that compose sucrose.
9. Look at the amylose structure in Part 1 and then name the monosaccharide(s) that
compose amylose.
10. Distinguish between a disaccharide and a polysaccharide and give one example
for each.
11. Compare and contrast simple and complex carbohydrates by completing the Venn
diagram below. Be sure to clearly label your Venn diagram.
Carbohydrate POGIL
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The functions of carbohydrates include short-term and intermediate-term energy storage
(starch in plants and glycogen in animals), as well as structural component of cell walls
(cellulose) in plants.
12. Short-term energy storage involves simple or complex carbohydrates.
Explain your choice.
13. Intermediate-term energy storage involves simple or complex carbohydrates.
Explain your choice.
14. Structural component of cell walls, cellulose, involves simple or complex
carbohydrates. Explain your choice.
15. Make a concept map using the provided terms and images:
carbohydrates
complex carbohydrates
intermediate-term energy
Carbohydrate POGIL
simple carbohydrates
short-term energy
structural component
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