Molecules of Life: worksheet PDF

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Helps with understanding and practicing the molecules of life....

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Lone Star College – Montgomery Biology 1408 Dr. Nishi Mathew

Molecules of Life – You Need to Know ME to be able to be Healthy and Nourish your Body!! 1. Determine which category of macromolecule (protein, fat, carbohydrate or nucleic acid) the following molecules fall into: Example of Molecule

Category

a. Cholesterol

_______________________________

b. RNA

_______________________________

c. Collagen

_______________________________

d. Hemoglobin

_______________________________

e. A gene

_______________________________

f.

_______________________________

Triglycerides (oils)

g. Enzyme

_______________________________

h. Cellulose (fiber)

_______________________________

2. Examples of monosaccharides includes ______________________________, ______________________________ & ________________________________ 3. Cells usually use __________________________ as a primary food source to make ATP. 4. Examples of disaccharides include _____________________, ____________________________ & ___________________________ 5. Sucrose is found in our diet in ____________________________________ 6. Starch is a ________________________ 7. Cellulose is a _____________________________ made by plants. It is makes up the _________________________ in our diets and cannot be _______________________________ by our intestines.

8. Molecules such as triglycerides store a lot of energy because they have many _______________ bonds 9. The building blocks (monomers) of proteins _____________________________ 10. Molecules that would combine to form a nucleotide include ___________________, __________________________, & ____________________________ 11. Monomer of proteins ______________________________________ 12. The two kinds of nucleic acids__________________________________ & ______________________________ 13. Building blocks of nucleic acids _____________________________________ 14. Cytosine always pairs with _______________________________ 15. The nucleotide sequence of one strand of DNA is GATTCTAG. What does the complimentary strand look like?

16. Which molecules provide the most energy per gram when eaten?

17. What are the main functions of proteins in our bodies?

18. What are enzymes and what is their role in cells? 19. What structures and substances in the human body are made of lipids? 20. Where is DNA present in eukaryotic cells? 21. What are the uses of carbohydrates for humans?...