Nutrient Identification: What’s in our Food?

Nutrient Identification: What’s in our Food?

Today in class we learned about the organic compounds (called macromolecules) found in all living organisms. We discussed carbohydrates, fats, and proteins and their importance as nutrients in our food. The foods we eat consist of plant materials or substances derived from animals that are all combinations of these macromolecules.

For our activity, we used indicator solutions including iodine solution, Benedict’s solution, and Biuret solution to test for the presence of starch, sugar, and protein in a variety of snack foods. We also tested for fats using the brown paper test. We learned a lot about the molecules making up the foods we eat every day!

 

Identificando Nutrientes: ¿qué contiene nuestra comida?

En la clase de hoy, aprendimos sobre los compuestos orgánicos llamados macromoléculas, que se encuentran en todos los organismos vivos. Discutimos sobre el sobre el rol que tienen los carbohidratos, las grasas y las proteínas como nutrientes. Los alimentos que comemos provienen ya sea de plantas o de substancias derivadas de animales; y todos son básicamente una combinación de macromoléculas.

En la actividad, examinamos la presencia de azúcar, almidón y proteínas en diferentes tipos de “snacks”, usando diferentes soluciones “indicadoras”, como por ejemplo, una solución de yodo, y otras dos llamadas “Benedict” y “Biuret”. También examinamos si los snacks contenían grasa, usando la prueba del papel café. ¡Aprendimos mucho sobre las moléculas que componen los alimentos que comemos diariamente!

 

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Author

Lauren Koppel

Lauren earned a Bachelor’s degree with a double major of Biology and Psychology from Clark University, and a Master of Education from the Harvard Graduate School of Education. During her undergraduate years, she worked in a evolutionary neurobiology lab that studied the neural development of annelids (marine worms), with a focus on the sox family of genes. Lauren loves learning about how the world works (including everything from biology to chemistry to engineering), and is passionate about sharing that knowledge and enthusiasm with others. In the past, she has interned at the Museum of Science, where she educated learners of all ages through hands-on activities, games, and experiments. Other science education organizations with which Lauren has worked include The People’s Science, EurekaFest, and Eureka! of Girls Inc. of Worcester. Currently she lives in Boston, where devotes her free time to playing Quidditch, reading sci-fi novels, playing her ukulele, and enjoying all the culinary delights the city has to offer.

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