Tutorial
iGCSE Biology: Biological Molecules
This deck covers the major biological molecules for iGCSE Biology, including their chemical composition, building blocks, standard food tests, and the structure of DNA.
Tutorial
iGCSE Biology: Biological Molecules
This deck covers the major biological molecules for iGCSE Biology, including their chemical composition, building blocks, standard food tests, and the structure of DNA.
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Deck Contents
37 CardsLesson#1
In this deck, we'll explore the large molecules that are essential for life. We'll focus on the three main groups of biological molecules found in food: carbohydrates, proteins, and fats.
Lesson#2
Let's start with what these molecules are made of. Carbohydrates, as well as fats and oils, are all built from the same three chemical elements: carbon, hydrogen, and oxygen.
Quiz#3
Carbohydrates contain the chemical element carbon. What other two chemical elements do they contain?
hydrogen and oxygen
Quiz#4
Fats and oils contain the chemical elements carbon and hydrogen. What is the third element they are made of?
oxygen
Lesson#5
Proteins are slightly different. Like carbohydrates and fats, they also contain carbon, hydrogen, and oxygen. However, proteins always contain one extra element: nitrogen.
Quiz#6
In addition to carbon, hydrogen, and oxygen, what other chemical element is always found in proteins?
nitrogen
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