Introduction to the lesson
In the last chapter we learned the basic structure of a cell. We learned that ribosomes synthesize proteins, that mitochondria and smooth ER are involved in the synthesis of lipids and that sugars are added to proteins to form glycoproteins in the Golgi apparatus. In this chapter we will explore proteins, lipids, carbohydrates and other biological molecules in further detail. This lesson is a basic overview to ground you so that you know what you are working toward as you go through the chapter.
Preparing for the chapter
- What do you think is meant by the term “biological molecules”?
- Why do you think scientists looking for life on other planets, always look for signs of water first?
- What characteristics of water do you think are important for sustaining life?
- What is a carbohydrate? What role do carbohydrates play in the human body?
- What is a protein? What role do proteins play in the human body?
- What is lipid? What role do lipids play in the human body?
- What are the different tests that will show the presence of these molecules in food?
First reading the chapter:
Skim read through the chapter quickly (as explained in chapter one).
Second reading of the chapter
Now read the chapter (p.27-52). It is not necessary to take notes as you will work through each section in detail in the following lessons.
Closing
As you end this lesson, ask yourself
- What new things have I learned today?
- What did I already know?
- What still confuses me?
NOTE: This chapter cover section 2 of the Cambridge International AS Biology (9700) syllabus 2016-2018 (p.19-20).