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Introduction to the lesson
So far in out study of AS-Level biology we have concentrated on the cell - its structure, function and reproduction. In this chapter we begin a study of systems. You should recall from IG biology that s system can be defined as a group of organs which function together to perform a particular task in and for the body. Systems are made up of organs, which in turn are made up of tissues, which in turn are made up of cells. The first system that we will explore is the transport system in plants. Plants are able to produce their own food through the process of photosynthesis. Transport systems in plants therefore have to move to substances from where they are absorbed or produced to where they are stored or needed. Unlike animals, plants do not need to transport oxygen and carbon dioxide as these gasses diffuse through the air spaces within the stems, roots and leaves. The purpose of this lesson is to give you a basic overview of the material that we will be working though in the next few lessons.
Preparing for the chapter
- What do you think is meant by the term “transport in plants”?
- What is transported?
- How is it transported?
First reading of the chapter:
Skim through the chapter quickly (as explained in chapter one).
Second reading the chapter
Now read the chapter (p.126-152). 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 covers section 1 of the Cambridge International AS Biology (9700) syllabus 2016-2018 (p.25-26).