Form 4 Chapter 2 - Cell structure & cell organisation (part 3)

this is the last part of chapter 2.

1) This part covers the cell organisation in both humans & animals as well as in plants.
a) You should know how to explain each level of cell organisation. Eg: what is a tissue? why the erector muscle is a tissue while skin is an organ?
b) What is differentiation process? it is a process of cell development that enables the cell to perform a specialised function.
c) Why multicellular organisatin needs cell organisation while unicellular organisation doesn't?
d) What are the 4 different types of tissues in humans/animals? Epithelial tissue, connective tissue, muscle tissue, Nerve tissue.
e) Examples of organs & systems in humans.
f) The 3 main types of tissues in plants? Epidermal tissue, ground tissue, vascular tissue.
g) The function of xylem & phloem.
h) The structural difference btw root hair cell & palisade mesophyll cell.
i) organs & systems in plants.

2) We also look at the importance of regulating the internal environment (eg: the temperature, pH value, osmotic pressure, glucose level, etc) with examples.
a) what is homeostasis?
b) You can refer to the table at the last page of your notes to learn more about this & other examples. For instance, when your body temperature (BT) drops below normal BT, one of the response is shivering, why?
c) you will learn more about negative feedback under chapter 3, form 5.


3) We end the chapter by looking at how different organelles involve in the production of enzyme (which is a protein) in the human body. Read note 7 (b), page 8.

A useful video is attached to help you understand the whole process of enzyme/protein synthesis.