Welcome to the Cell Biology Unit of National 4 Biology. In this unit we start by thinking about the very small building block that make up all living things - cells. These simple building blocks make up every living thing from tiny bacteria, to enormous trees to complex thinking living things like ourselves. We will think about how cells make more of themselves, how a whole organism is coded for by our DNA and then finish with some of the important chemical reactions which are essential to life and how they are controlled.
What do you need to know?
- Why is cell division important to organisms?
- What happens in cell division?
- What is cancer?
- What are DNA, genes and chromosomes?
- What do genes code for?
- Why are we unique?
- How do we inherit characteristics from our parents?
- What is genetic engineering?
- What are some useful products of genetic engineering?
- To investigate other therapeutic examples such as stem cell technology or using cells to grow artificial organs.
- What are enzymes?
- Where are enzymes found?
- What kind of reactions do enzymes help take place?
- What biotechnology industries are enzymes used in?
- What are microorganism?
- What are the properties of microorganisms?
- How is yeast used in baking and brewing?
- How is bacteria used to make yoghurt, cheese and biofuels?
- What is photosynthesis?
- What are the requirements for photosynthesis?
- What happens if any of the requirements for photosynthesis are in short supply?
- How might be overcome limiting factors to photosynthesis?
- What is respiration?
- What are the word equations for respiration with and without oxygen in animals, plants and fungi.
- What type of respiration creates the most energy?
- To be able to name two factors that are needed for the process of respiration.
- To investigate an interesting but controversial biological procedure.