1. B2 Topic 1 The Components of Life
This topic looks at:
DNA in detail and how cells divide
Genetic Issues
Enzymes and conditions affecting them
Draw, label and describe the function of the following cells:
Animal Cell
Plant Cell
Bacteria Cell
Organisms have adapted to live in extreme environments, what are two examples of these? 1. 2.
What uses are there for genetic engineering?
Keywords: Gene, chromosomes, undifferentiated plasmid, base pairs,
Use diagrams to show the stages in genetic engineering
STEM CELLS
What are stem cells, how can they be used and where do we find them?
What is the human genome project?
What are the 4 bases in DNA and how do they pair up?
Keywords: hydrogen bonds,

2. B2 Topic 1 The Components of Life
This topic looks at:
DNA in detail and how cells divide
Genetic Issues
Enzymes and conditions affecting them
CELL DIVISION There are 2 types of cell division. Draw the stages in each one and state where they occur in the body
MITOSIS
MEIOSIS
CLONING Use diagrams with explanations to show how cloning occurs.
Keywords: enculeated, daughter cell, parent cell, biological
What are enzymes?
What is a catalyst?
Where are enzymes found?
What 3 things affect how an enzyme works?
Sketch a graph to show how the 3 factors mentioned earlier affect how an enzyme works.
Keywords: genetically identical, body cells, haploid, diploid

3. B2 Topic 1 The Components of Life
This topic looks at:
DNA in detail and how cells divide
Genetic Issues
Enzymes and conditions affecting them
Protein Synthesis
Describe what transcription and translation are use diagrams to aid you. Use the following key words
Which base pairs match up in DNA?
Protein Synthesis
From the single strand of DNA, follow the steps to work out the sequence of amino acids… DON’T FORGET THAT mRNA HAS A ‘U’ INSTEAD OF ‘T’.
1. DNA= A A T G G C T T G A C T C T A
mRNA = ____________________________
tRNA triplets: ______ ______ ______ ______ ______
Order of _____ ______ ______ ______ ______
amino
acids:
2. DNA= T G G C T A G T A A A G C T T
Keywords: Gene, chromosomes, undifferentiated plasmid, base pairs,
How many base pairs make up an amino acid?
How many amino acids are there?
Keywords: hydrogen bonds,