IBDP CORE>TOPIC 3.3>DNA STRUCTURE
ASSESSMENT STATEMENT
3.3.1 Outline DNA nucleotide structure in terms of sugar (deoxyribose), base and phosphate.
3.3.2 State the names of the four bases in DNA.
3.3.3 Outline how DNA nucleotides are linked together by covalent bonds into a single strand.
3.3.4 Explain how a DNA double helix is formed using complementary base pairing and hydrogen bonds.
3.3.5 Draw and label a simple diagram of the molecular structure of DNA.
3.3.2 State the names of the four bases in DNA.
3.3.3 Outline how DNA nucleotides are linked together by covalent bonds into a single strand.
3.3.4 Explain how a DNA double helix is formed using complementary base pairing and hydrogen bonds.
3.3.5 Draw and label a simple diagram of the molecular structure of DNA.
"THE WATSON AND CRICK MODEL OF DNA."
GROUP ACTIVITY
This activity carries 10 marks.
You have to make a model of DNA
1. width of the model - 20 cms
2. Height- 2 feet
3. Colour coding for phosphate, sugar and nitrogenous bases (A,T,G,C)
4. Helical structure with minor and major groove.
RUBRICS-
PROPER STRUCTURE- 5 MARKS
CREATIVITY- 3 MARKS
PRESENTATION- 2 MARKS
The groups-
GROUP 1- Gopi, Ruchita, Shreeti, Jneil, Prachi.
GROUP 2- Niyati, Anokhi, Heet, Darshi, Vincy
GROUP 3- Jigar, Bhoomi, Kruti, Sanchit, Purva
GROUP 4- Darshan, Tanmai, Kamakshi, Meely, Swaraj
This activity carries 10 marks.
You have to make a model of DNA
1. width of the model - 20 cms
2. Height- 2 feet
3. Colour coding for phosphate, sugar and nitrogenous bases (A,T,G,C)
4. Helical structure with minor and major groove.
RUBRICS-
PROPER STRUCTURE- 5 MARKS
CREATIVITY- 3 MARKS
PRESENTATION- 2 MARKS
The groups-
GROUP 1- Gopi, Ruchita, Shreeti, Jneil, Prachi.
GROUP 2- Niyati, Anokhi, Heet, Darshi, Vincy
GROUP 3- Jigar, Bhoomi, Kruti, Sanchit, Purva
GROUP 4- Darshan, Tanmai, Kamakshi, Meely, Swaraj
Day 1 (TOPIC- 3.3.1 TO 3.3.5)
http://mrsduffbiology.wikispaces.com/file/view/DNA%20Notes.pdf_
Read the document (till page 6) and answer the following questions- (You will do this in the groups assigned. This time you have to write the answers in a foolscap paper)
1. Draw the structure of one nucleotide.
2. Draw a single chain of polynucleotide.
3. Show the bond formation between two nucleotides and name the bond formed.
4. Draw the structure of DNA with three pairs of nucleotides.
5. Draw a double helix structure of DNA.
Read the document (till page 6) and answer the following questions- (You will do this in the groups assigned. This time you have to write the answers in a foolscap paper)
1. Draw the structure of one nucleotide.
2. Draw a single chain of polynucleotide.
3. Show the bond formation between two nucleotides and name the bond formed.
4. Draw the structure of DNA with three pairs of nucleotides.
5. Draw a double helix structure of DNA.
Day 2
Kahoot for topic 3.2 again this time including lipids.
Work in groups for the model.
Work in groups for the model.
3.3.5 Draw and label a simple diagram of the molecular structure of DNA.
Two polymers shown,
labelled phosphate linked to labelled sugar by a single bond; labelled base linked to a labelled sugar by a single bond; correctly linked base, sugar and phosphate labelled as nucleotide; covalent bond(s) labelled between sugar and phosphate/between sugar and base; at least two nucleotides linked by a single sugar-phosphate bond; at least two nucleotides linked by base-base bonds; hydrogen bonds labelled between bases; A-T and/or G-C base pairing; phosphate and base shown linked to correct carbon atoms on sugar; sugar drawn as pentagon. |
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