3
Mitosis and Meiosis
Cells
Create a mind map with information about DNA
Mitosis
Meiosis
What is the corresponding row of DNA that matches with this:
A A T G G C T T G A C T C T A
Discovery
If it was being changed to mRNA what would the code be?
Structure
What scientists
How?
four bases
pairing
Where is it found
1) Normal diploid cell
2) chromosomes replicate
3) chromosomes lines up
4) Half goes to each side
5) cell divides to form
two diploid cells
DNA
1) Normal diploid cell
2) chromosomes replicate
3) chromosomes lines up
in pairs
4) one of each pair to each side
5) cell divides to form
two diploid cells
6) chromosomes line up and division happens again
7) 4 haploid cells
Genetic engineering
Draw the three cells and label them as animal, plant or bacteria
How to extract it
Human Genome Project
Steps
Things to add
How? Why?
Ethics
Label as many parts of each cell as you can
DNA replication
Match the words to their 2 definitions
Protein
Catalyst
break
shape
reactions
Write the definitions on your paper
Model with coloured cubes
Substances move down their concentration gradient
Diffusion
Requires energy
Active x2
key
broken
lock
products
Making proteins
Diffusion of water molecules
Enzymes are __________ that speed up chemical __________ inside cells. They are __________ and they have a specific __________ which is very important for how they work. Enzymes can either __________ down or join molecules together.
The __________ and __________ theory describes how enzymes work. An enzyme has an __________ site which is a specific shape. The chemical which is being vroken apart must have a complementary shape to fit onto the __________ site. Once in place, the weak bonds holding the substrate together are __________ and the __________ are released.
As temperatures increase, the reaction rate __________ because there is more energy. The __________ temperature for the enzymes is usually about __________. If the temperature increases above this, enzymes become __________. This is because the higher temperatures cause the active site to change __________, meaning substrates cannot bind to it. The __________ temperature is therefore a balance between increasing the rate of __________ and temperatures that cause enzymes to become __________.
Active transport
No energy needed
Substances move against their concentration gradient
Osmosis
37
increases
optimal x2
denature
reaction
deatured
shape
No energy needed
Give an example of where you might find each one occurring
Respiration
The digestive system
Photosynthesis
What is the equation for aerobic and anaerobic respiration?
Draw a cartoon or write a story to explain the journey food takes as it travels through the body
Draw a diagram to show how oxygen travels from the lungs into the blood and how carbon dioxide travels from the blood into the lungs.
Where does this happen?
What is the equation?
how is a leaf adapted for photosynthesis?
Why does heart rate and breathing rate increase after exercise?
Xylem and Phloem
The heart and circulatory system