Search over 10,000 free study notes

They are where photosynthesis takes place, providing food for the plant. Chloroplasts contain chlorophyll pigment, which makes it green, which harvests the light needed for photosynthesis.

There is a structure of positively charged metal ions arranged in a regular pattern. Between these metal ions lie a sea of delocalised electrons which have been delocalised from the metal atoms to form th...

At the minimum point the gradient is zero so dy/dx=0. To find dy/dx, first expand out the brackets so y=2x^2 - 12x + 10. Using differentiation dy/dx=4x - 12. At the minimum 4x-12=0 so 4x=12 therefore x=3....

There is variation naturally present between members of a species. These variations can prove advantagous, thus making an individual in a species better adapted for survival. For example, giraffes with a ...