Practice Questions
1.Name the part of the eye that carries electrical impulses from the retina to the brain.
Optic nerve
2.Which part of the eye protects the eyeball and helps it maintain its shape?
Sclera
3.Explain how the cornea and lens work together to focus light on the retina.
Cornea bends / refracts light
Lens changes shape to focus light
Light is focused on the retina
Factors affecting the rate of photosynthesis
Measuring & calculating rates of photosynthesis
Inverse square law and photosynthesis
Economics of enhancing the conditions in greenhouses
Investigating the effect of light intensity on the rate of photosynthesis
Data analysis and nervous system
The effect of a factor on human reaction time
Controlling blood glucose concentration
Regulating water and nitrogen levels in the body.
Hormones and human reproduction
Using hormones to treat infertility
Control and coordination in plants using hormones
Investigating the effect of light or gravity on the growth of newly germinated seedlings