Practice Questions
1.Which hormone causes an egg to mature in the ovary?
FSH (Follicle Stimulating Hormone)
2.Describe the role of oestrogen in the menstrual cycle.
Rebuilds and thickens the uterus lining after menstruation
Inhibits FSH to prevent multiple eggs maturing at the same time
Stimulates LH release, which triggers ovulation
3.Explain why high progesterone levels prevent pregnancy from occurring again immediately.
High progesterone maintains the uterus lining and inhibits FSH and LH, so no new egg matures or ovulation occurs, preventing another pregnancy.
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