Practice Questions
1.State the typical core body temperature value for a human.
37°C
2. Name two ways the body loses heat when body temperature is too high.
Sweating
Vasodilation
3.A person is running on a hot day. Explain how sweating helps reduce body temperature.
Sweating occurs and sweat is released onto the surface of the skin. The sweat evaporates, and evaporation requires energy. This energy is taken from the skin, increasing energy transfer to the surroundings and causing body temperature to decrease.
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