Question | Answer |
Name 3 neurones involved in the reflex action | Sensory neurone relay neurone motor neurones |
How is sound made? | By vibrating objects |
What is the human hearing range? | 20-20000 Hz |
Hormones are secreted by .... | Glands |
Hormones are transported to their target organs by the ....... | Bloodstream |
High blood glucose levels are a symptom of what disorder? | Diabetes |
What monitors and controls blood glucose levels? | Pancreas |
What is the storage molecule of glucose? | Glycogen |
Is glycogen soluble or insoluble? | Insoluble |
Is glucose soluble or insoluble? | Soluble |
When your body temperature rises you can loose heat when...... | More blood flows to the capillaries in the skin |
How do you generate electricity? | Fossil fuel burnt produces heat water turns turbine which drives a generator |
An environmental problem that is linked with us using fossil fuels for electricity generation | Acid rain / global warming |
Name the 4 non renewable energy sources for the generation of electricity | Coal - oil - Natural gas - nuclear |
Name an energy source that is not a fuel | Solar - hydroelectric - geothermal - wind - wave - tidal |
Which part of a cell contains genes? | Nucleus |
What is the name of the part that surrounds a cell? | Cell membrane |
What is the opposite to dominant? | Recessive |
Suggest one environmental reason why the efficiency of an appliance should be high as possible | More efficient so less energy/ electricity needed so less fuel burned so less CO2 produced |
Suggest two safety precautions that a hospital chemist should take when working with stomach acids | Safety goggles and gloves |