Biology
Where does cellular respiration occur?
The Mitochondria.
What is the measurement system used to indicate the concentration of hydrogen ions?
What is the unit of work done?
Joule.
What is the hardest naturally occurring substance?
Diamond
Herts (Hz)
What is the ratio of C:H:O in carbohydrates?
6:12:6
These particles are located within the nucleus and have no charge. What is it?
Neutron
Light travels in a straight line at constant speed of 300,000 m/s. What is its acceleration?
0.
Approximately what percent of the earth is water?
71%
What is the process by which radiation is emitted?
Decay
A whale.
A substance which does not enter chemical reactions is described as: __________.
Inert
I make up most of the universe, but you can’t see me at all. What am I?
Dark Matter
The earth’s atmosphere has how many layers?
5.
What does MRI stand for?
Magnetic Resonance Imaging.
Why is haemophilia a disease that is more commonly seen in males?
The disease is X-Chromosome Linked.
What is the element with the lowest boiling point?
Helium
What is the mass of a proton? In KG
1.67x10^-27
The intensity of an earthquake is measured by which scale?
Richter Scale.
What term is used for a type of medical imaging that involves injecting patients with a radioactive tracer and capturing images of its distribution in the body?
PET Scan
Why does honey never spoil?
Honey has a low pH and low water quantity, hence it is a substance in which bacteria doesn’t thrive in. It also contains Hydrogen Peroxide which is antibacterial
If Sodium Chloride is added to an aqueous solution of Silver Chloride, what effect will this have on solubility of Silver Chloride and Explain
Give an example of a particle that has no mass.
gluon or photon or graviton
According to data, when is it estimated that the earth was formed?
4.5-4.6 billion years
What’s the term used for the process of converting a physical quantity into a measurable signal often used in medical imaging?
Transduction