General Knowledge
What is the body's largest organ?
The skin.
What organelle is the powerhouse of the cell?
Mitochondrion (plural is mitochondria!)
What is the atomic number for oxygen?
What is the SI unit of measurement for time?
The SI unit of measurement for time is second (s)
What is the full name of the HL Chemistry teacher at ISKL?
Shane Graham
What is the smallest country in the world?
Vatican City
What is the function of red blood cells in the human body?
The main function is the carry oxygen from the lungs and deliver it throughout our body. They also transport waste, such as carbon dioxide back to our lungs to be exhaled. They carry oxygen due to a protein called hemoglobin.
What is the PH value of a netural solution?
7.
What force keeps objects in motion?
Inertia is the force that keeps object in motion.
What is the largest species of penguin?
Emperor penguin.
When did the "Sack of Baghdad" occur?
In 1258, the siege, laid by Ilkhanate Mongol forces and allied troops, involved the investment, capture, and sack of Baghdad, which was the capital of the Abbasid Caliphate at that time.
Cohesion is the attraction between molecules of the same substance, while adhesion is the attraction between molecules of different substances.
What is the name of the process by which a radioactive nucleus spontaneously breaks down and emits radiation?
Radioactive decay.
What is the name of the fundamental force responsible for holding the nucleus of an atom together?
Strong nuclear force
Balance this equation:
Al2 + O3 -> Al + O2
Which planet in our solar system has the most moons?
Jupiter.
What are the four stages of cellular respiration?
1. Glycolysis
2. Link reaction
3. Krebs cycle
4. Oxidative phosphorylation
What is the term for a chemical reaction in which two compounds exchange ions to form two new compounds?
Double displacement reaction.
What is the name of the theoretical framework that attempts to reconcile general relativity and quantum mechanics?
String theory is the framework in which point-like particles of particle physics are replaced by one-dimensional objects called strings.
Which planet in our solar system has the most moons?
Jupiter
3.141592653
Give 3 differences between a globular and fibrous protein in shape, form, or function.
GLOBULAR:
2. rounded/spherical
2. Funcitonal (catalytic, transport)
3. Generally soluble in water
4. Irregular amino acid sequence
5. more sensitive to changes in heat/pH, etc.
Ex: catalase, aemoglobin, insulin, immunoglobulin
FIBROUS:
1. long and narrow
2. structural (strength and support)
3. generally insoluble in water
4. repetitive amino acid sequence
5. less sensitive to changes in heat and pH
EX: collagen, myosin, fibrin, actin, keratin, elastin
Name 3 polyatomic ions with their formulas, charges, and formal names.
Some posssible answers could include:
Phosphate: PO4 3+
Carbonate: CO3 2-
Ammonium: NH4 +
Nitrate ion: NO3 -
Hydroxide ion: OH -
Sulfate ion: SO4 2-
What is the speed of light in a vacuum?
Approximately 299,792,458 metres per second.
What are the 5 stages of the water cycle/hydrological cycle?
1. Condensation
2. Precipitation
3. Infaltration
4. Runoff
5. Evapotranspiration