Northern Mega Trials 2 (Cloned) Contest 1 High Difficulty Flashcards

Comprehensive vocabulary flashcards covering transition metals, biology anatomy, cellular osmoregulation, microscopy, fluid dynamics, and geometric riddles from the NSMQ Cloned Trials.

Permanganate ion ($MnO_4^-$)

A transition metal oxyanion that exhibits an intense purple color in aqueous solution due to charge transfer rather than d-d transitions.

Neodymium

A lanthanide or transition metal commonly doped into yttrium aluminum garnet (YAG) to produce high-power solid-state lasers.

Tungsten

A d-block transition metal that possesses both the highest melting point and the lowest vapor pressure at temperatures above $2000\,^{\circ}\text{C}$.

Monsanto catalyst

A rhodium-based organometallic catalyst complex used in the industrial carbonylation of methanol to produce acetic acid.

Pericardial cavity

The specific body cavity or subdivision of the mediastinum that houses the heart.

Pleural cavity

The specific body cavity that houses the lungs.

Vertebral cavity

The specific body cavity or spinal canal that houses the spinal cord.

Retroperitoneal space

The subdivision of the body cavity where the kidneys are situated.

Crenation

The process where a human erythrocyte shrinks dramatically due to exosmosis when placed in a highly concentrated $10\%$ NaCl solution.

Protoplast

The structure isolated when a turgid plant cell undergoes complete enzymatic digestion of its cell wall in an isotonic medium.

Hemolysis

The process where red blood cells, such as those of a marine teleost, swell and burst when transferred directly into pure distilled water.

Vestigial organ

An evolutionary term for a non-functional, simplified residual structure in one species that corresponds to a fully functional organ in a related ancestral lineage.

Ornithine cycle

The metabolic cycle (also known as the Urea cycle) operating inside hepatic mitochondria and cytoplasm that converts toxic ammonia into less toxic urea.

Plasmodesmata

Structural channels spanning the cell wall of plant cells that allow direct cytoplasmic transport and symplastic signaling between adjacent cells.

Transmission Electron Microscope (TEM)

A microscope that utilizes electromagnetic lenses and electron beams with a resolving power significantly higher than light microscopes due to the small de Broglie wavelength of accelerated electrons.

Dynamic Viscosity

A fluid property with the SI unit equivalent of $kg\,m^{-1}\,s^{-1}$, which generally increases with temperature in gases.

Poiseuille's Law

A principle of fluid dynamics stating that the volume flow rate of a viscous fluid through a cylindrical pipe is directly proportional to the fourth power of the radius ($r^4$).

Enzyme

A fundamental biological macromolecule with tertiary or quaternary structure that functions as a specific catalyst by lowering the Gibbs free energy of activation.

Antimony ($Sb$)

A heavy p-block metalloid that expands upon freezing and is used in lead alloys for car battery plates and in infrared detectors.

Regular Dodecahedron

A Platonic solid featuring $30$ distinct straight edges, $20$ vertices, and $12$ congruent faces that are perfect regular pentagons.

Aurora

An astrophysical and optical phenomenon caused by high-energy cosmic particles colliding with atmospheric gases in a planet's magnetosphere near the polar regions.

$$Ba_3(PO_4)_2$$

The formula of the salt formed from the complete neutralization reaction between barium hydroxide and orthophosphoric acid.

$$Cr_2(C_2O_4)_3$$

The formula of the salt formed from the complete neutralization reaction between Chromium(III) hydroxide and ethanedioic (oxalic) acid.

$$(NH_4)_3C_6H_5O_7$$

The formula of the salt formed from the complete neutralization reaction between Ammonium hydroxide and citric acid.

$$Ca_3(AsO_4)_2$$

The formula of the salt formed from the complete neutralization reaction between Calcium hydroxide and arsenic acid.