SCRIPT 2026 QUESTIONS AND SOLUTIONS
GRADED A+
◉RNA, protein. Answer: Central Dogma: DNA is transcribed into
_____ then translated into a _____
◉eukaryotic, prokaryotic. Answer: A _____ cell has membrane-
enclosed organelles while a _____ cell is simpler, usually smaller, and
does not contain any membrane bound organnelles
◉Matter. Answer: Anything that takes up space is _____
◉Element. Answer: An _____ is a substance that cannot be broken
down to other substances by chemical reactions
◉Carbon, Oxygen, Hydrogen, Nitrogen. Answer: The elements that
make up 96% of living matter
◉Isotopes. Answer: Two atoms of an element that differ in number
of neutrons
, ◉Valence electrons. Answer: Electrons in the outermost shell and
are responsible for the chemical behavior of the atom
◉104.5. Answer: Bond angle of water molecule
◉Cohesion, Adhesion. Answer: Hydrogen bonds hold water together
in a phenomenon called _____, which is responsible for the transport
of water against gravity in plants; _____ however is an attraction
between different substances, for example between water and plant
cell walls
◉Nonpolar, polar. Answer: In a _____ covalent bond, the atoms share
electrons equally, while in a _____ covalent bond, the atoms do not
share electrons equally
◉H2O. Answer: In any aqueous solution at 25°C the product of H+
(hydronium ions) and OH- (hydroxide ions) is constant and can be
written [H+][OH-]=_____
◉Hydrophilic, hydrophobic. Answer: A _____ substance has an
affinity for water while a _____ substance does not
◉Carbon Dioxide. Answer: All carbon enters the biosphere as _____
gas, which is converted to sugar and biological macromolecules