BIOLOGY 1201 UPDATED ACTUAL LATEST
QUESTIONS AND ANSWERS SURE A+
✔✔Quaternary structure - ✔✔results when a protein consists of multiple polypeptide
chains
✔✔Denaturation - ✔✔loss of normal shape of a protein due to heat or other factor
✔✔The importance of 3d structure - ✔✔
✔✔Buffer - ✔✔compound that prevents sharp, sudden changes in pH; minimize
changes in H+ & OH-
✔✔Acid - ✔✔A substance that increases the hydrogen ion concentration of a solution.
✔✔Base - ✔✔A substance that decreases the hydrogen ion concentration in a solution.
✔✔Molarity - ✔✔moles of solute/liters of solution
✔✔Avogadro's number - ✔✔6.02 x 10^23
✔✔Molecular Mass - ✔✔The sum of the masses of all the atoms in a molecule;
sometimes called molecular weight.
✔✔List the four properties of water. - ✔✔Cohesive behavior, ability to moderate temp.,
expanse upon freezing, and versatility as a solvent
✔✔Oxygen has a partial ____________ charge, while Hydrogen has a partial
_____________ charge. - ✔✔Negative, positive
, ✔✔Chaperones - ✔✔Help proteins fold
✔✔Ester bond - ✔✔Formed when a carboxyl group of fatty acid combine with a
hydroxyl group of glycerol
✔✔Cellulose - ✔✔A substance (made of sugars) that is common in the cell walls of
many organisms
✔✔Starches - ✔✔Complex carbohydrates that are composed of many sugars linked
together; found in plant cell walls
✔✔ Hypothesis - ✔✔a small statement that you can test
✔✔Theory - ✔✔broader in scope than a hypothesis and can lead to a new testable
hypothesis; supported by a large body of evidence in comparison to a hypothesis
✔✔Deductive - ✔✔Testing what you think is true; Design, Test, Conclusion
✔✔Inductive - ✔✔making observations and solution from that observation; All
observations have the same result.
✔✔Valence - ✔✔Outer shell of electrons; the number of unpaired electrons in the
valence shell of an atom is generally equal to its valence (the # of covalent bonds it can
form)
✔✔Atomic mass - ✔✔the atom's total mass, which can be approximated by the mass
number
✔✔Mass number - ✔✔the sum of protons and neutrons in the nucleus
✔✔Atomic number - ✔✔the number of protons in an element
✔✔Isotopes - ✔✔two atoms of an element that differ in the number of neutrons
✔✔Radioactive isotopes - ✔✔decay spontaneously, giving off particles and energy
✔✔Hydrogen bonds - ✔✔forms when a hydrogen atom covalently bonded to one
electronegative atom is also attracted to another electronegative atom
✔✔covalent bonds - ✔✔Strongest bonds in organisms are _______ ________ that form
a cell's molecules.
✔✔Weak chemical bonds - ✔✔(ionic and hydrogen bonds) confer shape of large
molecules and help molecules interact
QUESTIONS AND ANSWERS SURE A+
✔✔Quaternary structure - ✔✔results when a protein consists of multiple polypeptide
chains
✔✔Denaturation - ✔✔loss of normal shape of a protein due to heat or other factor
✔✔The importance of 3d structure - ✔✔
✔✔Buffer - ✔✔compound that prevents sharp, sudden changes in pH; minimize
changes in H+ & OH-
✔✔Acid - ✔✔A substance that increases the hydrogen ion concentration of a solution.
✔✔Base - ✔✔A substance that decreases the hydrogen ion concentration in a solution.
✔✔Molarity - ✔✔moles of solute/liters of solution
✔✔Avogadro's number - ✔✔6.02 x 10^23
✔✔Molecular Mass - ✔✔The sum of the masses of all the atoms in a molecule;
sometimes called molecular weight.
✔✔List the four properties of water. - ✔✔Cohesive behavior, ability to moderate temp.,
expanse upon freezing, and versatility as a solvent
✔✔Oxygen has a partial ____________ charge, while Hydrogen has a partial
_____________ charge. - ✔✔Negative, positive
, ✔✔Chaperones - ✔✔Help proteins fold
✔✔Ester bond - ✔✔Formed when a carboxyl group of fatty acid combine with a
hydroxyl group of glycerol
✔✔Cellulose - ✔✔A substance (made of sugars) that is common in the cell walls of
many organisms
✔✔Starches - ✔✔Complex carbohydrates that are composed of many sugars linked
together; found in plant cell walls
✔✔ Hypothesis - ✔✔a small statement that you can test
✔✔Theory - ✔✔broader in scope than a hypothesis and can lead to a new testable
hypothesis; supported by a large body of evidence in comparison to a hypothesis
✔✔Deductive - ✔✔Testing what you think is true; Design, Test, Conclusion
✔✔Inductive - ✔✔making observations and solution from that observation; All
observations have the same result.
✔✔Valence - ✔✔Outer shell of electrons; the number of unpaired electrons in the
valence shell of an atom is generally equal to its valence (the # of covalent bonds it can
form)
✔✔Atomic mass - ✔✔the atom's total mass, which can be approximated by the mass
number
✔✔Mass number - ✔✔the sum of protons and neutrons in the nucleus
✔✔Atomic number - ✔✔the number of protons in an element
✔✔Isotopes - ✔✔two atoms of an element that differ in the number of neutrons
✔✔Radioactive isotopes - ✔✔decay spontaneously, giving off particles and energy
✔✔Hydrogen bonds - ✔✔forms when a hydrogen atom covalently bonded to one
electronegative atom is also attracted to another electronegative atom
✔✔covalent bonds - ✔✔Strongest bonds in organisms are _______ ________ that form
a cell's molecules.
✔✔Weak chemical bonds - ✔✔(ionic and hydrogen bonds) confer shape of large
molecules and help molecules interact
