BIO 1 EXAM 2025 | Complete Questions and Correct
Answers | Graded A+ | Verified Answers | Brand New
Version!
· What elements make up 96% of living matter? - (ANSWER)carbon, hydrogen,
oxygen, nitrogen
·What are trace elements, and what are some examples of trace elements? -
(ANSWER)less 0.01 percent of body mass (needed by living body) EX iron carring
o2 to the blood
· What information can things like the atomic mass, atomic number, and atomic
mass number tell about an atom? What determines each? - (ANSWER)
atomic mass - (ANSWER)Number of protons and neutrons (weighted average of
different isotopes
atomic number - (ANSWER)the number of protons in the nucleus of an atom
atomic mass number (dalton) - (ANSWER)the total number of protons and
neutrons in an atom's nucleus
Increasing/decreasing reactant concentration - (ANSWER)pushes the reaction
forward (toward product formation) because the system seeks to consume the
excess reactants / shifts the reaction backward (toward reactant formation) as
the system tries to replace the lost reactants.
, ·Increasing Product Concentration, Decreasing Product Concentration -
(ANSWER)- The reaction shifts backward to reduce excess product and form more
reactants.
- The reaction shifts forward to produce more of the lost product.
polar covalent bond - (ANSWER)A covalent bond in which electrons are not
shared equally
nonpolar covalent bond - (ANSWER)a covalent bond in which the electrons are
shared equally by the two atoms
ionic bond - (ANSWER)the complete transfer of valence electron(s) between
atoms (full opernship)
valance electrons and what does it determine? - (ANSWER)the number of
electrons in the outermost energy level - chemical behavior, reactiveness
What is the importance of the weaker interactions in terms of biological function
of molecules? - (ANSWER)easily reversible. EX hydrogen bonds, van der Waals
forces, and ionic interactions
molecular shape - (ANSWER)binding, recognition, and activity in biological
systems.
Answers | Graded A+ | Verified Answers | Brand New
Version!
· What elements make up 96% of living matter? - (ANSWER)carbon, hydrogen,
oxygen, nitrogen
·What are trace elements, and what are some examples of trace elements? -
(ANSWER)less 0.01 percent of body mass (needed by living body) EX iron carring
o2 to the blood
· What information can things like the atomic mass, atomic number, and atomic
mass number tell about an atom? What determines each? - (ANSWER)
atomic mass - (ANSWER)Number of protons and neutrons (weighted average of
different isotopes
atomic number - (ANSWER)the number of protons in the nucleus of an atom
atomic mass number (dalton) - (ANSWER)the total number of protons and
neutrons in an atom's nucleus
Increasing/decreasing reactant concentration - (ANSWER)pushes the reaction
forward (toward product formation) because the system seeks to consume the
excess reactants / shifts the reaction backward (toward reactant formation) as
the system tries to replace the lost reactants.
, ·Increasing Product Concentration, Decreasing Product Concentration -
(ANSWER)- The reaction shifts backward to reduce excess product and form more
reactants.
- The reaction shifts forward to produce more of the lost product.
polar covalent bond - (ANSWER)A covalent bond in which electrons are not
shared equally
nonpolar covalent bond - (ANSWER)a covalent bond in which the electrons are
shared equally by the two atoms
ionic bond - (ANSWER)the complete transfer of valence electron(s) between
atoms (full opernship)
valance electrons and what does it determine? - (ANSWER)the number of
electrons in the outermost energy level - chemical behavior, reactiveness
What is the importance of the weaker interactions in terms of biological function
of molecules? - (ANSWER)easily reversible. EX hydrogen bonds, van der Waals
forces, and ionic interactions
molecular shape - (ANSWER)binding, recognition, and activity in biological
systems.
