BCHS 3304 Exam 1 Questions and CORRECT
Answers
Natural Laws
Conservation of mass and energy
laws of thermodynamics
laws of chemical kinetics
principles of chemical reactions
axioms
energy is converted to work
catalytic chemical transformations
assembly of molecules with great complexity from simple subunits
complex molecules combine to form supra molecular components and become a cell
store and pass instructions for the assembly of all future generations from nonliving beginnings
in the beginning
h2 began he, universe is 15-20 billion years old
stars exploded, making the high numbered atoms
biochemistry is studying life at the chemical level
oldest fossil is from stomatolite in western Australia 3.5 billion years old
common themes of life
single cell becomes multi cell, evolution increases diversity
organic compounds in organisms are products of biological activity--limestone and coral reefs
,biomolecules experience natural selection and have the same chemical properties that non-living
matter molecules do! so physics & chemistry define life.
6 issues
1. what are chemical and 3d structures of biomolecules?
2. how do these biomolecules interact together?
3. how does the cell make and use biomolecules?
4. how does energy conservation work and how is it used in the cell?
5. what systems exist to organize biomolecules and conduct functions using them?
6. how is genetic information stored, transmitted, and expressed?
prokaryotes
small asf (10um) and no membrane bound nucleus but nucleic matter just floats around in the
cytoplasm
biochemical breakdown
organism --> organ --> tissue --> cell --> organelle --> supramolecular assembly -->
macromolecule
life from the sea
h2o is thought to be the key to understanding macromolecule behaviors, and it's the solvent of
life and part of every transformation
lipid membranes and other insoluble compounds still have natures and functionality that's related
to water activity and interactions
living organisms are made of lifeless molecules, but collective behavior and interactions create
, properties that define life. no vital force or vitalism.
biochemistry has pushed science forward but it's primarily concerned with the wonder of life!
parts of the cell
nuclear membrane, nucleus, nucleolus
centrioles
golgi apparatus
chromatin
ribosomes
ER smooth/rough
lysosomes
cell membrane
mitochondrion
vacuole
specific biochemical adaptations
range of life, hot springs, subduction zones, artic tundra, antarctic dry fields, animal intestines,
college dormitories
living organisms
complicated structures and super organized
-intricate internal structures and lots of complicated molecules
-proteins, DNA, RNA, starches, lipids, etc
-inanimate objects are mixtures of simple compounds
Answers
Natural Laws
Conservation of mass and energy
laws of thermodynamics
laws of chemical kinetics
principles of chemical reactions
axioms
energy is converted to work
catalytic chemical transformations
assembly of molecules with great complexity from simple subunits
complex molecules combine to form supra molecular components and become a cell
store and pass instructions for the assembly of all future generations from nonliving beginnings
in the beginning
h2 began he, universe is 15-20 billion years old
stars exploded, making the high numbered atoms
biochemistry is studying life at the chemical level
oldest fossil is from stomatolite in western Australia 3.5 billion years old
common themes of life
single cell becomes multi cell, evolution increases diversity
organic compounds in organisms are products of biological activity--limestone and coral reefs
,biomolecules experience natural selection and have the same chemical properties that non-living
matter molecules do! so physics & chemistry define life.
6 issues
1. what are chemical and 3d structures of biomolecules?
2. how do these biomolecules interact together?
3. how does the cell make and use biomolecules?
4. how does energy conservation work and how is it used in the cell?
5. what systems exist to organize biomolecules and conduct functions using them?
6. how is genetic information stored, transmitted, and expressed?
prokaryotes
small asf (10um) and no membrane bound nucleus but nucleic matter just floats around in the
cytoplasm
biochemical breakdown
organism --> organ --> tissue --> cell --> organelle --> supramolecular assembly -->
macromolecule
life from the sea
h2o is thought to be the key to understanding macromolecule behaviors, and it's the solvent of
life and part of every transformation
lipid membranes and other insoluble compounds still have natures and functionality that's related
to water activity and interactions
living organisms are made of lifeless molecules, but collective behavior and interactions create
, properties that define life. no vital force or vitalism.
biochemistry has pushed science forward but it's primarily concerned with the wonder of life!
parts of the cell
nuclear membrane, nucleus, nucleolus
centrioles
golgi apparatus
chromatin
ribosomes
ER smooth/rough
lysosomes
cell membrane
mitochondrion
vacuole
specific biochemical adaptations
range of life, hot springs, subduction zones, artic tundra, antarctic dry fields, animal intestines,
college dormitories
living organisms
complicated structures and super organized
-intricate internal structures and lots of complicated molecules
-proteins, DNA, RNA, starches, lipids, etc
-inanimate objects are mixtures of simple compounds
