UIUC MCB 150 Final Exam 1 Questions
And Correct Answers.
Cell Theory - Answer all organisms are made of cells, all existing cells are produced by other living cells,
the cell is the most basic unit of life
Prokaryotes - Answer Cells that do not contain nuclei, bacteria and archaea
-singular circular chromosome
-no membrane bound organelles
-nucleolus
Archaea - Answer Domain of unicellular prokaryotes that have cell walls that do not contain
peptidoglycan
-live in harsh environments
Eukaryotes - Answer Cells that contain nuclei
-multiple linear chromosomes in the nucleus
-extensive cytoskeleton
Central Dogma - Answer DNA-transcription-RNA-translation-protein
Bacteria - Answer Domain of unicellular prokaryotes that have cell walls containing peptidoglycan
Covalent bond - Answer A chemical bond that involves sharing a pair of electrons between atoms in a
molecule
, Polar: uneven sharing
Nonpolar: even sharing
Ionic bonds - Answer Formed when one or more electrons are transferred from one atom to another
Macromolecules - Answer any large molecules made up of smaller molecules (monomers) joined
together into a polymer
Condensation reactions - Answer a chemical reaction in which two or more molecules combine to
produce water or another simple molecule
Hydrolysis - Answer Breaking down complex molecules by the chemical addition of water
Nucleoid - Answer A dense region of DNA in a prokaryotic cell.
Plasmids - Answer small circular DNA molecules that replicate separately from the bacterial
chromosome
Ribosomes - Answer site of protein synthesis
Cytoskeleton - Answer A network of fibers that holds the cell together, helps the cell to keep its shape,
and aids in movement
-Prokaryotes have less extensive cytoskeleton
Cell wall - Answer a fibrous layer found outside the plasma membrane of most bacteria and archaea
and eukaryotes
flagellum - Answer A long, hairlike structure that grows out of a cell and enables the cell to move.
And Correct Answers.
Cell Theory - Answer all organisms are made of cells, all existing cells are produced by other living cells,
the cell is the most basic unit of life
Prokaryotes - Answer Cells that do not contain nuclei, bacteria and archaea
-singular circular chromosome
-no membrane bound organelles
-nucleolus
Archaea - Answer Domain of unicellular prokaryotes that have cell walls that do not contain
peptidoglycan
-live in harsh environments
Eukaryotes - Answer Cells that contain nuclei
-multiple linear chromosomes in the nucleus
-extensive cytoskeleton
Central Dogma - Answer DNA-transcription-RNA-translation-protein
Bacteria - Answer Domain of unicellular prokaryotes that have cell walls containing peptidoglycan
Covalent bond - Answer A chemical bond that involves sharing a pair of electrons between atoms in a
molecule
, Polar: uneven sharing
Nonpolar: even sharing
Ionic bonds - Answer Formed when one or more electrons are transferred from one atom to another
Macromolecules - Answer any large molecules made up of smaller molecules (monomers) joined
together into a polymer
Condensation reactions - Answer a chemical reaction in which two or more molecules combine to
produce water or another simple molecule
Hydrolysis - Answer Breaking down complex molecules by the chemical addition of water
Nucleoid - Answer A dense region of DNA in a prokaryotic cell.
Plasmids - Answer small circular DNA molecules that replicate separately from the bacterial
chromosome
Ribosomes - Answer site of protein synthesis
Cytoskeleton - Answer A network of fibers that holds the cell together, helps the cell to keep its shape,
and aids in movement
-Prokaryotes have less extensive cytoskeleton
Cell wall - Answer a fibrous layer found outside the plasma membrane of most bacteria and archaea
and eukaryotes
flagellum - Answer A long, hairlike structure that grows out of a cell and enables the cell to move.
