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UIUC MCB 150 Exam 1 Questions and
Correct Answers/ Latest Update / Already
Graded
Cell Theory
Ans: 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
Ans: Cells that do not contain nuclei, bacteria and archaea
-singular circular chromosome
-no membrane bound organelles
-nucleolus
Archaea
Ans: Domain of unicellular prokaryotes that have cell walls that
do not contain peptidoglycan
-live in harsh environments
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Eukaryotes
Ans: Cells that contain nuclei
-multiple linear chromosomes in the nucleus
-extensive cytoskeleton
Central Dogma
Ans: DNA-transcription-RNA-translation-protein
Bacteria
Ans: Domain of unicellular prokaryotes that have cell walls
containing peptidoglycan
Covalent bond
Ans: A chemical bond that involves sharing a pair of electrons
between atoms in a molecule
Polar: uneven sharing
Nonpolar: even sharing
Ionic bonds
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Ans: Formed when one or more electrons are transferred from
one atom to another
Macromolecules
Ans: any large molecules made up of smaller molecules
(monomers) joined together into a polymer
Condensation reactions
Ans: a chemical reaction in which two or more molecules
combine to produce water or another simple molecule
Hydrolysis
Ans: Breaking down complex molecules by the chemical
addition of water
Nucleoid
Ans: A dense region of DNA in a prokaryotic cell.
Plasmids
Ans: small circular DNA molecules that replicate separately
from the bacterial chromosome
All rights reserved © 2025/ 2026 |
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Ribosomes
Ans: site of protein synthesis
Cytoskeleton
Ans: 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
Ans: a fibrous layer found outside the plasma membrane of
most bacteria and archaea and eukaryotes
flagellum
Ans: A long, hairlike structure that grows out of a cell and
enables the cell to move.
fimbria
Ans: A short, hairlike appendage of a prokaryotic cell that
helps it adhere to the substrate or to other cells.
All rights reserved © 2025/ 2026 |
UIUC MCB 150 Exam 1 Questions and
Correct Answers/ Latest Update / Already
Graded
Cell Theory
Ans: 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
Ans: Cells that do not contain nuclei, bacteria and archaea
-singular circular chromosome
-no membrane bound organelles
-nucleolus
Archaea
Ans: Domain of unicellular prokaryotes that have cell walls that
do not contain peptidoglycan
-live in harsh environments
All rights reserved © 2025/ 2026 |
, Page |2
Eukaryotes
Ans: Cells that contain nuclei
-multiple linear chromosomes in the nucleus
-extensive cytoskeleton
Central Dogma
Ans: DNA-transcription-RNA-translation-protein
Bacteria
Ans: Domain of unicellular prokaryotes that have cell walls
containing peptidoglycan
Covalent bond
Ans: A chemical bond that involves sharing a pair of electrons
between atoms in a molecule
Polar: uneven sharing
Nonpolar: even sharing
Ionic bonds
All rights reserved © 2025/ 2026 |
, Page |3
Ans: Formed when one or more electrons are transferred from
one atom to another
Macromolecules
Ans: any large molecules made up of smaller molecules
(monomers) joined together into a polymer
Condensation reactions
Ans: a chemical reaction in which two or more molecules
combine to produce water or another simple molecule
Hydrolysis
Ans: Breaking down complex molecules by the chemical
addition of water
Nucleoid
Ans: A dense region of DNA in a prokaryotic cell.
Plasmids
Ans: small circular DNA molecules that replicate separately
from the bacterial chromosome
All rights reserved © 2025/ 2026 |
, Page |4
Ribosomes
Ans: site of protein synthesis
Cytoskeleton
Ans: 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
Ans: a fibrous layer found outside the plasma membrane of
most bacteria and archaea and eukaryotes
flagellum
Ans: A long, hairlike structure that grows out of a cell and
enables the cell to move.
fimbria
Ans: A short, hairlike appendage of a prokaryotic cell that
helps it adhere to the substrate or to other cells.
All rights reserved © 2025/ 2026 |
