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Bio 183 Final Review (EXAM1)
Final Exam of Molecular Biology
46
Biology
Undergraduate 2
05/03/2011

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Term
Cytoskeleton
Definition
provides strength and support to the cell membrane
Term
Chloroplast
Definition
photosynthesis
Term
Mitochondria
Definition
ATP production
Term
Plasma Membrane
Definition
Acts as a selectively permeable barrier
Term
Methyl Group
Definition
CH3 on all amino acids
Term
Cells
Definition
the smallest unit of life that can live and reproduce on its own or as a multicelled organism
Term
SEM
Definition
A microscope technique that provides the greatest resolution in 3 dimensions
Term
glycosidic bonds;dehydration synthesis
Definition
The bonds created between monosaccharides to form polysaccharides are known as __ and are formed by ___
Term
Examples of Carbohydrates
Definition
Glucose and Fructose
Term
Biomembranes
Definition
bilayers of phospholipids with associated proteins and carbohydrates
Term
potential energy
Definition
chemical bonds are consider to be ___
Term
Enzymes
Definition
speeds up reactions by lowering the activation energy necessary to initiate the reaction
Term
Oxidized
Definition
NADH is converted to NAD+ and H+. We would say that NADH has been_____
Term
Glycolisis
Definition
Converts a 6-carbon glucose to two 3-carbon pyruvates
Term
Pyruvate to Acetyl CoA
Definition
Converts two 3-carbon molecules into two 2-carbon molecules to enter the Kreb Cycle
Term
Kreb Cycle
Definition
Converts Acetyl CoA into free CO2 and release ATP
Term
Cytosol
Definition
Where glycolysis takes place
Term
Secondary Metabolites
Definition
-help deter predation of certain organisms by causing the organism to taste bad
-help attract pollinators by producing a pleasant smell
-help organisms compete for resources by acting as a poison to competitors
-provide protection from DNA damage
Term
Examples of Secondary Metabolites
Definition
Flavonoids found in vanilla, atropine found in deadly nightshade, Beta-carotene found in carrots and flamingo feathers, streptomycin made by soil bacteria
Term
Golgi Apparatus
Definition
modifies, stores, and routes proteins
Term
Catabolism
Definition
the breakdown of a molecule into smaller components
Term
Anabolism
Definition
Synthesis of cellular molecules or macromolecules
Term
Amino Group
Definition
NH3 group on all amino acids
Term
Nucleus
Definition
Site of DNA and mRNA synthesis
Term
Endoplasmic Reticulum
Definition
synthesizes proteins(Rough), lipids, and steroids (Smooth)
Term
Phosphate Group
Definition
group used for cellular energy storage
Term
Carbohydrates
Definition
composed of carbon, hydrogen, and oxygen bonds
Term
Lipids
Definition
-Composed predominantly of hydrogen and carbon atoms
-Non-polar and therefore very insoluble
in water
(Steroids, cholesterol, testosterone)
Term
Steroids
Definition
Four interconnected rings of Carbon atoms
Term
Protein
Definition
Central carbon atom bonded to a hydrogen, carboxyl group, amino group, and a R group
Term
Carboxyl Group
Definition
o=c-o(-)
Term
Amino Group
Definition
NH3
Term
DNA
Definition
Deoxyribose sugar with T
Term
RNA
Definition
Phosphate, Sugar, Base (Ribose with a U)
Term
Primary Structure
Definition
Linear sequence of amino acids
Term
Secondary
Definition
assembly of subunits into functional protein
Term
Tertiary Structure
Definition
Hydrogen bonding within peptide backbone
Term
Quaternary
Definition
3-dimensional shape of polypeptide chain
Term
Crenation
Definition
Shrinking in a hypertonic solution
Term
Turgor Pressure
Definition
pushes plasma membrane against cell wall
Term
plasmolysis
Definition
plants wilt because water leaves the plant cells
Term
ATP
Definition
functions by providing the energy to drive energonic reactions
Term
Oxidative phosphorylation, Substrate-level phosphorylation, redox reactions
Definition
Produces ATP
Term
Reduction of O2
Definition
source of energy that directly drives the synthesis of ATP during oxidative phosphorylation
Term
Secondary metabolites
Definition
produced mainly from plant sources
Term
Hydrolysis
Definition
a chemical reaction which uses a molecule of water to break apart another molecule
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