Dental Admissions test biology
Miscelanous Questions With Answers
ingestion - Answer - aquisition of food
assimilation - Answer - building of new tissues from digested food
glucose + fructose = - Answer - sucrose
glucose + galctose= - Answer - lactose
glucose +glucose = - Answer - maltose
what are the three types of dissachrides? - Answer - glycogen (energy storage in animals), starch
(energy storage in plants), cellulose (polymer of beta glucose structural component, (chitin (like
cellulose, but glucose has a nitrogen/structural molecules)
where is chitin found? - Answer - fungi, exoskeleton of insects, arthropods, and mollusks
what do enzymes do? - Answer - they lower activation energy and increase the rate of the reaction.
Does not affect the overall E.
competitive inhibitors - Answer - compete with substrate for binding an active site; can be overcome by
adding more substrate; v max not affected
noncompetitive inhibitors - Answer - bind at allosteric site; diminshing vmax
holoenzyme - Answer - union of cofactor and apoenzyme
apoenyzme - Answer - a protein portion of an enzyme, inactive without a cofactor
, cooperativity - Answer - enzyme more receptive to additional substrate after one substrate molecule
attaches to an active site
what is an example of cooperatvity? - Answer - hemoglobin is more capable of binding to oxygen after
already binding to one
prokaryotes - Answer - bacteria,cell wall, nuleoid region-- (naked dna), ribosomes (not membrane
bound)(70S and 30S ) flagella not of microtubules
fungi and plants both have - Answer - cell wall, nucleus, membrane bound organelles
Eukaryotes contain what inside their nucleaus - Answer - nucleolus- components of DNA in the process
of manufacturing components of ribosomes
chromatin - Answer - the normal form of DNA, spread out in a threadlike matrix
rough er - Answer - creates glycoproteins by attaching polysaccharides to polypeptides
smooth er - Answer - synthesis of lipids and hormones for export (liver)
golgi appratus - Answer - modify (glycosylation), and package proteins and lipids into vessicles
centrioles - Answer - microtubule involved in spindle organization during cell division/ No membrane
centrosomes - Answer - EUKARYOTIC, chromosomes where spindle fibers attach
lysosome - Answer - membrane bound, involved in ingestion/ hydrolytic enzymes. LOw pH- inactive in
cytosol and NOT IN PLANT CELLs
Miscelanous Questions With Answers
ingestion - Answer - aquisition of food
assimilation - Answer - building of new tissues from digested food
glucose + fructose = - Answer - sucrose
glucose + galctose= - Answer - lactose
glucose +glucose = - Answer - maltose
what are the three types of dissachrides? - Answer - glycogen (energy storage in animals), starch
(energy storage in plants), cellulose (polymer of beta glucose structural component, (chitin (like
cellulose, but glucose has a nitrogen/structural molecules)
where is chitin found? - Answer - fungi, exoskeleton of insects, arthropods, and mollusks
what do enzymes do? - Answer - they lower activation energy and increase the rate of the reaction.
Does not affect the overall E.
competitive inhibitors - Answer - compete with substrate for binding an active site; can be overcome by
adding more substrate; v max not affected
noncompetitive inhibitors - Answer - bind at allosteric site; diminshing vmax
holoenzyme - Answer - union of cofactor and apoenzyme
apoenyzme - Answer - a protein portion of an enzyme, inactive without a cofactor
, cooperativity - Answer - enzyme more receptive to additional substrate after one substrate molecule
attaches to an active site
what is an example of cooperatvity? - Answer - hemoglobin is more capable of binding to oxygen after
already binding to one
prokaryotes - Answer - bacteria,cell wall, nuleoid region-- (naked dna), ribosomes (not membrane
bound)(70S and 30S ) flagella not of microtubules
fungi and plants both have - Answer - cell wall, nucleus, membrane bound organelles
Eukaryotes contain what inside their nucleaus - Answer - nucleolus- components of DNA in the process
of manufacturing components of ribosomes
chromatin - Answer - the normal form of DNA, spread out in a threadlike matrix
rough er - Answer - creates glycoproteins by attaching polysaccharides to polypeptides
smooth er - Answer - synthesis of lipids and hormones for export (liver)
golgi appratus - Answer - modify (glycosylation), and package proteins and lipids into vessicles
centrioles - Answer - microtubule involved in spindle organization during cell division/ No membrane
centrosomes - Answer - EUKARYOTIC, chromosomes where spindle fibers attach
lysosome - Answer - membrane bound, involved in ingestion/ hydrolytic enzymes. LOw pH- inactive in
cytosol and NOT IN PLANT CELLs
