BIOLOGY 1500 MIDTERM EXAM
QUESTIONS AND ANSWERS
What reactions occur for amino acid monomers when you eat protein like fish -
ANSWER-amino acids in the fish are released in hydrolysis reactions and
incorporated into other protein in dehydration reactions
write the formula for a monosaccharide that has three carbons - ANSWER-C3H603
Which is the formula for maltose - ANSWER-C12H22O11
A cow is given antibodies to fight against infection. Why would one consider giving
the cow a pill containing a gut culture (prokaryotes) - ANSWER-The antibiotic
probably killed the cellulose-digesting prokaryotes in the cow's stomach. The
absence of these prokaryotes would hamper the cow's ability to obtain energy from
food. Thus prokaryotic species are reintroduced, in appropriate combinations, in the
gut culture given.
compare the structure of fat (triglyceride) with a phospholipid - ANSWER-both has
attached fatty acids. But the glycerol of fat has three fatty acids attached, whereas
the glycerol of a phospholipid is attached to only two fatty acids with one phosphate
group
Why are human sex hormones considered lipids - ANSWER-hormones are steroids
and they are hydrophobic
What parts of a polypeptide participate in the bonds that hold together the secondary
structure? - ANSWER-this involves hydrogen bonds between the atoms and the
polypeptide backbone
what parts of a polypeptide participate in the bonds that hold together the tertiary
structure - ANSWER-involves interactions between atoms of side chains of amino
acid subunits (R groups)
Where do you expect a polypeptide region rich in valine, leucine, and isoleucine be
located in a folded polypeptide - ANSWER-all of these are nonpolar, hydrophobic
amino acids. This could be found in the interior of a folded polypeptide
How would sequencing the entire genome of an organism help scientists to
understand how the organism functioned? - ANSWER-DNA encodes all proteins.
Proteins carry out the work of the cells
Given the function of DNA, why would you expect two species with very similar traits
to also give similar genome. - ANSWER-DNA sequences carries the info requires to
make proteins that determine particular traits. if the traits are similar, then the
proteins are to be similar as well, hence DNA should also be similar.
which structure is not part of the ensomembrance system? - ANSWER-chloroplast
QUESTIONS AND ANSWERS
What reactions occur for amino acid monomers when you eat protein like fish -
ANSWER-amino acids in the fish are released in hydrolysis reactions and
incorporated into other protein in dehydration reactions
write the formula for a monosaccharide that has three carbons - ANSWER-C3H603
Which is the formula for maltose - ANSWER-C12H22O11
A cow is given antibodies to fight against infection. Why would one consider giving
the cow a pill containing a gut culture (prokaryotes) - ANSWER-The antibiotic
probably killed the cellulose-digesting prokaryotes in the cow's stomach. The
absence of these prokaryotes would hamper the cow's ability to obtain energy from
food. Thus prokaryotic species are reintroduced, in appropriate combinations, in the
gut culture given.
compare the structure of fat (triglyceride) with a phospholipid - ANSWER-both has
attached fatty acids. But the glycerol of fat has three fatty acids attached, whereas
the glycerol of a phospholipid is attached to only two fatty acids with one phosphate
group
Why are human sex hormones considered lipids - ANSWER-hormones are steroids
and they are hydrophobic
What parts of a polypeptide participate in the bonds that hold together the secondary
structure? - ANSWER-this involves hydrogen bonds between the atoms and the
polypeptide backbone
what parts of a polypeptide participate in the bonds that hold together the tertiary
structure - ANSWER-involves interactions between atoms of side chains of amino
acid subunits (R groups)
Where do you expect a polypeptide region rich in valine, leucine, and isoleucine be
located in a folded polypeptide - ANSWER-all of these are nonpolar, hydrophobic
amino acids. This could be found in the interior of a folded polypeptide
How would sequencing the entire genome of an organism help scientists to
understand how the organism functioned? - ANSWER-DNA encodes all proteins.
Proteins carry out the work of the cells
Given the function of DNA, why would you expect two species with very similar traits
to also give similar genome. - ANSWER-DNA sequences carries the info requires to
make proteins that determine particular traits. if the traits are similar, then the
proteins are to be similar as well, hence DNA should also be similar.
which structure is not part of the ensomembrance system? - ANSWER-chloroplast
