BIO 116 Final Exam Miami University questions with correct answers
0 view 0 purchase
Course
NU1426
Institution
NU1426
BIO 116 Final Exam Miami University questions with correct answers
What feature of dietary fiber is responsible for its role in maintain gastro-intestinal health?
a. Bonds between glucose molecules are unstable, and the digestive system can break down the fiber with minimal energy, effort, or str...
BIO 116 Final Exam Miami University questions
with correct answers
1). What feature of dietary fiber is responsible for its role in maintain gastro-intestinal health?
a. bonds between glucose molecules are unstable, and the digestive system can break
down the fiber with minimal energy, effort, or strain on the system.
b. bonds between glucose molecules that cannot be broken by our digestive enzymes
c. chains consist solely of glucose and no other monosaccharides
d. it comes from plants
Ans: b. Bonds between glucose molecules that cannot be broken by our digestive
enzymes
2). Which of the following is not an example of how hydrogen bonds affect the chemistry of
living organisms?
a. hydrogen bonds between water molecules keep the main component of cellular and
extracellular spaces liquid across all biologically relevant temperatures.
b. hydrogen bonds are responsible for the structure of nucleic acids like dna
c. hydrogen bonds among amino acids help dictate the secondary structure of proteins
d. the number of hydrogen bonds in fatty acids determines if triglycerides are saturated or
unsaturated.
Ans: d. The number of hydrogen bonds in fatty acids determines if triglycerides are
saturated or unsaturated.
3). Why would water striders not be able to walk on cyclohexane the way they do on water?
a. no hydrogen bonds form among molecules of cyclohexane, so there is no surface
tension
b. non-polar molecules like cyclohexane do not exist as liquids
c. polar molecules like cyclohexane in the liquid state do not have surface tension
d. friction from the water striders' legs on the highly flammable cyclohexane would cause
it to ignite
Ans: a. No hydrogen bonds form among molecules of cyclohexane, so there is no
surface tension
4). Which of the following types of bonds is the strongest?
a. covalent
b. hydrogen
PaperStoc.com Page 1 of 35
, c. ionic
d. organic
Ans: a. Covalent
5). What property of unstable isotopes make them useful in medial imaging technologies?
a. unstable isotopes break down and go away after the imaging is complete
b. unstable isotopes break down, and must be purchased again by the patient, make more
money for the hospital
c. as the unstable isotope decay, radioactivity is released, allowing the location and
movement of the isotopes in the body to be tracked by detection equipment
d. unstable isotope are not medically useful, only stable isotopes are used in medicine
Ans: c. As the unstable isotope decay, radioactivity is released, allowing the location
and movement of the isotopes in the body to be tracked by detection equipment
6). What is the primary function of triglycerides?
a. cell communication and signaling
b. direct source of energy
c. energy storage
d. structural
Ans: c. Energy storage
7). Heat-shock proteins are proteins in cells that are expressed during times of stress,
especially thermal stress. these proteins come along other proteins to prevent them from
denaturing (unfolding), and to help them re-fold correctly. what level of protein structure do
heat-shock proteins help preserve?
a. primary
b. secondary
c. tertiary
d. quarternary
Ans: c. Tertiary
8). Cell membranes have many proteins embedded in them. many of these proteins project all
the the way across a cell membrane and stick out into the intracellular and extracellular
spaces. recall that amino acids have different side groups with different basic properties.
parts of the protein in the middle of the cell membrane are primarily made up of amino
acids with...
a. non-polar side groups
b. polar, uncharged side groups
PaperStoc.com Page 2 of 35
, c. polar, positively charged side groups
d. polar, negatively charged side groups
Ans: a. Non-polar side groups
9). According to the homeoviscous adaptation hypothesis, which of the following statements
is true about cell membranes?
a. cells acclimated to warmer temperatures should have membranes made of
phospholipids with fewer double bonds in the fatty acid tails than cells acclimated to
colder temperatures.
b. cells acclimated to warmer temperatures should have membranes made of
phosopholipids with more double bonds in the fatty acid tails than cells acclimated to
colder temperatures.
c. cells acclimated to dry conditions should have membranes made of phosopholipids
with fewer double bonds in the fatty acid tails than cells acclimated to colder
temperatures.
d. cells acclimated to dry conditions should have membranes made of phosopholipids
with more double bonds in the fatty acid tails than cells acclimated to colder
temperatures.
e. cells acclimated to warmer temperatures should have smaller enzymes than cells
acclimated to colder temperatures.
f. cells acclimated to warmer temperatures should have larger enzymes than cells
acclimated to colder temperatures.
Ans: a. Cells acclimated to warmer temperatures should have membranes made of
phospholipids with fewer double bonds in the fatty acid tails than cells acclimated to
colder temperatures.
10). Which of the following is not part of a nucleotide?
a. 5-carbon sugar
b. amino acid
c. nitrogenous base
d. phosphate group
Ans: b. amino acid
11). Neurons must maintain an electrical potential across the membrane in order to be able to
send electrical nerve signals. they do this by transporting positively charged sodium ions
from the inside of the cell to the high-sodium concentration environment outside of the
cell. what type of transport does this involve?
a. active transport
b. bulk transport
c. passive transport
PaperStoc.com Page 3 of 35
, Ans: a. Active transport
12). A fish whose body fluids have an overall solute concentration of 300 mosm. it lives in the
ocean, which has a concentration of about 1000 mosm. the ocean is [hypertonic/
hypertonic] to the fish, so water diffuses [into/out of] the fish.
a. hypertonic, into
b. hypertonic, out of
c. hypotonic, into
d. hypotonic, out of
Ans: b. Hypertonic, out of
13). Which of the following is an accurate differences between prokaryotic and eukaryotic
cells?
a. prokaryotic cells are larger
b. eukaryotic cells have nuclei, prokaryotic cells do not
c. eukaryotic cells have ribosomes, prokaryotic cells do not
d. eukaryotic cells have dna, prokaryotic cells do not
e. prokaryotic cells have cell walls, eukaryotic cells do not
Ans: b. Eukaryotic cells have nuclei, prokaryotic cells do not
14). Which organelle is most likely to be most prominent in cells of the intestines that are
producing digestive enzymes to break down food in the digestive tract?
a. free ribosomes
b. lysozymes
c. mitochondria
d. smooth er
e. rough er
Ans: e. Rough ER
15). Nitrogen (n) is more electronegative than hydrogen (h). which of the following is a correct
statement about the atoms in ammonia (nh3)?
a. the nitrogen atom has a partial positive charge; each hydrogen atom has a partial
negative charge.
b. each hydrogen atom has a partial positive charge; the nitrogen atom has a partial
negative charge.
c. ammonia has an overall positive charge.
d. ammonia has an overall negative charge.
PaperStoc.com Page 4 of 35
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Academik001. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
