ZOO1114 – Practice Midterm 2– Spring2010 Form A Multiple Choice: Choose the BEST answer. Metabolism (12 questions) 1. A process that produces water and carbon dioxide is a) respiration b) fermentation c) photosynthesis d) Calvin cycle 2. During respiration, ATP is formed as a) hydrogen ions (protons) move through ATP-ase proteins embedded in the inner membrane. b) electrons are accumulated in the inner membrane. c) hydrogen ions (protons) are accumulated in the outer membrane. d) phosphate molecules are attached to NAD molecules. 3. Which of the following descriptions of glycolysis is correct? a) During glycolysis (which takes place in the mitochondrion), six-carbon glucose molecules are broken down to simpler compounds but no ATP is formed. b) During glycolysis (which takes place in the cytoplasm), three-carbon sugar molecules are assembled into more complex compounds but no ATP is required. c) During glycolysis (which takes place in the mitochondrion), six-carbon glucose molecules are broken down to simpler compounds and some ATP is formed. d) During glycolysis (which takes place in the cytoplasm), six-carbon glucose molecules are broken down to simpler compounds and some ATP is formed. 4. The shape of an enzyme depends on a) the number of amino acids at the active site. c) the order of amino acids in its chain. b)the nucleotide to amino ratio in its chain. d) none of the above. 5. During enzymatic action, the enzyme a) chemically modifies the product. c) is used up. b) raises the energy needed for a reaction to occur. d) forms a temporary complex with the substrate. 6. Von Helmont’s experiment is a good demonstration of a) the importance of decomposition in the carbon cycle b) the fact that H, O and C make up the vast bulk of plant biomass c) how plants “purify” the air by taking in CO 2 and releasing O 2 8. The first part of the photosynthesis reaction captures light energy in the form of chemicals (ATP and NADPH) while the second part, called the Calvin cycle, a) releases that energy into the air c) traps carbon dioxide molecules to help produce sugar b) uses that energy to help produce sugar d) b and c are both correct 9. The main purpose or function of respiration is to a) make oxygen for animals to breathe c) manufacture sugar molecules b) increase the levels of carbon dioxide in the atmosphere d) release the energy locked up in sugar molecules 12. In the carbon cycle, ____ percent of photons are captured by plants for photosynthesis, and ______ percent of glucose is broken down by respiration. a) 1 and 36 b) 1 and 38 c) 1 and >99 d) 15 and >99 History of Life continued (8 questions) 13. The loss of cell walls by some prokaryotes was instrumental to the evolution of the eukarya because a) cell walls allow for external digestion c) cytosis allowed for the formation of membrane bound organelles b) cell walls got in the way of sexual reproduction d) peptidoglycan caused too many mutations
Multiple Choice: Choose the BEST answer. Metabolism (12
questions)
1. A process that produces water and carbon dioxide is a)
respiration b) fermentation c) photosynthesis d) Calvin cycle 2.
During respiration, ATP is formed as a) hydrogen ions (protons)
move through ATP-ase proteins embedded in the inner membrane. b)
electrons are accumulated in the inner membrane. c) hydrogen ions
(protons) are accumulated in the outer membrane. d) phosphate
molecules are attached to NAD molecules. 3. Which of the following
descriptions of glycolysis is correct? a) During glycolysis (which
takes place in the mitochondrion), six-carbon glucose molecules are
broken down to simpler compounds but no ATP is formed. b) During
glycolysis (which takes place in the cytoplasm), three-carbon sugar
molecules are assembled into more complex compounds but no ATP is
required. c) During glycolysis (which takes place in the
mitochondrion), six-carbon glucose molecules are broken down to
simpler compounds and some ATP is formed. d) During glycolysis
(which takes place in the cytoplasm), six-carbon glucose molecules
are broken down to simpler compounds and some ATP is formed. 4. The
shape of an enzyme depends on a) the number of amino acids at the
active site. c) the order of amino acids in its chain. b)the
nucleotide to amino ratio in its chain. d) none of the above. 5.
During enzymatic action, the enzyme a) chemically modifies the
product. c) is used up. b) raises the energy needed for a reaction
to occur. d) forms a temporary complex with the substrate. 6. Von
Helmonts experiment is a good demonstration of a) the importance of
decomposition in the carbon cycle b) the fact that H, O and C make
up the vast bulk of plant biomass c) how plants purify the air by
taking in CO2 and releasing O2 8. The first part of the
photosynthesis reaction captures light energy in the form of
chemicals (ATP and NADPH) while the second part, called the Calvin
cycle, a) releases that energy into the air c) traps carbon dioxide
molecules to help produce sugar b) uses that energy to help produce
sugar d) b and c are both correct 9. The main purpose or function
of respiration is to a) make oxygen for animals to breathe c)
manufacture sugar molecules b) increase the levels of carbon
dioxide in the atmosphere d) release the energy locked up in sugar
molecules 12. In the carbon cycle, ____ percent of photons are
captured by plants for photosynthesis, and ______ percent of
glucose is broken down by respiration. a) 1 and 36 b) 1 and 38 c) 1
and >99 d) 15 and >99
History of Life continued (8 questions) 13. The loss of cell
walls by some prokaryotes was instrumental to the evolution of the
eukarya because a) cell walls allow for external digestion c)
cytosis allowed for the formation of membrane bound organelles b)
cell walls got in the way of sexual reproduction d) peptidoglycan
caused too many mutations
ZOO1114 Practice Midterm 2 Spring2010 Form A
14. In the portion of the animal phylogeny at the right, 1
indicates the evolution of ___________, and 3 indicates the
evolution of _________________. a) multicellularity, a coelum b)
tissues, a coelum c) tissues, bilateral symmetry d)
multicellularity, pseudocoel 15. In the portion of the animal
phylogeny at the right, in what other group would you find the
trait represented by 4? a) gastropods b) platyhelminthes c)
chordates d) echinoderms 16. The sister group to the bilateria is
the a) parazoa b) pseudocoelomates c) radiata d) chordata 17. Which
of the following is the best evidence for the serial endosymbiosis
hypothesis? a) mitochondria are about the same size as most
eukaryotic cells b) mitochondria have DNA c) mitochondria resemble
raisins d) mitochondria use cellular respiration to turn glucose
into ATP and heat 18. Cephalization evolves in the bilateria
resulting in, among other things: a) true mesenteries allowing for
organs to evolved and diversify b) the first circulatory system c)
the ability to find a brain in the anterior part of the organism d)
a and c 20. What principles are demonstrated in the diagram to the
right? a) the embryos of Drosophila and Mice are adapted to
different environments b) segmentation in the embryos of Drosophila
and Mice are controlled by the same genes c) the genes regulating
development in Drosophila and Mice were inherited from a common
ancestor d) b and c e) a and c
ZOO1114 Practice Midterm 2 Spring2010 Form A
Extinction (3 questions) 21. Most of the extinctions for which
we have a record: a) have been on islands b) have been in Europe c)
have been in the Tropics d) have been of insect species 22. Why is
the KT mass extinction particularly important in human history? a)
The first human fossils were found in the asteroid debris. b)
Humans are bringing on the KT mass extinction through habitat
destruction and the introduction of invasive species. c) By wiping
out most dinosaurs, the KT presented an opportunity for mammals to
diversify. 23. You would most likely recognize Empty Forest
Syndrome by: a) The lack of the forests top predators c) The
abundance of invasive species b) The lack of human hunting d) The
inaccessibility of the park containing the forest
Biodiversity (5 questions) 24. The total number species on earth
to which scientists have given names is _____ and most of them are
_____. a) 420, ants b) 70 thousand, insects c) 1.5 million, insects
d) 150 million, bacteria 26. According to biodiversity theory, why
would you expect to find more species of beetles than birds in a
forest? a) birds are highly mobile and can quickly colonize a
forest patch b) insects are smaller and thus likely to have larger
population sizes c) insects are tiny and prone to rapid extinction
d) birds specialize on a variety of different resources in their
habitat 27. You are a non-toxic coral snake mimic. If you wanted to
maximize your ability to survive and reproduce, what would you want
to happen to your models population size? a) decrease by half b)
stay the same c) double 28. If maize, rice, and wheat crops were
killed by bioterrorists, what percent of the earths food supply
would disappear? a) 5 b) 10 c) 50 d) 80 e) 90
ZOO1114 Practice Midterm 2 Spring2010 Form A
Carbon Cycle and Climate Change (5 questions) 29. Based on our
best estimate, most of the earths carbon is stored in a) the
atmosphere b) fossil fuels c) the ocean d) living organisms 30. Why
have global sea levels been rising about 1 mm / year? a) warm ocean
water takes up more space than cool ocean water b) the sun is lower
on its horizon c) global warming has increased the amount of
rainfall 31. The north pole is colder than the equator primarily
because a) it is farther from the sun b) the sun is lower on its
horizon c) fossil fuel emissions tend to gather around the equator
32. A major reason that the earth does not reach the temperatures
on the lunar surface is because: a) the earth is shrouded in CO2 b)
the earth faces the sun at a different angle than the moon c) the
earth is never warmed by asteroid collisions d) a and c 33.
According to the most recent models of global climate, under
current trends, we should expect Oklahoma in the future to be a)
mostly warmer and wetter b) mostly warmer and drier c) experiencing
more severe weather events d) b and c
