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Sample Academic Biology Midterm

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Which of the following are likely topics for a course in biology?
a.
Why does the Texas horned lizard squirt blood out of its eyes?
b.
How is a banded pipefish able to hide in its environment of seaweeds?
c.
What chemicals cause plant stems to lengthen or flowers to bloom?
d.
All of these.
 

 2. 

Questions about living things that can be answered by biologists are _____.
a.
what
c.
how
b.
why
d.
all of these
 

 3. 

The part of an experiment in which all conditions are kept the same is the _____.
a.
hypothesis
c.
conclusion
b.
control
d.
independent variable
 

 4. 

Technology has allowed humans to produce more food and reduce the chance of starvation by individuals in some countries. How has this advance created additional technological needs?
a.
The technology has allowed populations to continue to grow, creating the need for additional food.
b.
The technology caused salts to be deposited in soils.
c.
The technology caused the false belief that the problem was solved forever.
d.
All of these.
 

 5. 

Water is lost to the abiotic parts of the biosphere from the biotic parts by the process of _____.
a.
precipitation
c.
transpiration
b.
photosynthesis
d.
infiltration
 

 6. 

Sea stars live in saltwater ecosystems. Some species live in shallow tidal pools, while others live in the deepest parts of the oceans. This is a description of the _____ of sea stars.
a.
habitat
c.
niche
b.
community
d.
none of these
 
 
midtermpractice_files/i0080000.jpg
Figure 2-1
 

 7. 

Referring to Figure 2-1, as matter and energy move from grasses to coyotes, the amount of available energy _____.
a.
increases
b.
decreases
c.
decreases then increases
d.
increases or decreases but population size remains the same
 

 8. 

The organisms growing on the log in Figure 2-8 are ____?
midtermpractice_files/i0100000.jpg
Figure 2-8
a.
producers
c.
carnivores
b.
autotrophs
d.
decomposers
 

 9. 

An uncut lawn becomes a meadow and eventually a forest. This process is an example of _____.
a.
aphotic zones
c.
estuary
b.
primary succession
d.
secondary succession
 
 
midtermpractice_files/i0120000.jpg
Figure 3-3
 

 10. 

In Figure 3-3, where will you be most likely to find the greatest diversity?
a.
A
c.
C
b.
B
d.
D
 
 
midtermpractice_files/i0140000.jpg
Figure 3-6
 

 11. 

Look at the graph in Figure 3-6. What does this graph tell us about this species of plant?
a.
too much sunlight can hurt them
c.
heat is damaging to them
b.
they thrive in a lot of sun
d.
they need plenty of water
 
 
midtermpractice_files/i0160000.jpg
Figure 3-7
 

 12. 

What type of species would be most likely found in the area labeled D in Figure 3-7?
a.
one that requires plenty of oxygen
b.
plants that require light
c.
amphibians that need a warm habitat
d.
decomposers that feed on dead organisms
 

 13. 

If you released a new species of deer into each of the stages shown in Figure 3-5, in which stage would the species be most successful?
midtermpractice_files/i0180000.jpg
Figure 3-5
a.
A
c.
C
b.
B
d.
D
 

 14. 

Which of the following problems do immigration and emigration pose for demographers?
a.
Demographers must provide for more city services.
b.
Demographers cannot identify the age structure of immigrants.
c.
Demographers find it difficult to make predictions about populations.
d.
Demographers study growth rates, age structures, and geographic distributions of populations.
 

 15. 

The effect of local population fluctuations in rapidly expanding suburbs may _____ schools, roads, and police and fire services.
a.
stress
c.
have no effect on
b.
reduce the need for
d.
none of these
 

 16. 

The effect of movement of people between counties has _____ effect on total world population.
a.
a damaging
c.
a great
b.
little
d.
no
 

 17. 

A country that has a stable population is characterized by an age structure that is _____.
a.
about the same among all groups
b.
largest among pre-reproductive years
c.
largest among reproductive years
d.
largest among post-reproductive years
 

 18. 

The giant land tortoises of the Galapagos Islands and sequoias of California have among the longest life spans of any organisms. This indicates that they likely employ a strategy of _____.
a.
rapid reproduction
c.
early sexual maturity
b.
slow growth
d.
all of these
 

 19. 

For a particular species, the carrying capacity is the maximum number of individual organisms that _____.
a.
the species could reach in a given time period if all the offspring survive and reproduce
b.
could be supported by a given environment indefinitely
c.
are in their post-reproductive years
d.
could be supported by any environment over a period of one year
 

 20. 

Population control factors whose effects increase as the size of the population increases are _____.
a.
abiotic factors
c.
limiting factors
b.
density-dependent factors
d.
density-independent factors
 

 21. 

How many electrons can a carbon atom share?
a.
one
c.
three
b.
two
d.
four
 

 22. 

Electrons move about the nucleus of an atom in regions called _____.
a.
electron clouds
c.
air
b.
nuclei
d.
isotopes
 

 23. 

Water dissolves many ionic and molecular compounds because of its _____.
a.
ionic bonding
c.
covalent bonding
b.
polarity
d.
hydrogen bonding
 

 24. 

When molecules of glucose and fructose combine to form sucrose, they do so by _____.
a.
hydrolysis
c.
condensation
b.
electron clouds
d.
radiation
 

 25. 

A chlorine atom becomes a chloride ion when it _____.
a.
gains an electron
c.
gains a neutron
b.
loses an electron
d.
loses a proton
 

 26. 

The total number of atoms in a molecule of sucrose, C12H22O11, is _____.
a.
11
c.
22
b.
12
d.
45
 

 27. 

An unsaturated lipid contains _____.
a.
more oxygen than hydrogen
c.
ionic bonds
b.
double bonds
d.
only one fatty acid
 

 28. 

Unlike carbohydrates and fats, proteins contain _____.
a.
nitrogen
c.
hydrogen
b.
carbon
d.
oxygen
 

 29. 

Diffusion continues until there is no _____.
a.
dynamic equilibrium
c.
concentration gradient
b.
turgor pressure
d.
homeostasis
 

 30. 

Brownian motion is evidence of _____.
a.
polar ions
c.
chemical energy
b.
random motion of molecules
d.
microorganisms
 

 31. 

Folded membranes are an advantage to a cell because _____.
a.
cell processes can be more efficient
b.
the membranes provide a large surface area
c.
the membranes form interconnected compartments
d.
all of these
 

 32. 

Who concluded that all plants are made of living cells?
a.
Virchow
c.
Schwann
b.
Hooke
d.
Schleiden
 

 33. 

All living things are made up of _____.
a.
cells
c.
wastes
b.
cork
d.
cellulose
 

 34. 

If a cell contains a nucleus, it must be a(n) _____.
a.
plant cell
c.
animal cell
b.
eukaryotic cell
d.
prokaryotic cell
 

 35. 

Which of the following might be a result of a disease that causes a thickened plasma membrane?
a.
increased movement of molecules entering the cell
b.
decreased movement of molecules within the cell
c.
decreased movement of molecules entering the cell
d.
increased movement of molecules leaving the cell
 

 36. 

A cell contains the structure shown in Figure 7-7. What other cell structure that is not found in all eukaryotic cells is likely to be found in this cell?
midtermpractice_files/i0410000.jpg
Figure 7-7
a.
mitochondria
c.
cell wall
b.
ribosomes
d.
plasma membrane
 

 37. 

Water moves into a cell placed in a(n) _____ solution.
a.
osmotic
c.
hypotonic
b.
hypertonic
d.
isotonic
 

 38. 

A gene is a segment of DNA that controls the production of _____.
a.
carbohydrates
c.
centromeres
b.
microtubules
d.
proteins
 

 39. 

If the sides of a cell double in length, its surface area becomes _____ times as large.
a.
two
c.
six
b.
four
d.
eight
 

 40. 

Which conditions shown in Figure 8-4 might cause a cell to burst?
midtermpractice_files/i0450000.jpg
Figure 8-4
a.
A
c.
C
b.
B
d.
D
 

 41. 

What cell process is responsible for the effect shown in Figure 8-5?
midtermpractice_files/i0460000.jpg
Figure 8-5
a.
active transport
c.
facilitated diffusion
b.
passive transport
d.
osmosis
 



 
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