Calgary BIOL 241 – Movement of cells in both prokaryotes

11 Jun Calgary BIOL 241 – Movement of cells in both prokaryotes

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Movement of cells in both prokaryotes and eukaryotes is accomplished by which of the following structures?

Cilia
Dynein
Pili
Flagella
2. Which of the following is NOT a segment of DNA?

promoter
regulatory gene
structural gene
operator
inducer
3. The main purpose of the origin of replication is

to make it possible to eliminate bacteria that have not been genetically modified.
to provide a location where DNA can be inserted into a plasmid.
None of these answers is correct.
to ensure that each daughter cell receives a copy of the plasmid during cell division.
to keep the plasmid from leaving the nucleoid region.
4. Avery used in order to rule out protein as the transforming principle.

ribonuclease
deoxyribonuclease
precipitate
protein digesting enzymes
lysate
5. Which of the following are produced in the dark reactions?

ATP, NADPH, Oxygen, G3P
ATP, NADPH, Glucose, Oxygen
ADP, NADP+, G3P
ADP, NADP+, G3P, Carbon dioxide
ADP, NADP+, G3P, Oxygen
Cells that are simple and contain no membrane bound organelles are called:

Eukaryotic
Prokaryotic
Protobionts
Plant cells
Animal cells
7. The law of independent assortment states that:

The genes of one organism sort into the gametes independently of the genes of another organism
The alleles of one gene sort into the gametes independently of the alleles of another gene
The gametes of one gene sort into the alleles independently of the gametes of another gene
The alleles of two gene sort into the gametes independently of the alleles of another two gene
8. Some plants, such as elm trees, lack one or more whorl of a flower. What term best describes these flowers?

Incomplete
Complete
Sterile
Hermaphroditic
Fertile
9. How is the N-15 isotope different from the N-14 atom?

N-15 has one less proton than N-14.
N-15 has one extra neutron.
N-15 has one extra electron.
N-15 has one less neutron than N-14.
N-15 has one extra proton.
10. Which of the following effects are mediated by the sympathetic nervous system?

inhibition of the adrenal glands
decreased lung capacity
bladder contraction
increased heart rate
pupil constriction
Which of the following is true of vascular tissues in plants?

Xylem generally transports food from the leaves to the roots and phloem generally transports water from the roots to the leaves.
Xylem generally transports water from the leaves to the roots and phloem generally transports food from the roots to the leaves.
Xylem is made of non-living cells and phloem is made of living cells.
Xylem is made of living cells and phloem is made of non-living cells.
12. A coenzyme is differentiated from the broader class of cofactors because it is

Inorganic
Metal
All of these
Organic
An enzyme
13.

A scientist is studying an animal which can be found with either black or white fur. Which of following COULD be true?

I. Mating an animal with black fur with an animal with white fur only produces animals with white fur.

II. The genotype of the animal with black fur is Bb.

III. Mating the animal with black fur to another animal with black fur produces both black and white animals.

IV. The genotype of the animal with black fur is bb.

II and III
II, III and IV
I, II and III
I, II, III and IV
I and IV
14. What type of cell might have more smooth ER?

Nerve
Skin
All cells have the same amount
Heart
Liver
15. What do all eukaryotes have that prokaryotes do not?

Cell membrane
Nucleus
Cytoskeleton
DNA
Flagella
If the homozygous recessive phenotype for gene B is lethality, what percentage of viable progeny from a monohybrid cross will exhibit the dominant phenotype.

25%
100%
75%
50%
0%
17. When a substance is dissolved in another substance, it is the _.

Dissolving agent
Solute
Solvent
Solution
18. The chaparral biome is characterized by what?

periodic fires
dense evergreen shrubs in the summer and small soft-leaved plants in the winter
poor soil and very little rainfall
dense evergreen shrubs; mild, wet winters; and hot dry summers
most of the biomass is contained within the woody shrubs that dominate the vegetation
19. Which of the following is not true about acid rain?

It causes eutrophication of ponds and lakes.
It can lead to deforestation.
It is caused by the formation of sulfuric acid and nitric acid in the atmosphere when sulfur dioxide and nitrogen oxides react with water.
It can significantly lower the pH of soils and bodies of water with little buffering capacity.
It can cause the death of sensitive aquatic animals.
20. Which of these statements isn’t true?

RNA is stable.
DNA makes RNA, and RNA makes protein.
Uracil is a nitrogenous base found in RNA, whereas DNA contains thymine.
There are three types of RNA, including mRNA, rRNA, and tRNA.
The primary motor cortex of the cerebrum

is located in the parietal lobe.
is located in the temporal lobe.
is mapped from the head region on the lower side of the cortex to the lower part of the body on the upper side of the cortex.
receives touch and pressure information from the body.
22. Triglycerides are synthesized from and _.

glycerol; amino acids
cholesterol; glycerol
fatty acids; glycerol
steroid precursors; starch
23. The following image represents the agarose gel results from the restriction digest of a 6 kb piece of DNA that possesses two restriction sites. Which of the following statements is true?

The piece of DNA that was digested was not 6 kb long.
The 6 kb piece of DNA was completely digested by the restriction enzyme.
It is impossible to determine if the digest was successful.
The restriction digest was incomplete because the smallest DNA band is missing.
Two of the statements are true.
24. External fertilization

is confined to invertebrates.
is typical of terrestrial animals.
occurs in some, but not all, aquatic animals.
can occur when a spermatophore is transferred.
25. After meiosis I, each daughter cell contains:

one chromatid of each chromosome.
four chromatids of each chromosome.
one homolog of each chromosome.
one chromosome of each homolog.
one chromatid of each homolog.
What is the anticodon for the codon AAG?

GGU
UUC
UUG
UUA
CCA
27. Which of these statements is not true about the germ theory of disease?

It states that infectious diseases need to be transferred from one host to another to spread.
Death rates from infection in hospitals rose after its acceptance.
Its acceptance led to changes in the medical and waste disposal industries.
It led to medical professionals using sanitation procedures.
28. Glycolysis happens

In the mitochondrial matrix
In the bloodstream
In the cell membrane
In the cytoplasm of cells
In the inner membrane of the mitochondria
29. ________ is a state in which the phenotypes of two different alleles are simultaneously expressed in a heterozygote, ________ is a state in which the phenotype of the heterozygote is intermediate between those of the homozygotes.

Codominance; complete dominance
Codominance; incomplete dominance
Complete codominance; incomplete codominance
Dominance; codominance
30. Primates can be grouped into two main categories. Which of the following correctly pairs the group with the location?

Old World: Asia only
Old World: Africa and New World: South America only
Old World: Asia, Africa and New World: South America
New World: South America only
Old World: Africa only
Which does NOT describe the inner membrane?

Folds to create cristae
Contains components for cellular respiration
Interior to the outer membrane
Impermeable
Selectively permeable
32. Which of the following steps of the electron transport chain directly drives ADP phosphorylation?

The formation of water molecules.
Proton pumped against the concentration gradient.
Proton flow through ATP synthase along a concentration gradient.
The oxidation of NADH + H+.
The oxidation of FADH2.
33. Which of the following evolutionary agents would produce nonrandom changes in the genetic structure of a population?

Population bottlenecks
Abstinence
Mutation
Natural selection
34. If dissolving carbon dioxide in water to form carbonic acid is the forward reaction, what is the reverse reaction that balances this reaction in chemical equilibrium?

H2CO3 –> H+ + HCO3-
H2CO3 –> CO2 + H2O
2H2CO3 + H2 –> CO2 + 2H2O
CO2 + H2O –> H2CO3
H2CO3 + H2O –> CO2 + 2H2O
35. This type of integral membrane protein moves two substances in the same direction

Symport
Triport
Uniport
Carrier
Antiport
Unlike most other plant hormones, _ inhibits growth and promotes seed dormancy.

Auxins
Cytokinins
Gibberellins
Abscisic acid
Ethylene
37. Which of the following statement(s) about heat shock are true?

None of the statements are true.
Forty-two degrees Celsius is the optimal heat shock temperature.
During transformation, cells are heat shocked from twenty to forty-two degrees Celsius.
Two of the statements are true.
If done properly, a negligible number of untransformed cells are left after heat shock.
38. According to the cladogram shown, which organisms are most closely related?

Belliolum and Drinys
Belliolum and Bubbia
Exosperman and Drinys
Exosperman and Tasmania
Exosperman and Bubbia
39. Which hormone is most responsible for stem elongation, root growth and cell differentiations?

Abscisic acid
Auxins
Gibberellins
Cytokinins
Ethylene
40. On the following diagram, which number indicates the cristae?

3
5
2
4
1
Dialysis most closely mimics the function of which organ?

the kidney
the bladder
the lungs
the liver
the gall bladder
42. Scientists have found fossils that show a sudden appearance of a new organism after decades of no change. Which form of evolutionary change best explains this?

Uniformism
Gradualism
Adaptive radiation
Punctuated equilibrium
Descent with modification
43. Why is it beneficial to use a logarithmic scale to measure pH?

A wider range of values can be measured.
It is easy to calculate.
It has a fun name.
It is not beneficial.
44. Mosquitoes fly towards higher concentrations of carbon dioxide. This is an example of:

Reflex
Circadian rhythm
Kinesis
Taxis
45. Which of the following is not a feature of reverse transcriptase?

It can incorporate DNA into the host cell’s genome.
It is necessary for HIV to replicate its genome.
It is very error-prone.
It causes the high mutation rate of HIV.
It can create double-stranded DNA from RNA.
After observing a population of fish with interesting protective spines, a scientist decides to move two of the fish into a new pond to create a new population of fish to study the ability of the fish to survive a new set of predators. Which of the following evolutionary agents did the scientist introduce?

I. Natural selection

II. Founder effect

III. Mutation

II and III
I, II and III
I and II
II
I and III
47. Some birds give a species-specific vocalization called an ‘alarm call’ when they see a predator, although this call may direct the predator toward them. Other members of their species respond to these calls by taking cover. This would be an example of altruistic behavior that is beneficial to the calling bird if

the birds benefiting are offspring of the bird giving the vocalization.
all birds survive the attack.
the inclusive fitness of the bird giving the vocalization is increased.
the bird giving the vocalization survives the attack.
48. The pressure flow hypothesis can be used to explain:

The movement of sugars from sources to sinks
The movement of sugars from sinks to sources
The movement of water from sources to sinks
The movement of water from sinks to sources
The movement of oxygen from sources to sinks
49. Angiosperms are best described as:

Vascular plants that produce naked seeds
Flowering nonvascular plants
Seedless vascular plants
Flowering vascular plants
Seedless nonvascular plants
50. The process by which a cell becomes a functional, mature cell of a specific type is known as

Differentiation
Signaling
Transcription
Binding
Expression