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BIO 101
TEST 3
134
Biology
Undergraduate 1
11/07/2011

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Term
A disease outbreak in an area where the disease is not traditionally found is called
Definition
an epidemic
Term
Europeans were assisted in their conquest of the Americas by
Definition
the introduction of diseases to native populations
Term
An in depth analyses of one patient is called
Definition
a case study
Term
A cohort study is composed of
Definition
a group of patients with a common element who are disease free
Term
A cohort control study is which step in the scientific method?
Definition
experiment
Term
The United Nations works to vaccinate children in developing nations through
Definition
The World Health Organization
Term
The major difference between prokaryotes and eukaryotes is
Definition
eukaryotes have organelles and a nucleus and prokaryotes do not.
Term
Bacteria are classified by
Definition
shape
staining
genetics
Term
Which of the following is not a description of bacterial shape?
Definition
chains of twisted rods
Term
Gram positive bacteria appear
Definition
purple
Term
The 16S RNA is used to
Definition
identify bacteria
Term
What characteristic is used when classifying a bacterium as bacilli or spirochete?
Definition
Shape
Term
What is indicated by the fact that you are covered inside and out with bacteria?
Definition
Most bacteria are harmless and some are even helpful
Term
Which of the following is NOT a mode of action of antibiotics?
Definition
Formation of a cell wall
Term
Which of the following is NOT a way bacteria become resistant to antibiotics?
Definition
Membrane changes so the antibiotic cannot enter
B) Receptor in membrane changes so the antibiotic cannot attach
C) Bacterium produces enzymes that destroy the antibiotic
D) These are all ways of becoming resistant
Term
Which of the following is an example of a virus?
Definition
influenza
Term
This virus, which causes flu-like symptoms, can attack the nervous system.
Definition
polio
Term
WHO has plans to eradicate which virus using vaccination programs.
Definition
polio and measles
Term
What is AIDS?
Definition
A series of symptoms associated with a long-term infection by a virus
Term
Which of the following is NOT a way to contract HIV?
Definition
Shaking hands with an infected person
Term
What is the only virus thus far successfully eradicated from the human population?
Definition
smallpox
Term
Why has it been difficult to make a vaccine against HIV?
Definition
The HIV virus mutates too quickly for a vaccine to be effective.
Term
Mad cow disease is caused by
Definition
prions
Term
Which of the following is a pathogen?
Definition
Prion
Fungus
Protist
Term
Epidemiology rarely has to contend with error when studying disease.
Definition
false
Term
One of the best precautions against infectious disease is hand washing.
Definition
true
Term
Most bacteria on earth cause human disease.
Definition
false
Term
Prokaryotic cells are larger than eukaryotic cells.
Definition
false
Term
Antibiotics are not as effective at treating bacterial disease as they once were because some strains of bacteria have evolved to resist the action antibiotics.
Definition
true
Term
Factory farming has contributed to antibiotic resistance in bacteria.
Definition
true
Term
The plague has been completely eradicated in America thanks to the efforts of WHO.
Definition
false
Term
Viruses are not considered to be alive.
Definition
false
Term
Because there is no cure for AIDS, prevention is the key to controlling its spread.
Definition
true
Term
Amoebic dysentery is caused by a prion.
Definition
false
Term
cancer can be defined by
Definition
cells that divide uncontrollably.
Term
When the normal regulation of cell growth fails the result is
Definition
abnormal nuclei and damaged DNA.
cell immortality.
undifferentiated cells.
Term
Which is not a characteristic of cancer?
Definition
programmed cell death
Term
Genes that promote cell growth are called
Definition
proto-oncogenes
Term
In a cell with damaged DNA, the action of which protein will halt cell division
Definition
P-53
Term
The difference between a proto-oncogene and an oncogene is
Definition
mutation
Term
The presence of telomerase in a cell leads to
Definition
cell imortality
Term
A tumor is considered malignant
Definition
if is invasive and spreads
Term
The migration of cancer from the original tumor is called
Definition
metastasis
Term
Oncogenes are found in
Definition
cancer cells
Term
Which factor has NOT been linked to increased cancer risk?
Definition
cholesterol
Term
Which gene is not a tumor-suppressor?
Definition
A) BRCA1/BRCA2
B) TP53
C) RB
D) All are tumor-suppressor genes
Term
The majority of cancers caused by an environmental factor are due to
Definition
radiation
Term
The majority of skin cancers are caused by
Definition
ionizing radiation
Term
The most likely way to be exposed to radiation is
Definition
exposure to diagnostic X-rays
Term
The most common cause of cervical cancer is
Definition
viral infection
Term
How might viruses initiate cancer?
Definition
Depressing the immune system
Altering host cell DNA and cell function.
Term
Which diet(s) is(are) linked to higher cancer rates?
Definition
A) High alcohol consumption
B) High fat content
C) Low consumption of fruit and vegetables
Term
Free radicals
Definition
damage DNA
Term
How is cancer diagnosed?
Definition
A) screening tests imaging
B) tumor enzyme test
C) imaging
Term
The first and most important step in cancer control is
Definition
self tests
Term
The best imaging technique for detecting tumors in connective tissue, the brain or spinal cord is
Definition
MRI
Term
Prostate-specific antigen can be diagnosed by
Definition
tumor-enzyme test
Term
Which of the following techniques of cancer treatment is not considered to be a "sledgehammer"approach?
Definition
cutting off the blood supply to the tummor
Term
Why is radiation effective in treating cancer cells?
Definition
Radiation is deadly to rapidly dividing cells and cancer cells divide much more frequently than non-cancerous cells.
Term
Healthy cells contain many proto-oncognes.
Definition
true
Term
All malignant tumors start out as a single mutated cancer cell.
Definition
true
Term
A distinguishing feature of cancer cells is their perfect symmetry
Definition
false
Term
Telomerase is an enzyme present in healthy cells that maintains the tips of chromosomes
Definition
false
Term
The easiest way to avoid most cancers caused by an environmental factor is to avoid smoking any organic compound.
Definition
true
Term
If you carry either the BRCA1 or BRCA2 gene you will develop breast cancer.
Definition
false
Term
The RB gene is an oncogene.
Definition
false
Term
The environmental carcinogens known as initiators cause cancerous changes in cellular functioning
Definition
true
Term
Genetic tests can detect the presence of cancer.
Definition
false
Term
Eating fresh fruits, vegetables, and whole grains while avoiding trans and saturated fats will lower your cancer risk.
Definition
true
Term
New cancer treatments target cancer cells and are less damaging to healthy cells.
Definition
true
Term
Which of the following is a not a part of the cardiovascular system?
Definition
lungs
Term
What is the name of the membrane that surrounds the heart?
Definition
pericardium
Term
Which of the following initiates the heartbeat?
Definition
SA node
Term
How does Starling's law relate to the heart?
Definition
The heart beats with more force when there is an increase in blood volume returning to the heart
Term
What is the name of the blood vessels that take blood away from the heart?
Definition
arteries
Term
What is the purpose of precapillary sphincters?
Definition
They change the amount of blood flowing into capillary beds
Term
Which of the following is not a mechanism for assisting the veins in returning blood to the heart?
Definition
Valves
Skeletal muscle contractions
Gravity
Term
Which type of circulation extends from the right side of the heart through the lungs and back to the left atrium?
Definition
pulmonary
Term
Which is the most specific type of circulation that sends oxygen-rich blood to the tissues of the heart?
Definition
coronary
Term
Which type of circulation sends nutrient rich blood from the gastrointestinal tract to the liver?
Definition
portal
Term
In what way is the fetal circulation different?
Definition
The umbilical arteries bring oxygenated blood since the lungs of the fetus are not functioning
Term
Hypertension is
Definition
high blood pressure
Term
A weak spot in a blood vessel that could potentially burst is known as a(n)
Definition
aneurysm
Term
What condition usually develops as a result of congestive heart failure?
Definition
pulmonary edema
Term
Which of the following is not a formed element of the blood?
Definition
plasma
Term
Which of the following white blood cells is the largest?
Definition
monocyte
Term
Which white blood cell attacks parasitic worms?
Definition
eosinophil
Term
What conditions exist during exercise that prompt hemoglobin to drop off its oxygen to the working muscle cells?
Definition
low PH and high temperature
Term
The threads of a blood clot are formed by
Definition
fibrin prothrombin activator
Term
Which blood disorder is a cancer of the bone marrow?
Definition
leukemia mononucleosis
Term
A lack of vitamin B12 can cause
Definition
anemia mononucleosis
Term
The ventricles are thicker than the atria because they must pump blood farther.
Definition
true
Term
The mitral valve is most prone to prolapse, a condition that is more common in women.
Definition
true
Term
The tricuspid valve is located between the left ventricle and the aorta
Definition
false
Term
Blood slows down in arterioles due to the large cross-sectional area.
Definition
true
Term
The coronary circulation is actually part of the systemic circulation.
Definition
true
Term
Dietary restrictions, moderate exercise, reducing smoking and drinking, and medications can all control hypertension.
Definition
false
Term
Congestive heart failure is a sudden onset of a weak heart, resulting in rapid deterioration.
Definition
false
Term
Hypertension is a risk factor for cardiovascular disease.
Definition
true
Term
A clot that blocks flow to the brain can lead to stroke.
Definition
true
Term
Hemoglobin is a protein in white blood cells that destroys pathogens like bacteria.
Definition
false
Term
Being type AB means you have both the A and B antigens on your red blood cells.
Definition
true
Term
A menstruating woman could become anemic due to too much blood loss
Definition
true
Term
Blood leaves the right side of the heart and enters the ____________________ which takes it to the lungs.
Definition
pulmonary trunk
Term
__________________, the first number listed in blood pressure readings, measures the force of the left ventricle contraction.
Definition
Systolic pressure
Term
A(n) __________________ is a graphic representation of the electrical changes during a heartbeat.
Definition
electrocardiogram
Term
If a person sits for a long time, blood may pool in the lower extremities, causing ________ .
Definition
edema
Term
The systemic circulation begins with the ____ side of the heart.
Definition
left
Term
Death of heart muscle due to lack of oxygen is known as ___________________.
Definition
myocardial infarction
Term
Unsightly and sometimes painful distensions of venous walls is a condition known as _________________.
Definition
varicose veins
Term
The function of the respiratory system is
Definition
A) gas exchange
B) maintenance of blood pH
C) sound production
Term
Which of the following belongs to the upper respiratory tract?
Definition
nasal cavity
Term
The nostrils are also known as
Definition
external nales
Term
Which structure is part of the conducting zone of the respiratory system?
Definition
bronchi
Term
The epithelium of the upper respiratory tract is
Definition
pseudostratified ciliated columnar
Term
Which of the following is part of the "Adam's apple"?
Definition
thyroid cartlidge
Term
The fleshy tab of tissue that hangs down the back of the throat is
Definition
uvula
Term
The nasal cavity is divided into right and left sides by the
Definition
nasal septum
Term
Why does a boy's voice change when he goes through puberty?
Definition
Testosterone makes the vocal cords thicker and longer
Term
Which is not a function of the nasal cavity?
Definition
cool the incoming air
Term
Which is the next place air goes after the trachea?
Definition
bronchi
Term
What is the purpose of cilia in the respiratory tract?
Definition
Move mucus and debris caught in mucus out of the respiratory tract
Term
The exchange of gases occurs in the
Definition
alveoli
Term
The serous membrane covering the lungs is
Definition
pleura
Term
Pleurisy is painful because of
Definition
inflammation of the membrane around the lungs
Term
According to Boyle's law
Definition
pressure increases with decreased volume
Term
Chemoreceptors in the carotid artery and aorta detect
Definition
levels of oxygen and carbon dioxide
Term
Vital capacity is the amount of air you breathe
Definition
you can move in and out
Term
Which of the following is the exchange of gases between the blood and the cells of the body?
Definition
internal respiration
Term
Most oxygen in the blood is transported
Definition
as oxyhemoglobin
Term
Most carbon dioxide in the blood is transported
Definition
as bicarbonate
Term
The pH of the blood is influenced by the concentration of
Definition
carbon dioxide in the blood
Term
Which disorder is characterized by the destruction of alveolar walls?
Definition
emphysema
Term
What is happening during an asthma attack?
Definition
The smooth muscle of the bronchi contract
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