MCB 100 EXAM 1 QUESTIONS & ANSWERS
Passage: John is having a really bad day. The temperature was very pleasant last night,
so he slept with his window open to enjoy the fresh air. He had a headache when he got
up this morning because of his chronic sinus problems, worsened of late by a high
pollen count. That pounding headache sure didn't help his concentration at school this
morning when he administered a lab practical exam to his A&P students. At one point,
he almost thought they had worked out some new way to cheat—there seemed to be a
symphony of sneezes and sniffles during the exam. Allergies or the latest cold that
everyone is spreading back and forth? John didn't worry about it—his sinuses were
already blocked so how much worse could it get? Finally, the exam was over, and he
thought maybe some food would make him feel better.The school cafeteria was closed
by the time he headed off for a late lunch, so he headed to the local deli and ordered a -
Answers -Sinus congestion caused by his allergies.
Based on the reading passage, which of the following is the least likely cause of John's
vomiting? - Answers -His headache
What is the role of lenses in microscopy? - Answers -Lenses focus either light or
electrons to create a magnified image of a specimen.
You will be expected to do reading assignments from your textbook, and then be able to
analyze what you read to make sense of it and draw conclusions. The passage that you
just read is merely a sample. Based on that written passage, what would you predict will
happen if this person receives type B blood? - Answers -Her blood will agglutinate
because her anti-B antibodies will bind to the B antigens on the donor blood.
Based on the information from the reading passage, which of the following types of
blood could this person receive without having any reaction? - Answers -Type A
What is spontaneous generation? - Answers -the theory that living organisms may arise
from nonliving matter
How did Francesco Redi attempt to disprove the theory of spontaneous generation? -
Answers -He performed a series of experiments involving decaying meat and maggots.
Which scientist definitively ended the debate over spontaneous generation? - Answers
-Louis Pasteur
Which of the following steps is NOT included in the scientific method? - Answers -
Repeat experiment until desired result is achieved.
When conducting an experiment, it is generally necessary to include __________
groups that are treated exactly the same as treatment groups except for the condition
being tested. - Answers -control
, If the results from an experiment contradict the hypothesis, what should be a scientist's
next step? - Answers -The scientist should reject or modify the hypothesis.
Some critics of Spallanzani's experiments thought that the reason sealed flasks were
unable to spontaneously generate microorganisms was that there was not enough air
present to support life. How did Louis Pasteur respond to this claim? - Answers -He
modified the experiment to include air as treatment.
What is a hypothesis? - Answers -A hypothesis is a possible answer to a scientific
question.
The second step in the Gram staining procedure involves flooding the slide for one
minute with - Answers -iodine.
Gram-negative bacteria appear pink after Gram staining because they have - Answers
-a thin layer of peptidoglycan.
The counterstain in the Gram staining procedure is - Answers -safranin.
The third step in the Gram-staining procedure - Answers -is decolorizing.
Staining is an important way to improve which of the following aspects of microscopy? -
Answers -resolution and contrast
What is the correct order for the application of Koch's postulates?I. Inoculate suspect
agent into test subject and observe that subject develops disease of interest.II. Isolate
and culture suspect agent in the laboratory.III. Find suspect agent is every case of
disease of interest but not in healthy hosts.IV. Recover and isolate suspect agent from
test subject. - Answers -III, II, I, IV
Put the following taxonomic groups in order, from broadest group to most specific
group: a. phylum b. genus c. family d. order - Answers -a, d, c, b
Antoni van Leeuwenhoek was the first person in history to - Answers -view
microorganisms and record these observations.
An explanation of observations and data supported by the experimental results of many
scientists for many years is - Answers -a theory.
In metabolism, energy that is not used - Answers -is given off as heat.
The reactions involved in producing larger compounds from smaller compounds is
called - Answers -anabolism.
Passage: John is having a really bad day. The temperature was very pleasant last night,
so he slept with his window open to enjoy the fresh air. He had a headache when he got
up this morning because of his chronic sinus problems, worsened of late by a high
pollen count. That pounding headache sure didn't help his concentration at school this
morning when he administered a lab practical exam to his A&P students. At one point,
he almost thought they had worked out some new way to cheat—there seemed to be a
symphony of sneezes and sniffles during the exam. Allergies or the latest cold that
everyone is spreading back and forth? John didn't worry about it—his sinuses were
already blocked so how much worse could it get? Finally, the exam was over, and he
thought maybe some food would make him feel better.The school cafeteria was closed
by the time he headed off for a late lunch, so he headed to the local deli and ordered a -
Answers -Sinus congestion caused by his allergies.
Based on the reading passage, which of the following is the least likely cause of John's
vomiting? - Answers -His headache
What is the role of lenses in microscopy? - Answers -Lenses focus either light or
electrons to create a magnified image of a specimen.
You will be expected to do reading assignments from your textbook, and then be able to
analyze what you read to make sense of it and draw conclusions. The passage that you
just read is merely a sample. Based on that written passage, what would you predict will
happen if this person receives type B blood? - Answers -Her blood will agglutinate
because her anti-B antibodies will bind to the B antigens on the donor blood.
Based on the information from the reading passage, which of the following types of
blood could this person receive without having any reaction? - Answers -Type A
What is spontaneous generation? - Answers -the theory that living organisms may arise
from nonliving matter
How did Francesco Redi attempt to disprove the theory of spontaneous generation? -
Answers -He performed a series of experiments involving decaying meat and maggots.
Which scientist definitively ended the debate over spontaneous generation? - Answers
-Louis Pasteur
Which of the following steps is NOT included in the scientific method? - Answers -
Repeat experiment until desired result is achieved.
When conducting an experiment, it is generally necessary to include __________
groups that are treated exactly the same as treatment groups except for the condition
being tested. - Answers -control
, If the results from an experiment contradict the hypothesis, what should be a scientist's
next step? - Answers -The scientist should reject or modify the hypothesis.
Some critics of Spallanzani's experiments thought that the reason sealed flasks were
unable to spontaneously generate microorganisms was that there was not enough air
present to support life. How did Louis Pasteur respond to this claim? - Answers -He
modified the experiment to include air as treatment.
What is a hypothesis? - Answers -A hypothesis is a possible answer to a scientific
question.
The second step in the Gram staining procedure involves flooding the slide for one
minute with - Answers -iodine.
Gram-negative bacteria appear pink after Gram staining because they have - Answers
-a thin layer of peptidoglycan.
The counterstain in the Gram staining procedure is - Answers -safranin.
The third step in the Gram-staining procedure - Answers -is decolorizing.
Staining is an important way to improve which of the following aspects of microscopy? -
Answers -resolution and contrast
What is the correct order for the application of Koch's postulates?I. Inoculate suspect
agent into test subject and observe that subject develops disease of interest.II. Isolate
and culture suspect agent in the laboratory.III. Find suspect agent is every case of
disease of interest but not in healthy hosts.IV. Recover and isolate suspect agent from
test subject. - Answers -III, II, I, IV
Put the following taxonomic groups in order, from broadest group to most specific
group: a. phylum b. genus c. family d. order - Answers -a, d, c, b
Antoni van Leeuwenhoek was the first person in history to - Answers -view
microorganisms and record these observations.
An explanation of observations and data supported by the experimental results of many
scientists for many years is - Answers -a theory.
In metabolism, energy that is not used - Answers -is given off as heat.
The reactions involved in producing larger compounds from smaller compounds is
called - Answers -anabolism.
