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BIOS 242 Midterm Exam Study Guide.
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BIOS 242 Midterm Exam Study Guide.
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BIOS 242 Midterm Exam Study Guide.The Midterm Exam is worth 120 points. It consists of the following.
There are 26 multiple choice questions, worth 3 points each, for a total of 78 points.
There are four matching questions, worth 4 points each, for a total of 16 points.
There are two short answer questions, worth 8 points each, for a total of 16 points.
There is one short answer question worth 10 points.
The exam contains three pages, which can be completed in any order. You may go back and forth
between the pages.
Questions are randomly selected for each student from pools of questions. This means that not everyone
will have the same questions. Even if you do have some of the same questions, they may not be in the
same order. These questions are distributed among the TCOs. The entire exam is worth 120 points.
You will have 2 hours to complete the exam. It will cover all TCOs and assignments up to and including
Week 4.
On the short answer questions, your answers should be succinct, fully address each part of the question,
and demonstrate your knowledge and understanding in a concise but complete answer. Some students
opt to work on the short answer questions first due to their higher point value and length of time needed
to adequately address each question. But this is entirely your choice.
Chapter 1
Know Anoni van Leeuwenhoek’s contribution to microbiology and what organisms he was able to view.
View most microorganisms and record these observations.
Animals, fungi, algae, and single-celled protozoa (eukaryote and prokaryotes)
Bacteria, archaea, fungi, protozoa, algae, and small multicellular animals.
Know the contribution of Paul Ehrlich to microbiology.
, Used chemical to kill microorganisms differentially that destroy pathogens while the body remains
nontoxic.
Used chometherapy to treat syphilis “magic bullet”
Know Koch’s postulates.
Logical steps: to prove the cause of infectious diseases
The cause of fermentation
1. The suspected causative agent must be found in every case of the disease and be absent from
healthy hosts.
2. The agent must be isolated and grown outside the host.
3. When the agent is introduced to a healthy, susceptible host, the host must get the disease.
4. The same agent must be found in the diseased experimental host.
Know the characteristics of viruses (remember they are very, very tiny).
is a minuscule, acellular, infectious agent having one or several pieces of nucleic acid—either DNA or
RNA.
Extracellular before invasion coated capsid with phospholipid as a protection
Intracellular invade host loses the capsid
Dmitri Ivanovsky and Martinus Beijerinck discovered that a certain disease in tobacco plants called
filterable virus
Know characteristics of protozoa
Single-celled eukaryotes
Capable of locomotion: pseudopods, cilia or flagella
Live freely in water and inside aimal host
Reproduce asexually and some sexual
Know common examples of Fungi
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