The purpose of the technical paper is to become more familiar with material properties in a specific application. The technical paper also demonstrates your ability to find useful information doing literature research and to construct a report that is coherent and integrated. The technical paper will build upon course material; its technical difficulty and content should be comparable to Callister/Rethwisch textbook.

Basic format and section headings

Abstract 1- short paragraph

Introduction (information about the subject matter)

Material properties

(You can make comparisons with other materials; explain why these properties are significant?)

Processing Techniques

Applications

Summary (short paragraph)

References

Single spaced with 1-inch margins.

10-12 inch font.

6 pages; content is important.

Include figures and tables. All figures and tables MUST have appropriate captions.

 

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Question 1 (4 points)

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Which of the following enzymes is needed to synthesize the DNA molecule from the viral RNA genome;

Question 1 options:

DNA polymerase

RNA polymerase

Reverse transcriptase

Replicase

Question 2 (4 points)

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Viruses that persist in the cell and cause recurrent disease are considered;

Question 2 options:

Oncogenic

Cytopathic

Latent

Resistant

Question 3 (4 points)

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The capsid is composed of protein subunits called; 

Question 3 options:

Spikes

Protomers

Virions

Capsomers

Question 4 (4 points)

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The envelope of an animal virus is derived from the ………………. Of its host cell

Question 4 options:

Cell wall

Cell membrane

Glycocalyx

Receptors

Question 5 (4 points)

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The nucleic acid of a virus is;

Question 5 options:

DNA only

RNA only

Both DNA and RNA

Either DNA or RNA

Question 6 (4 points)

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Enveloped viruses carry surface receptors that act as recognition sites for subsequent binding and infection of other cells, these surface receptors are called;

Question 6 options:

Buds

Spikes

Fibers

Sheath

Question 7 (4 points)

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Example of virus that alters the genetic set of a host cell and transforms it to cancer cell is;

Question 7 options:

Herpes Simplex Virus

HIV

Papillomavirus

Flu virus

Question 8 (4 points)

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Spikes on enveloped viral surfaces helps in;

Question 8 options:

Replication

Entry

Integration into host genome

Assembly of viral particles

Question 9 (4 points)

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Endotoxins are found in which of the following organisms; 

Question 9 options:

G + bacteria

G – bacteria

Both G + and G – bacteria

Some fungi

Question 10 (4 points)

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Formation of biofilms is mediated by which part of the cell;

Question 10 options:

Flagella

Pili

Fimbriae

Glycocalyx

Question 11 (4 points)

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Bacterial endospores function in

Question 11 options:

reproduction

protein synthesis

survival

storage

Question 12 (4 points)

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Clostridium botulinum is a virus that causes neurotoxic effects (paralysis) in infected individuals.

Question 12 options:TrueFalse

Question 13 (4 points)

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Viroids are short pieces of RNA with no protein coat found to infect only plants.

Question 13 options:TrueFalse

Question 14 (4 points)

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Gram positive bacteria is characterized by a thin layer of peptidoglycan on its outer membrane

Question 14 options:TrueFalse

Question 15 (4 points)

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A plasmid is a critical piece of DNA necessary for bacterial life.

Question 15 options:TrueFalse

Question 16 (4 points)

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Undifferentiated lymphocytes exist in;

Question 16 options:

Thymus gland

Bone marrow

Lymph nodes

The liver 

Question 17 (4 points)

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Lymphocytes differentiate to T and B lymphocytes at

Question 17 options:

Trachea and Brain

Tonsils and blood

Thymus and Bone marrow

Liver and heart

Question 18 (4 points)

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What type of immune cell first detects and processes antigens and foreign molecules; 

Question 18 options:

Antigen presenting cells (APCs)

T lymphocytes

B lymphocytes

None of the above

Question 19 (4 points)

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A molecule that does not initiate an immune response known as

Question 19 options:

Immune misleader

Epitope

Immunoglobulin

Hapten

Question 20 (4 points)

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A molecule that initiates an immune response with an active site for immune cell recognition is known as

Question 20 options:

Immune misleader

Epitope

Immunoglobulin

Hapten

Question 21 (4 points)

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Which of the following immunoglobulin classes is able to cross the placenta

Question 21 options:

IgG

IgA

IgM

IgE

Question 22 (4 points)

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Which of the following immunoglobulin classes is secreted at mucus membranes (salivary glands, intestine, nasal membrane, genitourinary tract…etc)

Question 22 options:

IgG

IgA

IgE

IgM

Question 23 (4 points)

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Which of the following immunoglobulin classes is associated with basophiles and mast cells in blood and mediates allergic reactions

Question 23 options:

IgG

IgA

IgE

IgD

Question 24 (4 points)

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Immunoglobulins are produced by which of the following cells;

Question 24 options:

T lymphocytes 

B lymphocytes 

Antigen presenting cells 

Neutrophils 

Question 25 (4 points)

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Which of the following is an example of innate immune system;

Question 25 options:

B lymphocytes 

White blood cells 

Skin, Saliva, Tears, and stomach acid

The spleen 

 

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Keystone Species, Shrinking Red Knots, and Biomes”

For your primary post, please respond to one of the following three topics with a post of at least 125 words that addresses each point given in the instructions. Also, please reply to at least one fellow student on any topic.

Topic 1 :  Keystone Species. Watch the video entitled “Some animals are more equal than others…” (1)* Then completely describe the concept of a keystone species, giving specific examples from the video.  

Topic 2 [articles]: Shrinking Red Knots. Read two of the following three articles about shrinking Red Knots (2)*, (3)*, (4)*, or research additional information on your own. Then, address the following issues:    

• (a) Explain how the lifecycle of the Red Knot depends on hatchlings emerging at the same time as the insects hatch.  
• (b) What are the long-term ramifications of having a mismatch between the bird hatch and the insect hatch?  
• (c) Of the two articles you read, which of them do you feel was most informative?  Why?

Topic 3 [research]: Biomes. The term “biome” is described in the textbook. For this topic, describe the biome where you grew up (or where you currently live). Identify your location, the biome of the region, and describe the major characteristics of that biome. Add enough detail and commentary from your own experience, so that your answer is 125 words or more. If you’re really ambitious, you could consider looking up the EPA “ecoregion,” which will give additional details about your region.  

 

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Jamar is a 17 year-old high-school junior who has a chance of starting as a linebacker on the football team his senior year. He is 6′ tall and weighs 175 pounds. His coach has recommended that he gain 10 to 15 pounds over the next eight months, but not at the sacrifice of his speed and quickness. Jamar eats home cooked, balanced meals for breakfast and supper. At breakfast, he also drinks a mega protein supplement that contains 56 g of protein. For school, he packs his own lunches, which usually include two tuna or chicken sandwiches with potato chips and milk. He also has a mid-morning and mid-afternoon snack, which typically consists of a protein bar (24 g of protein per bar). He works out in the high school weight room 2 to 3 times per week in the late afternoon. When he arrives home, he studies until the family eats supper, around 7 PM. His final snack of the day occurs just before bedtime, when he consumes another mega protein supplement that contains 56 g of protein.

• Is Jamar getting enough dietary protein to achieve his goals?
• What are the recommended guidelines for protein intake for athlete wanting to gain weight?
• Is it detrimental to consuming diet containing too much protein?

 

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