Discuss the biological basis of energy homeostasis,

BIOLOGY OF ENERGY HOMEOSTASIS

Write a five page (body; double spaced) review of the topic Metabolic Syndromefrom a
public health biology perspective. In your review, include the
following:

  • Discuss the biological basis of energy homeostasis, including an introduction to your chosen focus area;
  • Discuss
    some of the recent (within five years) and current research on the
    focus area you chose, including study aim, methods, and results of the
    studies you discuss;
  • Explain
    the value and application of the above research findings to public
    health, citing the studies as needed, and providing some examples of how
    this information is or can be used in public health policy, programs,
    and practice.
 

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What is the name for the type of organisms that can use Photosynthesis to produce glucose?

BIOLOGY

Part 2: After completing the table you will have a basic understanding of these two complementary metabolic processes. Using what you have learned, and additional reference information, answer the following questions.
1.What is the name for the type of organisms that can use Photosynthesis to produce glucose? Provide specific examples.
2.What is the name for the type of organisms can use Aerobic Cellular Respiration to break down glucose to produce ATP? Provide specific examples.
3.If oxygen is lacking, how might cells meet their energy needs through fermentation? Explain and give some examples of cells that can do this.
4.Both photosynthesis and aerobic cellular respiration are examples of complex metabolic pathways, consisting of many linked reactions. Briefly, explain the role of enzymes in catalyzing chemical reactions and in metabolic pathways.
Be sure to list and cite in APA, all references used to prepare both parts of this IP assignment.
 

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Compare and contrast the lytic cycle of infection of a DNA virus and an RNA virus

Organism
Characteristic A B C D E
Morphology Rod Rod Coccus Coccus Rod
Motile Yes Yes No No Yes
Gram Reaction – – + – –
Glucose Utilization Oxid. Ferm. Ferm. Ferm. None
% G+C 58-70 50-51 30-40 47-52 58-70
Cytochrome oxidase Present Absent Absent Present Present

a. Which organisms are most closely related? On what did you base your answer?
b. DNA from which organisms will probably hybridize?

3. One of the advantages of some newly developed rapid identification tools is that pure cultures aren’t needed. Why is a pure culture necessary for biochemical tests such as the Enterotube, but not for DNA probes?

4) Discuss the use of Bergey’s Manual as a tool of (1) classification and (2) identification.

5) Provide a reason to classify bacteria.

6) Bacteroides and Escherichia are both gram-negative rods found in the large intestine. Why are they in different phyla?

7) Provide an explanation for the complex life cycles exhibited by parasitic helminths. Cite specific examples in your discussion.

8) Explain how the presence of algae can indicate either pollution or productivity of a body of water.

9) Bacteriophages are used as vectors in genetic engineering to insert new genes into bacteria. Describe the process that makes this genetic recombination possible.

10) Compare and contrast the lytic cycle of infection of a DNA virus and an RNA virus.

11) Why was it previously believed that only DNA viruses could cause cancer? How can RNA viruses cause cancer?

12) You are growing Bacillus subtilis in nine 16,000-liter fermenters to produce enzymes…

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What biotechnology application did you choose?

BIOLOGY UNIT 3 DB

Assignment Type: Discussion Board Deliverable Length: 3-4 paragraphs
Points Possible: 70 Due Date: 5/18/2008 11:59:59 PM CTBiotechnology allows us to use living organisms or their processes for human needs or purposes. This current topic includes such examples as cloning, stem cells (adult, umbilical cord, and embryonic), DNA fingerprinting, biological warfare, bioremediation, genetically modified organisms, vaccines, and transgenic plants and animals to name a few.

Research how biotechnology is used today and answer the following questions:

1. What biotechnology application did you choose?

2. Briefly describe this process or application.

3. What benefits are derived from this?

4. Are there any concerns or negative impacts associated with this use of biotechnology? Why or why not?

 

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FOUR THEORIES UNIFYING BIOLOGY AS A SCIENCE

FOUR THEORIES UNIFYING BIOLOGY AS A SCIENCE

Topic: Core Ideas of BiologyConstruct a 2 page essay paper identifying, expanding on, and providing examples for the four theories that unify biology as a science.

Completely and professionally address the topic.
Must be a minimum of 2 pages of text (excluding title page and literature cited page).

Include title page with your name, assignment title, course number, course title, and date of submittal.

Include literature cited page (all literature cited must be in APA format).

Text must be double spaced.

Text font must be the following (Size 12 pt. Times New Roman).

Must have 1 inch margins and 1 inch header and footer.

 

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Explain a penicillin reaction, what is happening, how is the reaction triggered, and what is the allergen?

4. A new bacterium has been secretly engineered and released by aerosol (spray) into the populace of a large metropolitan city as part of a terrorist scheme. This bacterium produces a lethal neurotoxin; several horrific enzymes; grows rapidly; and has a capsule. After several days, no unusual illnesses have been reported and the terrorists’ scheme failed. What factors could the bioengineers have overlooked? EXPLAIN your answer.
5. Differentiate between humoral and cell mediated responses, and develop an example that would involve the activation of both systems, and explain how the two systems would work together, (or not!).
6. How can those microbes cause disease? What are mechanisms of pathogenicity? How do we study and research disease?
7. Explain a penicillin reaction, what is happening, how is the reaction triggered, and what is the allergen?
8. List and briefly discuss the obstacles that must be overcome to produce and AIDS vaccine. (The…

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Why do you think specificity; heterogeneity (diversity), memory, and self-vs. Oneself recognition is vital to the immune system?

MICROBIOLOGY

Unit 6
1. Why do you think specificity; heterogeneity (diversity), memory, and self-vs. Oneself recognition is vital to the immune system?
2. Define phagocytosis. How do some bacteria avoid or survive the action of phagocytes? How does the phagocyte arrive at the site where it is needed? What happens to a phagocyte after the majority of microorganisms and damaged tissue have been eliminated?
3.

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Unit 6
1. Why do you think specificity; heterogeneity (diversity), memory, and self-vs. Oneself recognition is vital to the immune system?
2. Define phagocytosis. How do some bacteria avoid or survive the action of phagocytes? How does the phagocyte arrive at the site where it is needed? What happens to a phagocyte after the majority of microorganisms and damaged tissue have been eliminated?
3. The “clichĂŠ” “an ounce of prevention is worth a pound of cure” means that preventing a disease is less costly economically and to the health of the host than treating the disease once it has occurred. Draw a flow chart (or list) showing the connections between reservoirs of infection; modes of transmission; host susceptibility factors, and portals of entry. These are the steps in the disease cycle that precede the infection of the host. Are there ways of preventing host infection by halting the pathogen at these points? Discuss each step, and what measures can be used to eliminate the treat of potential disease at each point.
4

 

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Discuss the connection between neurons and neurotransmitters

BIOLOGY

Describe neurotransmitters in terms of what they are, their general function within the body, and their impact on behavior.2. Discuss the connection between neurons and neurotransmitters.

3. Pick two neurotransmitters and discuss their general functions in our bodies. Also discuss each neurotransmitter’s connection with disease or disorders. Does a neurotransmitter problem cause the disease, or does the disease cause a neurotransmitter problem? In other words, what might be the relationship between transmitter function or effectiveness and a particular disease or disorder?

In your own word please!

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Name a type of virus that causes cancer and explain how it works

THE BIOLOGY OF CANCER
Short Answer: Please be concise with your answers and as specific as possible.
1. Genes involved in cell cycle activity/survival are mutated to contribute to the development of cancer. Name the two categories of genes related to cell division that are mutated and how mutations affect their function and lead to cancer.
2. How can active transport activity by cells contribute to cancer?
3. How is it that changes in membrane fluidity can lead to tumor development?
4.What type of standard treatment should be used for metastatic adenocarcinoma? Explain your response.
5. What type of secondary/alternative treatment strategy should be used for treatment against hemangioma? Explain your response.
6. Assume that two individuals (A and B) develop the same type of cancer. Both individuals are given the best treatment found to be effective against cancer. Individual A responds well to treatment, while individual B does not. Using what you have learned, provide a specific type of cancer and an explanation for why there was a difference in response to treatment.
7. Name a type of virus that causes cancer and explain how it works. Include the type of cancer it causes in your response.
8. Genetic instability is the accumulation of DNA mutations, especially in cancer cells. How is genetic instability prevented in healthy cells?
9. Why does it make sense that the majority of cancers are non-hereditary?
10. What genetic profiling method do you think is best in identifying genes related to cancer? Include an explanation of why this method is better than other methods.
11. Which cancer screening method is best? Explain the type of cancer(s) it detects and why it is better than other methods.

 

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