Discuss the different phases of the cell cycle
Discuss the different phases of the cell cycle. At which part of the cell cycle would you expect that a change in regulation could result in cancer? How is the cancer cell cycle different from a normal cell cycle? Provide a rationale for your answer. Remember to cite any references you use in proper APA format.
Methods of evaluation and control for biological agents
Safety Handbook
As a safety professional, you have been asked to create a handbook explaining the various types of biological agents employees may have contact with in the workplace. In addition, you have been asked to include information regarding the basic exposure mechanisms for biological agents, methods of evaluation and control for biological agents, and methods of sampling for biological agents. You may use the training topics discussed on pages 128-129 of your textbook as a guide. Also, please feel free to use the CSU online library to locate additional information that you feel should be included in your handbook. This assignment should consist of no less than three pages, and any outside sources, including your textbook, should be referenced and cited using proper APA formatting.Â
Course Textbook
Haight, J. M. (Ed.). (2012). Recognition, evaluation, and control of workplace health hazards. Des Plaines, IL: American Society of Safety Engineers.
Concepts of population and race
Short essay assignment
Write an essay that summarizes the difference between the concepts of population and race and identifies the strengths and weaknesses of each. Be sure to discuss these concepts in terms of way they are defined and explained in the on-line notes. Don’t rely common understandings or simple dictionary definitions.
Your essay should be approximately 200-400 words in length.
Describe the characteristics of a sustainable society
Assignment
Use what we have learned about biomimicry
Create a 1 page document- “Working Towards a Sustainable Society” Project:
• Develop a thesis statement- then back that up with ways we can get there.
• Describe the characteristics of a sustainable society.
• List some ways we can help create a more sustainable rural or urban society.
Compare aerobic respiration and anaerobic electron transport
Problem 1 – Alcoholic fermentation
At intervals of 20, 40, and 60 minutes, the tubes are removed. Record the volume of gas produced in each fermentation tube. Each tube is graduated in tenths of a milliliter. (HINT: Look at the amount of gas, not the level of the liquid.)
What gas accumulated in the calibrated portion of the fermentation tube?·
What metabolic pathway is utilized by yeast cells?
Why was amylase added to the third test tube?
Did respiration occur in the beaker containing yeast and starch? Why?
Problem 2 – Carbon dioxide production in germinating seeds
Record the experimental results below.
What color is the phenol red solution in the stock bottle?
What does this indicate about the pH of the phenol red solution in the stock bottle?
What color was the solution in the beaker after exhaling into the solution?
Explain the color change.
Which laboratory setup produced carbon dioxide?
Problem 3 – Measuring metabolic rate
Record the time measurement for the soap film to travel 2 ml of the pipette.
Does this indicate the rodent’s metabolic rate is faster or slower than humans?
The rodents metobolic rate is faster
How does your metabolic rate compare with that of the rodent? Suggest explanations for the similarity or the difference.
Problem 4 – Estimate basal metabolic rate
Record your height, age, weight, and sex. Answers shown are for example – your figures will be different.
Use the Dubois Body Surface Chart to determine the surface area of your body. Follow the directions given above the chart. Record your body surface area.
Estimate your basal metabolic rate for one minute, one hour, and one day. To do this, multiply the heat loss for your age and sex in calories per minute times your body surface area.
Summary Questions:
1. Compare aerobic respiration, anaerobic electron transport, and fermentation using the following table. Refer to your textbook for anaerobic electron transport and lactate fermentation.
2. What human foods are products of fermentation?
3. Explain why the sun is the ultimate source of energy for living organisms.
4. Describe the relationship between photosynthesis and respiration. Include an equation that demonstrates this relationship.
5. In what organelle is pyruvate converted into ATP?
6. Define metabolism.
7. What is the connection between Calories and cellular respiration? Why is human metabolism measured in Calories?
8. Explain how the metabolic rate of an animal can be determined by measuring its rate of oxygen consumption.
9. How does the BMR for a person of your age and sex compare with a rodent’s metabolic rate?
10. What factors other than Basal Metabolic Rate influence the total number of Calories needed in a given amount of time?
Describe each level of protein structure
Amino acids make up proteins, which have primary, secondary,teritiary and quarternary levels of structures. Describe each level of protein structure and the types of bonds associated witheach level.
Exploration of the cardiovascular system
In our exploration of the Cardiovascular System we encounter a number of very difficult and confusing sets of terms. These sets of terms can be very intimidating to patients, preventing them from approaching service providers. This week’s Discussion asks you to explore these terms and expand your ability to “translate” medical terms to more user-friendly language.
1. Select a set of confusing terms for your discussion. Examples include Oxygenated / De-oxygenated, Bicuspid / Tricuspid, Bradycardia / Tachycardia, and more. Please note that you are NOT tied to these examples. Select terms based on your studies.
2. Describe your system for keeping the terms clear. Be creative and avoid duplicating your colleagues’ topic choices.
3. Provide details on how you’d share this information with patients / patient families who are not fluent in medical terminology.
Relationship between plant community and animal community
Explain the potential relationship between the physical structure of a plant community and the diversity of an animal community in the same habitat and the reasons for this relationship. Give a realhypothetical example to support your answer.
Differences between the terms nutrition and health
What are the similarities and differences between the terms nutrition and health?
Show at least one positive and one negative effect that diet and nutrition can have on digestion and absorption.
Give an example of a disorder of digestion and absorption that can adversely affect nutritional status and health.
Describe receptive fields in the retina
Retinal vision A. Discuss the molecular mechanisms on how a photoreceptor relays a signal to the bipolar cells B. Explain receptive fields in the retina and how they are relayed to the brain. C. What is dark and light adaptation? Central vision A. Describe the circuitry that allows us to have binocular vision. Make sure you include the proper neuronal layer in the striate cortex. B. Explain the organization of ocular dominance columns and how scientists learned about them. C. Explain the differences among the parvocellular, magnocellular, and koniocellular pathways.