Facilitated Diffusion Across a Biological Membrane

/in /by

Ansewer some questions

example questions:

1. Facilitated diffusion across a biological membrane requires and moves a substance

its concentration gradient.

a. energy and transport proteins … down; b. energy … down; c. transport proteins … down; d. energy and transport proteins … against; e. transport proteins … against

2. In lab, you use a special balloon that is permeable to water but not sucrose to make an “artificial cell.” The balloon is filled with a solution of 20% sucrose and 80% water and is immersed in a beaker containing a solution of 40% sucrose and 60% water. Which of the following will occur?

a. Water will leave the balloon; b. Water will enter the balloon; c. Sucrose will leave the balloon; d. Sucrose will enter the balloon; e. none of the choices will occur.

3. Some protozoans have special membrane-bound bodies called contractile vacuoles that continually eliminate excess water from the cell. The presence of these membrane-bound bodies tells you that the environment

a. is isotonic to the protozoan; b. is hypotonic to the protozoan; c. is hypertonic to the protozoan; d. contains a higher concentration of solutes than the protozoan; e. none of the choices are correct.

4. Which one of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?

Hand Foot Mouth Disease

/in /by

Unknown disease Scenario: A 35 year old man comes to the free clinic where you are working with a red rash on the palms of his hands and the bottoms of his feet. He says that he has had a fever for a couple of days, and is exhibiting swollen lymph glands, aching muscles and fatigue. When asked about his medical history, he indicated that he had not had any recent illnesses. What is the disease? (I think its scarlet fever) you can double make sure for me.

The DOD analysis (what you think the disease is and why- 1 pg double-spaced

The Invention of Agriculture

/in /by

This is the prompt: “A noted scholar has called agriculture “the worst mistake in the history of the human race.” Do you agree or disagree? Why or why not?” Please make sure this is more than 400 words and make sure you cite any sources that you use. thanks

 

the difference between a population being resistant to a disease and an individual being immune to a disease

/in /by
  1. 5.9 Explain the difference between a population being resistant to a disease and an individual being immune to a disease. How do these two states (population resistance and individual immunity) develop under natural conditions (think about humans not having modern medical practices or about a wild animal population).
  2. 5.10Study infographic 19.8. This is actually a phylogenetic tree in which each bar represents the time that we have evidence for a given species existing on the planet. Denisovans are not illustrated, but we have evidence they existed between 90,000 and 30,000 years ago. Explain why the bars in this illustration are not connected into a phylogenetic tree that looks more like infographic 15.7 (and other you have seen in your textbook).
  3. 5.11This statement from Wikipedia gives a brief description of human populations who have not had contact with modern society. This is a reasonable description of what is known about uncontested “tribes” of humans today.
  4. “In 2013, it was estimated that there were more than 100 uncontested tribes

Outbreak of Cyclosporiasis

/in /by
  • What is the source of the infection?
  • How did the biological characteristics of the pathogen influence your conclusion?
  • What biological characteristics contribute to its threat to the food supply?
  • How can you use the knowledge of its biological characteristics to prevent or control the disease?
  • Propose a strategy to mitigate the disease risk and demonstrate how the strategy addresses the biologic principles of the disease.

angiosperms Survival Mechanisms

/in /by

How did the “game changing” adaptations of the flower, and the fruit in angiosperm plants allow them to out compete every other group of plants in the plant kingdom? Be specific and discuss how each created not only an advantage, but also the requirement for particular animals to coexist with them.

Hint: pollination is important, as well as the dispersal of seeds

 

Cell Structure and Biological Membrane

/in /by

Ansewer some questions

example questions:

1. Facilitated diffusion across a biological membrane requires and moves a substance

its concentration gradient.

a. energy and transport proteins … down; b. energy … down; c. transport proteins … down; d. energy and transport proteins … against; e. transport proteins … against

2. In lab, you use a special balloon that is permeable to water but not sucrose to make an “artificial cell.” The balloon is filled with a solution of 20% sucrose and 80% water and is immersed in a beaker containing a solution of 40% sucrose and 60% water. Which of the following will occur?

a. Water will leave the balloon; b. Water will enter the balloon; c. Sucrose will leave the balloon; d. Sucrose will enter the balloon; e. none of the choices will occur.

Hormones and Their Functions

/in /by

Prepare a written paper of at least 500 words that includes the following: (apa format)

  • Discuss the hormones, and explain how hormones regulate catabolic and anabolic reactions.
  • Describe the parts of the nephron, and explain how they participate in the processes of filtration, reabsorption, and secretion.
  • Mention the hormones that increase or decrease the urine production, and explain the mechanism of action of one of these hormones.
  • Describe the action of the aldosterone in the regulation of sodium and potassium.
  • Explain briefly how the kidneys regulate the acid-base balance.
  • Explain the possible reasons he or she could be experiencing weight gain or weight loss given a metabolic imbalance.

How Traits Are Inherited

/in /by

Student Directions for On-line Module 10 (April 13 – 17, 2020)

Before beginning this module,

  • Read through the entire laboratory investigation in your lab manual (pages 143-151).
  • Review Lecture 10 Inheritance Slides (with Audio).
  • Review Lecture 10 Tutorial (with Audio) to complete Exercises 1 – 3.
  • Follow along with these document (Student Instructions).
  • A modified lab report (Chapter 10 Inheritance Worksheet) is posted to Blackboard; it is different from the physical lab report manual to better align with the online module. You will complete these pages and submit as your lab report.
    • Remember, your answers should be your own. The policy on cheating and academic integrity still applies. Do not copy from your classmates.
    • Some activities and exercises require you to fill in Punnett squares. These are set up as tables that you can type your answers in. You do not need to turn in online, only for self study.
    • If you encounter any difficulties in filling out or submitting pages of your lab report, let your instructor know immediately.
    • MS Office 365 is now available to CPP students for free. Please visit the following page to download. You will have access to Word. https://www.cpp.edu/it/students/cppmsoffice.shtml

Outcomes of Fat On Cardiopulmonary System

/in /by

The topic of the paper should cover some aspect of the broad field of Biology (https://en.wikipedia.org/wiki/Biology).

It must be at least 1000 words in length (NOT including references). For maximum credit, closely follow the

instructions, as described.

Submit the paper on Canvas (Assignments/Grades). Determine the Turnitin score. The Turnitin score should be less

than 20% for maximum points!

Each section of the paper should have a title, similar to below:

Summary (approximately 100 words)

Even though the summary is positioned at the beginning of the paper, it should be the last part of the paper you

complete! All components of the paper (NOT including references) should be evident within these 100 words.

Introduction/background (approximately 300 words)

This part of the paper should contain a short history of the topic you have chosen. This may include the origins of the

name, early observations of the phenomenon, and/or important people who contributed most significantly to what is

known. You could also briefly discuss what interested you about your chosen topic.

State of the science (approximately 300 words)

In this section I expect a description of the important biological aspects of the topic. “How does it work?” Describe the

mechanism of the disease and/or the key aspects of the biology/physiology/ecology being discussed.

Future directions (approximately 300 words)