Step 1: Read about cellular conception and prenatal development in your textbook
Discuss your stance on the following topic:
At what point between conception and birth do you consider an organism a human being?
Include support for your stance.
Discuss whether or not evidentiary support from others could persuade you to change your position on this issue? Why or Why not?
Explain how you may discuss this in a clinical setting with a patient who has opposing views.
Address how professional language can impact your role as a Nurse when discussing controversial topics.
Step 2: Read and Respond to two of your peers
Use your personal experience, if it’s relevant, to support or debate other students’ posts. If differences of opinion occur, debate the issues professionally and provide examples to support opinions
Assignment: Mitosis and Meiosis: The Process of Cellular Reproduction
Overview:
In this assignment you will be comparing mitosis and meiosis. These two processes are how parent cells produce daughter cells. However, they have two entirely different goals. What are the key steps of these two types of cellular reproduction? How does the behavior of chromosomes during meiosis generate variation and explain Mendel’s law of independent assortment?
Instructions:
You will be creating this assignment inPadlet.
•Go to:https://padlet.com/
o Click “Sign up for free” if you do not already have an account.
o Sign up and then log in.
o Once in your account, click “Make a Padlet”.
o Then select “Shelf” template and make two columns:
One column will be “Mitosis”
One column will be “Meiosis”
o From there you can select backgrounds images to insert and text.
o When you are finished with your work, click “Share” and copy the link to your clipboard.
o Paste the link in the text box in the assignment in Blackboard.
•Your Padlet will address the following:
o What are the key steps of these two types of cellular reproduction?
Include key differences that lead to 2 clone daughter cells with a full set of identical DNA or 4 daughter cells that are genetically unique but have only half the DNA needed.
o How does the behavior of chromosomes during meiosis generate variation and explain Mendel’s law of independent assortment?
Requirements:
•Your Padlet will be fun and informative.
•You will cite all images used.
•You will use intext citations and references in APA format. You may use your textbook and other internet resources
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Title: Understanding the Scientific Method: Photosynthesis and Cellular Respiration Instructions: Based on the virtual experiment, you will answer some questions and write a 1-page lab report using the scientific method. When your lab report is complete, submit this document to your instructor in your assignment box. Using what you learned on the lab animation, answer the following questions:• Define a hypothesis that is suggested by the data that are collected in the lab.• Complete a lab report using the scientific method.• What effect does the intensity of light have on the rate of photosynthesis (measured as the number of oxygen bubbles)?• Is it possible to examine the relationship between photosynthesis and cellular respiration under controlled experimental conditions? Explain your answer in detail. Part 1: Using the lab animation, fill in the following data tables to help you generate your hypothesis, outcomes, and analysis: Table 1: Rate of Photosynthesis Measured by the Number of Oxygen Bubbles Light Bulb Trial 1 Trial 2 Trial 3 Average0 watts 25 watts 50 watts 100 watts Part 2: Write a 1-page lab report using the following sections of the scientific method: • Purpose o State the purpose of the lab. • Introduction o This is an investigation of what is currently known about the question that is being asked. Use background information from credible references to write a short summary about the concepts in the lab. List and cite references in APA style. • Hypothesis or Predicted Outcome o A hypothesis is an educated guess. Based on what you have learned and written about in the introduction, state what you expect to be the results of the lab procedures. • Methods o Summarize the procedures that you used in the lab. The methods section should also state clearly how data (numbers) were collected during the lab; this will be reported in the results or outcome section. • Results or Outcome o In this section, provide any results or data that were generated while doing the lab procedure.• Discussion and Analysis o In this section, state clearly whether you obtained the expected results and if the outcome was as expected.o Note: You can use the lab data to help you discuss the results and what you learned. Provide references in APA format. This includes a reference list and in-text citations for references used in the introduction section. Give your paper a title and number, and identify each section as specified above. Although the hypothesis will be a 1-sentence answer, the other sections will need to be paragraphs to adequately explain your experiment.
Photosynthesis is defined as the process through which plants as well as other photosynthetic organisms absorb light and transforms the light into forms of chemical energy such as carbohydrates that can be stored in the plant. The transformation of light into carbohydrates is facilitated by chlorophyll found in the leaves of the plant. Cellular respiration on the other hand is the process through which plant cells convert stored glucose into energy. This experiment seeks to establish a correlation between photosynthesis and cellular respiration.
Hypothesis
The level of cellular respiration largely depends on the level of photosynthesis of the plant.
Procedure
Three photosynthetic plants were placed in three different in three deferent settings with different light intensities. One was placed in total darkness, th…..
1. Describe the cellular and sub-cellular process of excitation- contraction coupling, and the role of calcium in cardiac muscle cell. 2. Write and essay on short term and long term regulation of blood pressure. Add a note on the renin-angiotensin system used as a drug Targeting system to control high blood pressure. For calcium in cardiac muscle cell..
All the people owe much to the feeling in their lives owing to the beating of their hearts. Schlüter (2016) points out that the heartbeats are products of cellular mechanisms of excitation-contraction (EC) coupling. The excitation-contraction coupling has since become a critical component of the pathology and cardiac physiology. Consequently, it has led to a greater interest in the understanding of the sub-cellular, cellular, and even the molecular pathways of the cellular excitation process.
The Excitation-Contraction (EC) Coupling
The concept of the excitation-contraction (EC) coupling has been defined as the processes at the cellular level that precedes electrical excitation leading to the activation of the myofilaments (Schlüter, 2016). The excitation-contraction (EC) coupling has been found to control the cardiac and skeletal muscles, with some notable differences. Plopper et al. (2015) point out that the resting muscles cells have a much-reduced concentration of Ca2+ in the cytol in comparison to the concentration outside the cell and inside the SR Ca2+ storage organelles. When the excitation-contraction (EC) coupling commences, the Ca2+ enters the cytosol and exits it as the cell starts to enter the resting position. The process creates an increase and reduction of cytosolic Ca2+ concentration that goes on in the cells. The process of the repeated increase and decrease in the Ca2+ cytosolic concentration is termed as the Ca2+ transient.
The process of excitation-contraction (EC) coupling in a cardiac cell is divided into four major steps. According to Plopper et al. (2015), the first step is the initiation of a signal at the sarcolemma through the process of polarization. During this process, a potential is created when the membrane becomes more positive relative to its resting potential due to an incoming action potential. The Cav channels that are voltage-dependent sense the change in membrane potential thus opening during the second phase of the cardiac action potential. The result is a flow of the calcium ions (Ca2+)through the established electrochemical potential and down into the cell. The second phase is the calcium ions (Ca2+) influx through the Cav 1.2 Ca2+ channels that are responsible for the stimulation of the release of Ca2+ from the SR Ca2+ organelle (Plopper et al., 2015). The SR Ca2+ organelle has been found to have storage of calcium ions in millimolar concentration. Schlüter, 2016,) points out that the excitation and contraction of the cardiomyocytes are linked with the change in the concentration of the Ca2+. The process begins with the triggering of the Ca2+ release from the sarcoplasmic reticulum. This leads to the sarcolemmal Ca2+ influx leading to an increase in the intracellular Ca2+………………………………………………………………………………………………
