BIOL121 : Human Biological Science - Bacterial Septicaemia - Case Study Assessment Answer

Code: BIOL121

Human Biological Science Assessment Answer

Assignment Task: BIOL121  QUESTION 1 - BIOL121  Which type of immunity is expressed in the following scenarios? Choose between:

• Non-specific (first line defence)
• Specific (antibody-mediated)
• Specific (cell-mediated immunity)

QUESTION 2 - BIOL121  Choose TWO of the below scenarios and highlight these rows bold.  State which general property of adaptive immunity the scenario illustrates in the second column. Select ONE phrase (from the list below) that BEST describes what is happening at a cellular level to result in this property of adaptive immunity. QUESTION 3 - BIOL121  Describe how bone cells respond to the hormones involved in the homeostasis of blood calcium ion concentration. QUESTION 4 - BIOL121         Why is an injury to the medulla oblongata usually fatal? QUESTION 5 - BIOL121  Complete the following table summarising the effects of autonomic innervation on target tissues. You must include both the effect upon the target tissue and a consequence of this stimulation in your answer. QUESTION 6 - BIOL121  Using the diagram provided as a prompt, outline the four steps involved in the transmission of an electrical impulse from the presynaptic neuron to the postsynaptic neuron. QUESTION 7 - BIOL121  The following paragraph refers to muscle contraction. Fill in each of the blanks to complete the paragraph using terms from the list provided.  More terms than necessary are provided, and terms may be used more than once. QUESTION 8 - BIOL121  Think about how the renin-angiotensin-aldosterone system acts to maintain normal blood pressure. Susan has sustained damage to her adrenal glands.  Consequently, her circulating levels of aldosterone are abnormally low.

• Where are the target cells for aldosterone located in the body?
• What do you expect the lack of aldosterone to do to Susan’s blood pressure? Explain your answer.

QUESTION 9 - BIOL121  Explain the role of baroreceptors in the control of blood pressure during a short period of widespread vasodilation. QUESTION 10 - BIOL121      Explain the term ‘normal sinus rhythm’. QUESTION 11 - BIOL121  For each of the scenarios below, indicate whether you would you expect resting heart rate to be greater or less than that associated with normal sinus rhythm of a person with average fitness.  Explain the cardiac physiology underlying the identified change. QUESTION 12 - BIOL121  Haemophilia is the oldest known hereditary bleeding disorder.  Explain why haemophilia is more commonly seen in males. QUESTION 13 - BIOL121          Tasma is enjoying a night out at the pub with her friends.  It is well established that alcohol inhibits the secretion of ADH.  Explain how this will affect her urine output. QUESTION 14 - BIOL121  The following table describes the three elementary steps of urine formation. Complete the missing parts of the table. QUESTION 15 - BIOL121  The Wigger’s diagram (below) represents pressure and volume relationships in the left side of the heart during one cardiac cycle.  To answer this question, you should focus on the changes in pressure in different chambers of, or vessels leading from, the left side of the heart. QUESTION 16 - BIOL121  A person with type B blood has been involved in a car accident and excessive bleeding necessitates a blood transfusion.  Due to an error by a careless laboratory technician, the person is given type A blood.  Explain what will happen.

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