Bionics Questions – Section 4

934 001 / H2, H11, H12 / 9.3.4.ii / 4 - 5 /

Marks5

1Which has the greatest concentration of carbon dioxide – inhaled or exhaled air?

A Senior Science student performed an investigation to find out.

Which test below would be the best method to adopt to find out the answer to the question? In terms of planning a first hand investigation, explain what makes one of the tests below better than the others.

Test 1Blow the air through a straw into a beaker of limewater. Observe how quickly the limewater turns milky.

Test 2Set up equipment that causes inhaled and exhaled air to pass through a beaker. Observe how quickly the limewater turns milky.

Test 3Set up equipment that causes inhaled and exhaled air to pass through different beakers. Observe how quickly the limewater turns milky in each beaker.

Test 4Set up equipment that causes inhaled and exhaled air to pass through different beakers. Observe how quickly the limewater turns milky in each beaker. Repeat this experiment several times using different students.

Marking Criteria / Marks
  • Correctly select the best test
  • Identify principles of experimental design (repeat, measure, control)
  • Explain using the principles why one test is better than another, or Explain reason why principle is important
/ 4 - 5
1 - 3
934 002 / H9 / 9.3.4.a / 3 - 4 /

Marks1

2In the table is a list of structures related to respiration.

Which choice (A,B C,D) is the function correctly matched to the structure.

Alveoli / Capillaries / Diaphragm / Trachea
A / Air sac / Get oxygen / Contract to exhale / Transport
B / Air sac / Get carbon dioxide / Contract to inhale / Transport
C / Gas exchange / Transport / Contract to exhale / Pathway for air
D / Gas exchange / Transport / Contract to inhale / Pathway for air
934 003 / H4, H9 / 9.3.4.e, d, iii / 2 - 5 /

Marks7

There are several life support systems (or devices) in major hospitals.

  1. Identify four life support systems or devices used in major hospitals.
  2. Discuss why such devices are necessary detailing specific examples.
  3. Explain the role of one of these devices in maintaining life.

Marking Criteria
/ Marks
a.Identify 4 systems (2) / 2 (1)
  1. Identify at least one issue and provide points for and against
Provide at least one example / 3
c.Name the role and clearly link to how the device supports life / 2
934 004 / H9, H11, / 9.3.4.b, ii / 2 - 5 /

Marks5

In an operation a persons heart stopped beating.

  1. Name a technique that could be used to maintain life in such a situation.[1 mark]
  2. Briefly outline a first hand investigation showing why expired air resuscitation works.[2]
  3. Explain why external cardiac compression works.[2 marks]

Marking Criteria
/ Marks
a.Correctly name a technique / 1
b.Provide a general sketch of the investigation / 2
c.Give a reason / 2

2003 CSSA Trial HSC

934 005 / H7, H9 / 9.3.4.b / 3 - 4 /

Marks1

What life saving technique is shown in the diagram opposite?

ACardio Pulmonary Resuscitation (CPR)

BExternal Cardiac Compression (ECC)

CExternal Air Resuscitation (EAR)

DMaximum head tilt

934 006 / H9 / 9.3.4.a / 3 - 4 /

Marks2

Question 006 should be answered with reference to the respiratory system.

a.What is a capillary network?(1 mark)

b.What is its function?(1 mark)

Marking Criteria – Part a

/ Marks
State what is a capillary network / 1

Marking Criteria – Part b

State the function of a capillary network / 1

2002 CSSA Trial HSC

934 007 / H4, H7 / 9.3.4.f / 2 - 3 /

Marks1

An example of a life support device or system used in a major hospital is a:

AHeart

BProsthesis

CPacemaker

DMagnetic Resonance Imaging

934 008 / H14 / 9.3.4.ii / 3 - 4 /

Marks1

A student compared carbon dioxide levels in inhaled air to carbon dioxide levels in exhaled air. To determine carbon dioxide levels both inhaled air and exhaled air passed through different solutions of limewater. Limewater goes milky (white) when carbon dioxide is bubbled through it. The following equipment was set up.

The most appropriate conclusion based on this experimental set up is:

AThe percentage of carbon dioxide in inhaled air is 16% and exhaled air is 21%

BThe percentage of carbon dioxide in inhaled air is 21% and exhaled air is 16%

CInhaled air has a higher percentage of carbon dioxide than exhaled air.

DExhaled air has a higher percentage of carbon dioxide than inhaled air.

934 009 / H7 / 9.3.4.c / 2 - 4 /

Marks3

Explain why cardio-pulmonary resuscitation techniques can maintain life when the heart has ceased beating.

Marking Criteria
/ Marks
Outlines CPR – involving both ECC and EAR.
Provides reason why EAR can maintain life
Provides reason why ECC can maintain life. / 3
Provides reason why CPR can maintain life
Identifies CPR as involving ECC and EAR. / 1 - 2
934 010 / H4, H7, H9 / 9.3.4.b / 2 - 4 /

Marks3

  1. Name the structures of the digestive system labelled H & M in the diagram.

[1 mark]

  1. Identify the function of each structure.

[2 marks]

2001 CSSA Trial HSC

934 011 / H7 / 9.3.4.c / 3 - 4 /

Marks1

Cardio-pulmonary resuscitation (CPR) and use of a heart-lung machine has the same purpose. Which is the best description of the purpose of these two procedures?

ASupply the heart with oxygen and keep the heart pumping.

BSupply the lungs with oxygen and keep the heart pumping.

CMaintain oxygen supply to essential organs, particularly the brain.

DMake sure gas exchange occurs.

2001 CSSA Trial HSC

934 012 / H4, H9 / 9.3.4.f, iii / 2 - 3 /

Marks3

  1. Life support systems are used to artificially sustain life or to monitor life functions (eg a heart / lung machine). Name TWO other life support devices. (1 mark)
  1. Explain the role of ONE of these in maintaining life (not the heart / lung machine).

(2 marks)

Marking Criteria
/ Marks
a.Correctly 2 life support devices / 1
b.Clear role linking function with reason for life support. / 2