Module 8: Non-Infectious Diseases

Question 1

Non-infectious diseases

Answer 1

Homeostasis
Causes and effects
Epidemiology
Prevention
Technologies and disorders

Question 2

How is an organism’s internal environment maintained in response to a changing external environment?

Answer 2

Negative feedback loops that show homeostasis by using a range of sources
- temperature
- glucose
Various mechanisms used by organisms to maintain their internal environment within tolerance limits
- trends and patterns in behavioural, structural and physiological adaptations in endotherms
that assist in maintaining homeostasis
- internal coordination systems that allow homeostasis to be maintained, including hormones and neural pathways
- mechanisms in plants that allow water balance to be maintained

Question 3

Do non-infectious diseases cause more deaths than infectious diseases?

Answer 3

Causes and effects of non-infectious diseases in humans
- genetic diseases
- diseases caused by environmental exposure
- nutritional diseases
- cancer
Show the incidence, prevalence and mortality rates of non-infectious diseases
- nutritional diseases
- diseases caused by environmental exposure

Question 4

Why are epidemiological studies used?

Answer 4

Patterns of non-infectious diseases in populations, including their incidence and prevalence
- nutritional diseases
- diseases caused by environmental exposure
Treatment/management and possible future directions for further research, of a non-infectious disease using an example
Method used in an example of an epidemiological study
Benefits of engaging in an epidemiological study

Question 5

How can non-infectious diseases be prevented?

Answer 5

Evaluate the effectiveness of current disease-prevention methods and develop strategies for the prevention of a non-infectious disease
- educational programs and campaigns
- genetic engineering

Question 6

How can technologies be used to assist people who experience disorders?

Answer 6

explain a range of causes of disorders by investigating the structures and functions of the relevant
organs, for example:
– hearing loss
– visual disorders
– loss of kidney function
● investigate technologies that are used to assist with the effects of a disorder, including but not
limited to: (ACSBL100)
– hearing loss: cochlear implants, bone conduction implants, hearing aids
– visual disorders: spectacles, laser surgery
– loss of kidney function: dialysis
● evaluate the effectiveness of a technology that is used to manage and assist with the effects of a
disorder