Unit 1: Learning Aim B Flashcards
What is cystic fibrosis?
It is caused by a faulty recessive gene thought to be carried by as many as 4% of the UK population that results in a defective protein being produced. This can cause the lungs to be clogged with sticky mucus, nurishment problems, respiratory problems and chest infections. It can be treated by various drugs to help control breathing.
What is brittle bone disease?
It may be passed from a parent, but can be due to a genetic mutation. A sufferer can experience breaking their bones more easily because their bones lack collagen. It can be treated with physiotherapy, assistive equipment and drugs to strengthen their bones.
What is phenylketonuria (PKU)?
Rare genetic disorder that prevents a child from breaking down phenylalanine that can be found in meat, milk and eggs. If it was eaten, there was a buildup of harmful substances in the body, which can damage brain development. It cannot be cured, but babies are screened for it at birth.
What is huntington’s disease?
An inherited neurodegenerative genetic disorder that causes progressive damage to certain nerve cells in the brain. It can affect muscle coordination and cause mental decline and behavioural changes.
What is klinefelter syndrome?
Children that are born with an extra X chromosome after the baby is conceived, meaning that the condition is not inherited. This is shown in sufferers when they are slow reaching milestones, sitting up or walking, may have poor muscle control and delayed communication. Treatment is available for low testosterone levels.
What is down syndrome?
A genetic condition that occurs as a result of an extra chromosome, which can cause varying levels of learning disability, so it is generally not inherited. They do experience a higher incidence of depression due to this condition.
What is colour blindness?
Individuals have difficulty in distinguishing between colours, which is passed down through genetics due to inherited abnormalities in the retina. It can be experienced as a result of diabetes, age or multiple sclerosis.
What is duchenne muscular dystrophy?
A group of inherited genetic conditions that gradually weakens muscles that can lead to disability. It is caused by changes in the genes responsible for the structure and functioning of a person’s muscles. They can face severe health problems, especially by their late teens.
What is Gesell’s maturation theory?
Focuses solely on how nature aids the development of characteristics.
Believed that: Development is genetically determined from birth.
Children follow the same orderly sequence in their development.
Pace of development may vary depending on physical and intellectual development.
What is Bandura’s social learning theory?
Summarises that nurture alone affects the development of certain characteristics.
- Attention.
- Retention.
- Reproduction.
- Motivation.
What is the stress diathesis model?
Nature and nurture both affect the development of characteristics.
Nature = Diathesis: Predisposition to mental disorders due to an abnormality in the brain.
Nurture = Stresses: Traumatic events in a person’s life.
What is cancer?
Uncontrolled cell growth.
Often caused by environmental and lifestyle factors.
Some inherited genes/ gene faults increase risks of developing cancer.
For example: Breast, Bowel, Womb, Kidney.
What is diabetes?
Type 1: Body does not produce insulin.
Genetic.
Type 2: Body stops responding to insulin.
Lifestyle.
Environmental factors play a role in developing type 2 diabetes.
Predisposition to both type 1 and type 2.
What is high blood cholesterol?
Too much cholesterol in the body.
Lifestyle factors increase risk.
For example: Unhealthy diet, Smoking, Lack of exercise, Familial hypercholesterolaemia.
What are biological factors that can affect the development of an organism?
Mother's poor lifestyle when she's pregnant. Poor diet. Drug use. Alcohol use. Smoking.
What are the effects of poor lifestyle during pregnancy on a child?
Low birth rate. Premature birth. Long term health problems. Learning disabilities. Developmental decay. Congenital defects.
What can maternal infections cause in a child?
Health problems.
Still birth.
Miscarriage.
What problems can foetal alcohol syndrome cause in a child?
Small head circumference. Neurological problems. Abnormal growth. Developmental delay. Facial abnormalities.
What factors can contribute to congenital abnormalities?
Genetic E.G. Down’s syndrome.
Nutritional E.G. Deficiency in folate, which increases the risk of neural tube defect (spina bifida).
Environmental E.G. Maternal exposure to pesticides, chemicals, radiation or alcohol or tobacco, causing abnormal growth.
Infections E.G. Rubella, which could result in deafness and health problems.
What factors can affect human growth and development?
Inherited. Environmental. Social. Economic. Biological. Life events.