Zusammenfassung der Ressource
Year 9 'First'
Science Exam
Revision
- Fitness and Health
- Fitness- The ability to perform exercise
Health- Absence of disease- certain factors
can put at risk of becoming unhealthy
- Heart Rate- how fast H.R goes
back to normal
- Stamina- How long
you can exercise for
- Aglity-Change of
direction at plase
- Staying Healthy And Diseases
- Diseases
- Organisms that cause disease are
called 'Pathogens'
- Fungi- Althete's foot Virus- Flu Bacteria- chloera Protozoa- malaria
- Human Health
and Diet
- Healthy Eating
- This is what are food
is broken down into
<-
- Fat- under skin, around organs (adipose tissue)
Carbs- Liver( as guycogen) or converted to fat
Protein- Not Stored in the body
- Protein
- To work out your Estimated
Average Daily Requirement
(EAR) of Protein (g) all you do is;
0.6 x Your body mass (Kg)
- First-Class Protein = In meat
and fish ( animal Protien)
Secondary- Class Protein=
Plant Protein
- BMI
- To work out you Body Mass
Index (BMI) BMI= mass (Kg) /
height ( in metres squared)
- This chart shows the
bands of BMI for Audlts
- I worked out that my BMI
is 22.2, going with the
adults chart im in the
normal range
- Human Health
- Heart Disease
- Smoking is a big risk for heart
disease, a cigarette contains
Carbon Monoxide which takes
over the oxygen in the Red Blood
Cells, this means the Heart has
to work faster tom provide cells
with more Oxygen
- Being Obese can also lead to Heart
Disease. Cholesterol can bulid in the
arteries causing plaque and
narrowing of the arteries, this can
sometimes cause a blood clot. From
eating to much fat the coronary
arteries can become blocked and can
even lead to an heart attack
- The Eye and Nervous System
- The Eye
- This is the structure of the eye
- Nervous System
- Stimulus- A change in
the evironment thta we
detect and respond to
- Receptors- Speclalised cells
that detect the stimulus
- Effector- A muscle or gland that wil
bring about the response to a stimulus