Respiratory System
Energy
Digestive System
More energy
Circulatory System
100

Cellular respiration needs this gas exchanged in the lungs

Oxygen

100

The term for energy stored in food.

Chemical potential energy

100

Digestion begins in this part of your body

The mouth

100

A ball at the top of a hill has this type of energy

What is gravitational potential energy

100

This transports oxygen and nutrients in the body

What is the circulatory system

200

The name of the tiny sacs where gaseous exchange takes place

Alveoli

200

The heat transfer method seen in liquids and gases

Convection

200

Mechanical digestion occurs in two main places in the body

What is the stomach and mouth

200

A ball rolling down a hill is transforming one type of energy to another of energy. 

What is the transformation of gravitational potential energy to kinetic energy

200

This vessel transports blood towards the lungs

What is the pulmonary artery

300

The role of the diaphragm.

The diaphragm is a muscle that moves up and down (involuntarily) to fill and then empty the lungs of air.

300

Types of energy associated with this activity


Elastic potential energy

Gravitational potential energy

Kinetic energy

Heat and sound energy

300

The relative sizes of glucose and starch molecules

Glucose molecules are smaller than starch molecules

300

The percentage of useful energy output from energy input is given this name. 

What is energy efficiency.

300

This blood vessel has thick muscular walls

What is arteries

400

List the pathway air takes from the mouth to the alveoli

Trachea, bronchi, bronchioles

400

What are solar cells used for?

Conversion of light to electrical energy

400

The enzyme found in the stomach that increases the rate of digestion of proteins

Protease

400

Three types of heat transfer

Conduction, convection and radiation

400

Two types of blood cells

Red blood cells and white blood cells

500

Breathing rate increases during exercise

Increased demand for energy increases the rate of cellular respiration which requires more oxygen.  Increasing the rate of breathing enables more oxygen to enter the bloodstream.  It also allows for the exchange of carbon dioxide back into the atmosphere.

500

Explain this diagram.  Name an object this diagram could be associated with.


Sankey diagram

Useful (sound and light) and wasted energy (heat)

Television, iPad, laptop 

500

The role of the villi in the small intestine

Increase surface area to increase rate of absorption of nutrients

500

Name the energy transformations associated with a petrol fuelled car.  


500

Deoxygenated blood returns to the heart via the vena cava.  List the chambers of the heart and blood vessels - in order - that blood travels through before it is returned to the body via the aorta.

 

Right atrium, right ventricle, pulmonary artery, pulmonary vein, left atrium, left ventricle