Levels of organisation
Requirements for respiration
Digestive system
Structures in the digestive system
100

what are the building blocks of life?

cells

100

What is our source of energy?

Food.

100

Name the missing nutrient group - lipids, carbohydrates, vitamins and minerals

proteins

100

Name the organ responsible for the physical breakdown of food in the mouth.

Teeth

200

Which level of organisation would a heart belong to?

organ

200

What would happen if our energy intake from food is balanced with energy used by body?

maintain healthy weight

200

Which system's role is to breakdown food to extract nutrients and obtain energy?

Digestive system

200

Name the tube that connects the mouth to the stomach

oesophagus

300

What are the levels of organisation from smallest to largest?

cell - tissue - organs - systems - organisms

300

What are the two chemicals (reactants) needed for respiration?

Glucose and oxygen

300

What are the chemicals produced by the body that speed up the rate at which food is digested?

Enzymes

300

Which organ produces bile?

Liver

400

Which system is responsible for moving oxygen and glucose to cells?

Circulatory system

400

What is the name of the reaction where cells convert glucose/sugar into energy?

Respiration

400

What are the name of the structures in the small intestine that increase the surface area for absorption?

villi

400

Which organ releases a chemical to help to maintain blood sugar levels?

Pancreas

500

The skeletal system is responsible for protection, movement and support. What is the other role?

To make blood cells

500

What word is used to describe all chemical reactions that occur within a living organism in order to maintain life?

metabolism

500

What is the name of the process by which food is moved through the digestive tract by muscular contractions?

peristalsis

500

Name the organ where most of the water is absorbed.

Large intestine