Food Tests
What colour is a positive test for starch?
Blue/Black
What does an enzyme do to reactions?
Speed them up
Which organ of the digestive system contains hydrochloric acid?
Stomach
What is the name for your windpipe?
Trachea
What is the name given to the organism that starts the food chain?
Producer
What colour is a positive test for sugar?
Brick red/Yellow/Green/Orange
What enzyme digests proteins?
Protease
What 2 things do food molecules need to be to be able to move into the blood?
Small
Soluble
Where in the respiratory system does gas exchange happen?
Alveoli
What process do all producers do?
Photosynthesis
What chemical is used to test for starch?
Iodine
What enzyme digests starch?
Amylase
Which organ of the digestive system produces enzymes?
Pancreas
Diaphragm
What is the name given to an organism that eats other organisms?
Consumer
What chemical is used to test for sugar?
Benedict's
Where in the digestive system is amylase found?
Mouth
Small intestine
Pancreas
Which organ of the digestive system is where food molecules are absorbed into the blood?
Small intestine
Name 3 adaptations the alveoli have that make them efficient at gas exchange
Large surface area
Thin walls
Good blood supply
The movement of energy and matter
What chemical is used to test for protein?
Biuret's
Where in the digestive system is protease found?
Small intestine
Pancreas
Which organ of the digestive system has villi?
Small intestine
Explain the difference between ventilation and respiration
Ventilation = Breathing
Respiration = Chemical reaction. Glucose + Oxygen --> Carbon dioxide + Water
Organisms rely on each other for survival. What term describes this?
Interdependence