Y8 Biology PPE Revision Flashcards
(32 cards)
How do you test for starch?
Iodine, turns substance black / blue
How do you test for Protein?
Buiret, turns substance Purple
How do you test for glucose?
Benedicts solution, turns substance Orange
Name 3 diseases and what nutrient they are lacking.
Blindness, Scurvy and Rickets
What are some adaptions of the Villi in the small intestine
Thin walls, Folds that give a larger surface area and a network of capillaries
Enzymes are ____ and _____
proteins, biological catalysts
What effects do Carbohydrates have on the body?
Provides energy
What effect does Protein have on the body?
Growth and repair
What effect does fat have on the body?
To provide energy, Stores energy in the body
What effect do minerals have on the body?
Maintain health
What effect do Vitamins have on the body?
Maintain health
What effect does Fibre have on the body?
Helps food move through the body
What effect does water have on the body?
Hydrates body and cells
What is a drug?
A chemical substance that affects the nerve system
What effect do Painkillers have on a person?
Reduces pain by blocking messages in the nerve system
What effect doses Hallucinogens have on the body ?
Makes you hear, smell, see and taste things that are not really there
What effect does injecting drugs have on the body?
infected blood, Including HIV
What effect does a stimulant drug have on the body?
speeds up messages in the nerve system
How is Tar harmful to the body?
May give you lung cancer
How is Nicotine harmful to the body?
Gives you addiction to the drug.
How is Carbon Monoxide harmful to the body?
Reduces the amount of red blood cells your body can carry
How is smoke harmful to the body?
Gives chest infections and more coughing
What are the long term effects of drinking alcohol?
Liver Cancer and Brain damage.
What are the short term effects of drinking alcohol?
Dizziness and Hangovers.
