Unconfident Topics Flashcards
What is energy provided from?
Respiration
What are the 2 types of respiration?
Aerobic and anaerobic
When is anaerobic respiration used?
Vigorous exercise
What is the formula for anaerobic respiration?
Glucose -> lactic acid
What is oxygen debt?
Amount of oxygen needed after exercise to get rid of lactic acid
What is the metabolism?
Sum if all chemical reactions in body.
How is glucose stored in plants?
Cellulose, starch, amino acids
How is glucose stored in animals?
Glycogen
What is the first limiting factor?
Light intensity
What is the second limiting factor?
Co2 concentration
What is the third limiting factor?
Temperature
What is the practical for photosynthesis?
• boiling tube- 10cm from LED light
•fill w sodium hydrocarbonate
• pondweed in tube
• count bubbles produced
• repeat at 20,30,40 cm
What was the first antibiotic?
Penecillin
What is TMV?
Causes discoloured leaves which prevents photosynthesis
What is RBS?
Caused by fungus, purple spots stop photosynthesis. Can burn leaves or use fungicides
What do pathogens produce in the body?
Toxins
How does phagocytosis work?
Enzymes are used to ingest the pathogens
How do antibodies work?
They are specific and stick to the pathogens then destroy them. They last for a long time and protect u from the same virus
How do antitoxins work?
Stick to toxins and stop them working
How is the skin a defence system?
Protective layer of dead cells
How is the nose a defence system?
Hair + mucus traps the pathogens