Biology Unit 2

Pregunta	Respuesta
What are enzymes made from?	Protein (long chains of amino acids)
How many reactions can enzymes catalyse?	It can only catalyse one reaction
Define a catalyst	A catalyst is a substance which increases the speed of a reaction, without being changed or used up in the reaction
What do starch, proteins and fats have in common?	They are big molecules therefore they are too big too pass through the walls of the digestive system
What does bile do?	Bile neutralises stomach acid and emulsifies fats (breaks down into tiny droplets to form a bigger surface area for lipases to work on and makes digestion happen faster)
Which enzyme converts starch into sugars?	Amylase
Where is bile produced?	In the liver
Where bile stored?	In the gall bladder
Where is amylase produced?	The salivary glands, the pancreas and the small intestine
Where is protease produced?	The stomach (pepsin), the small intestine and the pancreas
What does lipase convert?	Lipids into glycerol and fatty acid
Define respiration	The process of releasing energy from glucose which goes into every cell
Which process of respiration produces lactic acid due to the incomplete breakdown of glucose?	Anaerobic respiration
Give the word equation of aerobic respiration	Glucose+Oxygen----->Carbon Dioxide+Water+Energy
When anaerobic respiration used?	When there's not enough oxygen
What anaerobic respiration lead to?	Oxygen debt
Which type of respiration occurs in plants and animals?	Aerobic respiration
Which is the most efficient way to release energy from glucose?	Aerobic Respiration
Where does most of the reactions in aerobic respiration happen?	Inside the mitochondria

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