Using Energy And Anerobic Respiration Flashcards Preview

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Flashcards in Using Energy And Anerobic Respiration Deck (11):

Building large molecules?

Cells use energy to make small molecules join together to make long chains


Muscle contraction?

Muscles use energy to contract. They contain a store of glucose called glycogen, which is made up of many glucose molecules linked together. When a muscle needs energy, it breaks down the glycogen to produce glucose for use in respiration


Maintaining body temperature ?

Mammals and birds keep body temperature around 37 degrees . If their environment is colder than they are, then heat is lost from their body. Respiration in cells release energy which increases body temperature


Making amino acids?

Plants make amino acids from sugar and nitrate ions , this requires energy


Energy for swimming ( sperm not in the pool)

Sperm cells are packed with mitochondria which produce energy to drive its tail movements so that it can swim towards the egg ( distance of 15cm)
They do not have any food reserves like glycogen so instead use sugars from fluid in which they were ejected from male


Anaerobic respiration ( incomplete breakdown of glucose to lactic acid) EQUATION?

Glucose------lactic acid (+ energy)


Does it release more or less energy than aerobic respiration

Far less! It releases 0.8 Kj where aerobic respiration releases 16.1 kj per gram of glucose


Where does lactic acid build up and what can it cause

In the muscles, makes muscles feel tired and cause cramps. They stop contracting efficiently


How do you get rid of lactic acid after exercising

Continue to breathe heavily, takes in extra oxygen that you need to get rid of lactic acid ( oxygen debt)


When is anaerobic respiration carried out

When your body cannot get adequate supply of oxygen to the cells


Whats the maximum volume of oxygen your body is able to use per minute called

VO2 max ( fitter you are the higher it is)