B9 Aerobic and Anaerobic respiration Flashcards
fact about aerobic respiration
it takes place all the time in plant and animal cells
what does aerobic respiration react with
glucose reacts with oxygen
-transfers energy that your cells use
whats produced from aerobic respiration
carbon dioxide and water
why is it called aerobic respiration
it uses oxygen from the air
what type of reaction is it and why
an exothermic reaction
-it transfers energy to the environment-more energy transferred when new bonds are formed in products
aerobic respiration equation
glucose + oxygen - carbon dioxide + water
where does aerobic respiration take place
in the mitochondria
what is a cytoplasm
where enzymes are made. location of reactions in anaerobic respiration
what is a nucleus
holds genetic code for enzymes for aerobic respiration
what is mitochondrion
contain the enzymes for aerobic respiration
what is cell membrane
allows gases and water to pass freely into and out of the cell. controls the passage of other molecules
name 4 needs for respiration
-living cells need energy to carry out the basic functions of life
-in animals energy from respiration is transferred to make muscles contract
-mammals and birds maintain a constant internal body temperature
-
What is oxygen debt?
The amount of oxygen needed to break down lactic acid which has built up.
anaerobic respiration takes place
without oxygen
why is anaerobic respiration not as efficent as aerobic respiration
glucose molecules arent borken down completely
-animal cells the end product of anaerobic respirations lactic acid instead of carbon dioxide and wtaer
why is less energy transferred during anaerobic
the breakdown of glucose is incomplete,
anaerobic respiration word equation
glucose———- lactic acid (energy transferred to the environment)
anaerobic respiration in yeast cells is named what
-fermentation
state the word equation for anaerobic respiration in plants and yeast cells
glucose——– ethanol + carbon dioxide
is respiration an exothermic or endothermic reaction
exothermic
-because it involves the release of energy
what type of respiration releases more energy and why
-aerobic respiration
-this is because it doesn’t break down the glucose molecule completely so doesnt release as much energy
what can the ethanol produced by aerobic respiration be used for
making alcoholic drinks
Body Responses to Exercise
Increase in heart/breathing rate and in breath volume
Glycogen stores in the muscles are converted to glucose for cellular respiration
Flow of oxygenated blood to muscles increases
This happens to increase the rate of supply of glucose and oxygen and removal of carbon dioxide.
Anaerobic respiration in plant cells
Production of Ethanol and Carbon Dioxide.
What is Metabolism?
-the sum of all reactions in the body, including conversion of glucose to starch, glycogen and cellulose, formation of lipid molecules,
What does blood flowing through the muscles do during anaerobic respiration?
Transports lactic acid to liver where it is converted to glucose.
