Please enable JavaScript.
Coggle requires JavaScript to display documents.
what makes an organism respire faster? - Coggle Diagram
what makes an organism respire faster?
types of respirations
Aerobic respiration
Requires oxygen.
Glucose + Oxygen → Carbon dioxide + Water + ATP
Yields up to 36–38 ATP molecules per glucose.
Occurs in mitochondria.
More efficient and sustainable over long periods.
Anaerobic respiration
Does not require oxygen.
Produces less energy (2 ATP per glucose).
Results in lactic acid (animals) or ethanol and CO₂ (yeast/plants).
Used during short bursts of high activity.
Causes muscle fatigue and pain due to lactic acid buildup.
factors affecting respiration
Substrate concentration
Glucose or other substrates are the fuel for respiration.
Higher substrate concentration increases the rate of respiration, as more fuel is available for energy production.
Limiting substrates slow down the process due to lack of raw materials.
Example: In yeast, the presence of more glucose speeds up fermentation.
oxygen levels
High oxygen availability allows for efficient aerobic respiration, which produces more ATP.
Low oxygen conditions force the organism to switch to anaerobic respiration, which is less efficient.
Example: During intense exercise, oxygen may become limiting, causing muscle cells to rely on anaerobic pathways.
PH
Enzymes involved in respiration (like ATP synthase and dehydrogenase) have an optimal pH.
A pH that is too acidic or too alkaline will denature enzymes or reduce their efficiency.
temperature
Optimal temperatures increase enzyme activity, speeding up the reactions of respiration.
Too high temperatures can denature enzymes, causing the respiration rate to drop sharply.
Too low temperatures slow down enzyme activity.
Activity Level
Active organisms (e.g., during exercise or flight) have a higher demand for energy → faster respiration.
Muscles contract repeatedly and require continuous ATP supply.
Respiration rate increases to meet ATP demand.
Organism Size and Metabolism
Smaller animals tend to have a higher metabolic rate to maintain body heat.
Higher metabolism means faster respiration to meet energy needs.
Enzyme Availability and Efficiency
Enzymes catalyze each step of cellular respiration.
More active or more abundant enzymes lead to faster metabolic reactions.
Genetic factors or health conditions can influence enzyme levels.
Cell Type
Some cells require more energy than others:
High-energy cells: Muscle cells, brain neurons (lots of mitochondria).
Low-energy cells: Fat cells, skin cells.
More mitochondria → faster rate of respiration.