Bioenergetics Flashcards
What is the word equation for aerobic respiration?
Oxygen+ glucose -> carbon dioxide+ water
What is the symbol equation for aerobic respiration?
6O2+ C6H12O6 -> 6CO2+ 6H2O
Define breathing
The physical process of inhaling and exhaling air in and out of lungs
Define respiration
The chemical, exothermic reaction where glucose and oxygen chemically react to release energy for cellular reactions
What do animals need energy from respiration for?
. Keeping a constant body temperature
. Muscle contractions
. Building molecules
Give 2 examples of why plants need energy from respiration for?
. Moving ions to roots
. Convert amino acids to proteins
What is the word equation for anaerobic respiration?
Glucose -> lactic acid + energy
Define anaerobic respiration
The incomplete breakdown of glucose and so releases less energy than aerobic respiration making lactic acid
What are the negatives of anaerobic respiration?
. Releases less energy than aerobic
. Produces lactic acid which is toxic
What is oxygen debt?
After anaerobic respiration, you have to pay back the oxygen to break down the lactic acid into CO2
When would plants respire anaerobically? Give an example.
Plants that grow in areas of low oxygen e.g marshes
What is the name of when plants and yeast respire anaerobically?
Fermentation
What is the word equation for fermentation?
Glucose -> carbon dioxide+ ethanol+ energy
What is an enzyme?
Biological catalysts, they control the rate of chemical reactions
Define metabolism
Sun of all the reactions in the cell of your body
