Topic 4 Bioenergetics Flashcards
(14 cards)
What is the chemical equation for photosynthesis
6H20 + 6CO2~~> C6H12O6+ 6O2
What is photosynthesis?
Photosynthesis is the process by which plants convert light energy into glucose using Co2 and water
What is the role of chlorophyll in photosynthesis?
Chlorophyll absorbs light energy
What factors affect the rate of photosynthesis?
Light intensity
Temp
Carbon dioxide conc
What is aerobic respiration?
Aerobic respiration is the process of releasing energy from glucose
What is the equation for aerobic respiration?
C6H12O6+6O2~~>6CO2+6H2O
What is anaerobic respiration?
Anaerobic respiration is the process of releasing energy from glucose without oxygen.
What is the equation for anaerobic respiration in animals?
Word and symbol
C6H12O6~~>2C3H6O3+ energy
Glucose → Lactic acid + energy
What is the equation for anaerobic respiration in yeast?
Symbol and word
C6H12O6~~>2C2H5OH+2CO2+ energy
Glucose → Ethanol + Carbon dioxide + energy
How does the body respond to exercise?
During exercise, the body increases its breathing and heart rate to supply more oxygen to muscles. If oxygen runs low, anaerobic respiration occurs, producing lactic acid.
What is oxygen debt?
Oxygen debt refers to the amount of oxygen required to break down the lactic acid produced during anaerobic respiration.
What is the role of the liver in bioenergetics?
It helps remove lactic acids by converting it back into glucose
What is the energy transferred by respiration used for?
Energy from respiration is used for processes like muscle contraction, cell division, protein synthesis, and maintaining body temperature.
What is metabolism?
Metabolism is the sum of all chemical reactions in the body, including both the breakdown of molecules to release energy and the building up of molecules for growth and repair.
