respiration!! basics, aerobic, unaerobic Flashcards
What is energy
The capacity for doing work
What is respiration
Set of chemical reactions that break down nutrient molecules in living cells to release energy
What are some of the uses of respiration [6mks]
1) Growth
2) Maintenance of body temperature
3) Passage of nerve impulses
4) Active transport
5) Cell division
6) Movement
What three elements do food molecules contain
Carbon, Hydrogen and Oxygen
Word equation for respiration
glucose+ oxygen=carbon dioxide +water +energy
Symbol equation for respiration
C6H1206 + 602——> energy+ 6CO2+ 6H20
What molecule is commonly used in cells as a form of energy
ATP (adenosine triphosphate)
What is aerobic respiration
The breaking down of food molecules to release energy in the prescence of oxygen
What is the word equation for unaerobic respiration
glucose——> lactic acid+ energy
What is the symbol equation for unaerobic respiration
C6H1206——>2C3H603+ energy
What are the two drawbacks of anaerobic respiration
1) Produces less ATP
2) Causes buildup of lactic acid which is poisonous
What are three stages of respiration
1) Rest
2) Hard exercise
3) Recovery
Uses for anaerobic respiration in other organisms
1) Microbial metabolism
2) Energy production in plants
Oxygen consumption can be measured using a ___________
Respirometer
When carbon dioxide is released is causes limewater to turn ________ and ____________ solution to turn from red——-> yellow-orange
milky and hydrogencarbonate
