Respiration B1.3 Flashcards
How is anaerobic respiration in plants and yeast different from muscle cells?
- It produces ethanol and carbon dioxide in plants and yeast, while lactic acid is produced in muscle cells
What happens during anaerobic respiration when oxygen is absent?
- It converts glucose into lactic acid in muscles (in animals) and ethanol and carbon dioxide in yeast (plant cells and fungi)
Glucose –> Lactic acid
Glucose –> ethanol + carbon dioxide
What is a disadvantage of lactic acid build up?
Becomes painful and muscles get fatigued.
Build up of an oxygen debt which has to break down the lactic acid.
Does anaerobic respiration transfer more or less energy than aerobic respiration?
Less energy
What is the word equation for aerobic respiration?
glucose + oxygen –> carbon dioxide + water
What is the equation for anaerobic respiration in plants?
Glucose –> ethanol + carbon dioxide
(Fermentation)
What is the balanced symbol equation for aerobic respiration?
C(6) H(12) O(6) + 6O(2) –> 6CO(2) + 6H(2)O
(number) = smaller number
What is oxygen debt and how does It occur?
When you need additional oxygen, occurs after anaerobic respiration and is needed to break down lactic acid build up.
What is the main difference between aerobic and anaerobic respiration?
Aerobic = With Oxygen
Anaerobic = Without oxygen
What are monomers?
Simple cell structures (e.g Sugar, Amino Acids)
What are polymers?
Monomers joined together in a long chain. Make more complex structures.
What monomers make up:
a. Carbohydrates
b. Proteins
c. Lipids
a. Simple sugars
b. Amino Acids
c. Fatty acids and Glycerol
How can polymers be broken down?
Chemical bonds broken (Carbohydrates) or (digestive) enzymes (Proteins and Lipids)
What is metabolism?
Sum of all chemical reactions
