Important Vocab
The process of energy conversion that releases energy from food in the presence of oxygen
What is Cellular respiration?
What is the purpose of cellular respiration?
To create energy in the form of ATP which our cells need to do work and survive
What is the first stage of cellular respiration?
Glycolysis
What process do organisms use to generate energy when oxygen is not available?
What is fermentation?
Name at least two items you could buy in a store produced by alcoholic fermentation
Alcohol and bread
What is a calorie?
What are the reactants of cellular respiration?
Oxygen & glucose
What is the second stage of cellular respiration?
The Krebs (or Citric Acid) Cycle
What are the two types of fermentation?
Alcoholic & lactic acid fermentation
Name at least two items you could buy in a store produced by lactic acid fermentation
Cheese, yogurt, sour cream, pickles, sourdough bread, etc.
Chemical reactions that require oxygen are said to be...
What is aerobic?
What are the products of cellular respiration?
ATP, CO2 & Water
What is the third stage of cellular respiration?
What organism uses alcoholic fermentation?
What is yeast?
Which process does the body use to produce ATP during short bursts of strenuous activity?
What is (lactic acid) fermentation?
Chemical reactions that don't require oxygen are said to be...
What is anaerobic?
Approximately how many ATP are produced from one molecule of glucose during cellular respiration?
36-38 ATP
Which stage of cellular respiration is anaerobic? Which stages of anaerobic?
Glycolysis - Anaerobic
Krebs - Aerobic
Electron Transport Chain - Aerobic
What are two organisms that uses lactic acid fermentation?
Which process does the body use to produce ATP during longer periods of exercise?
What is cellular respiration?
This process releases energy from food molecules by producing ATP in the absence of oxygen
What is fermentation?
Name one way cellular respiration is similar to photosynthesis... Name one way cellular respiration is different than photosynthesis
Answers may vary...
Similar: They both are necessary to keep cells alive
Different: Animals use cellular respiration, Plants use photosynthesis... Cellular respiration's reactants are photosynthetic products (and vice versa)
How much ATP does each stage of cellular respiration make?
Glycolysis - 2 ATP
Krebs - 2 ATP
Electron Transport Chain - 32 ATP
What is one advantage and one disadvantage of fermentation?
Answers may vary
Advantage: doesn't require oxygen
Disadvantage: doesn't make a lot of ATP/can't work for a long duration of time
What is one advantage and one disadvantage of cellular respiration?
Answers may vary
Advantage: Produces a lot of ATP, can be used to sustain activity for a long time
Disadvantage: Requires O2