Unit 12
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/18
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
19 Terms
What is the definition of Respiration?
the chemical reactions in cells that break down nutrient molecules and release energy for metabolism
What are seven uses of energy in the human body?
muscle contraction, protein synthesis, cell division, active transport, growth, passage of nerve impulses, maintaining constant body temperature
What controls or catalyses the chemical reactions of respiration?
the action of enzymes in cells
What can influence the rate of respiration?
temperature and pH
What are the two types of respiration?
Aerobic respiration and Anaerobic respiration
What is the definition of Aerobic respiration?
the chemical reactions in cells that use oxygen to break down nutrient molecules to release energy
What is the word equation for aerobic respiration?
glucose + oxygen -> carbon dioxide + water
What is the balanced chemical equation for aerobic respiration?
C6H12O6 + 6O2 -> 6CO2 + 6H2O
What is the definition of Anaerobic respiration?
the chemical reactions in cells that break down nutrient molecules to release energy without using oxygen
What is the word equation for anaerobic respiration in muscles during vigorous exercise?
glucose -> lactic acid
What is the chemical equation for anaerobic respiration in muscles?
C6H12O6 -> 2C3H6O3
What is the word equation for anaerobic respiration in the microorganism yeast?
glucose -> alcohol + carbon dioxide
What is the chemical equation for anaerobic respiration in yeast?
C6H12O6 -> 2C2H5OH + 2CO2
Which type of respiration releases more energy?
Aerobic respiration releases more energy per glucose than anaerobic respiration
What builds up in muscles during vigorous exercise?
Lactic acid is produced in muscles by anaerobic respiration creating an oxygen debt
Where is lactic acid absorbed from the blood to be broken down after exercise?
the liver
How does the liver break down lactic acid?
It carries out aerobic respiration to break it down into carbon dioxide and water
Why does heart rate remain high after exercise?
to transport lactic acid in blood from muscles to liver
Why does breathing rate remain high after exercise?
to supply oxygen for aerobic respiration of lactic acid in the liver to remove the oxygen debt