Respiration Flashcards
What is the primary function of respiration?
To exchange gases, primarily oxygen and carbon dioxide, between an organism and its environment.
True or False: Respiration occurs only in animals.
False
Fill in the blank: The process of breaking down glucose to release energy is known as __________.
cellular respiration
What are the two main types of respiration?
Aerobic respiration and anaerobic respiration.
Which type of respiration requires oxygen?
Aerobic respiration.
What is the main byproduct of aerobic respiration?
Carbon dioxide and water.
In which organelle does aerobic respiration primarily occur?
Mitochondria.
What is the chemical equation for aerobic respiration?
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy.
True or False: Anaerobic respiration produces more energy than aerobic respiration.
False
What is the primary energy currency of cells produced during respiration?
ATP (adenosine triphosphate).
What is lactic acid fermentation?
A type of anaerobic respiration that occurs in muscle cells during intense exercise.
Which organisms primarily use alcoholic fermentation?
Yeasts.
True or False: Respiration is a one-step process.
False
What is the role of the respiratory system in animals?
To facilitate the exchange of gases between the body and the environment.
Name the main structures of the human respiratory system.
Nasal cavity, pharynx, larynx, trachea, bronchi, lungs, and alveoli.
What is the function of alveoli?
To provide a large surface area for gas exchange.
Fill in the blank: The diaphragm is a muscle that aids in __________.
breathing.
What is the primary gas inhaled during respiration?
Oxygen.
How does carbon dioxide affect blood pH?
Increased levels of carbon dioxide lower blood pH, making it more acidic.
What is the role of hemoglobin in respiration?
To transport oxygen from the lungs to the body’s tissues.
True or False: All living organisms perform respiration.
True
What is the term for the process of breathing in?
Inhalation.
What is the term for the process of breathing out?
Exhalation.
What is the main purpose of the nasal cavity in respiration?
To filter, warm, and humidify the air before it enters the lungs.
What is the role of cilia in the respiratory tract?
To trap and move particles out of the airways.
Fill in the blank: The exchange of gases in the lungs occurs in the __________.
alveoli.
