Science: Biology, The Respiratory System Lets Learn: 1 Module 1

What is the respiratory system?

• The respiratory system consists of a set of organs and tissues and is responsible for digestion and nutrient absorption.

• The respiratory system consists of a set of tissues that circulates blood throughout the body.

• The respiratory system consists a set of organs is involved in the production of hormones.

• The respiratory system consists of a set of organs and tissues involved in the gas exchange of oxygen and carbon dioxide

The process of gas exchange is also called?

• Photosynthesis
• Combustion
• Fermentation
• External Respiration

• Breathing

What body part is primary responsible for gas exchange?

• lungs
• pharynx

• kidneys
• larynx

• trachea

What is the role of our respiratory system

• Remove waste gasses

• To circulate blood throughout the body.
• Maintain our oxygen supply

• To digest food and absorb nutrients.
• To regulate body temperature and maintain homeostasis.

Main function of the alveoli

• To store oxygen for the body
• The main function of the alveoli is to enable gas exchange.
• To produce carbon dioxide
• To filter blood before it reaches the heart

What is respiration?

• Respiration is the process of photosynthesis in plants.
• Respiration is the act of breathing in and out air only.
• Respiration is the exchange of oxygen and carbon dioxide in organisms

• Respiration is the method of digestion in animals.

Respiration can be divided into two parts:

What is cellular respiration?

• Cellular respiration is the process by which cells convert glucose from the food we consume into ATP

• Cellular respiration is the process of which cells convert oxygen into carbon dioxide and water molecules

• Cellular respiration occurs only in the presence of sunlight.
• Cellular respiration is the process of photosynthesis in plants.

What happnes to the diaphragm during inhalation?

• The diaphragm relaxes and moves upward.
• The diaphragm remains still during inhalation.
• The diaphragm expands and moves upward.
• The diaphragm contracts and moves downward.

What mechanism governs the gas exchange that occurs in the alveoli?

• Osmosis regulates the gas exchange in the alveoli.
• Active transport is responsible for gas exchange in the alveoli.
• Filtration controls the gas exchange process in the alveoli.
• Diffusion governs the gas exchange in the alveoli.