Which of the following structures is primarily responsible for gas exchange in the respiratory system?
Human Anatomy

Quiz
•
Biology
•
11th Grade
•
Hard
Shaikha Abdulaziz
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trachea
Bronchi
Aveoli
Larynx
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the main functions of the cardiovascular system?
Digestion and nutrient absorption
Oxygen and nutrient transport, waste removal
Hormone production and immune defense
Muscle contraction and nerve impulse transmission
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe the flow of blood through the heart, starting from the right atrium.
Right atrium → Right ventricle → Pulmonary veins → Lungs
Right atrium → Right ventricle → Pulmonary arteries → Lungs
Right atrium → Left ventricle → Aorta → Body
Right atrium → Left atrium → Aorta → Lungs
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of red blood cells in the cardiovascular system?
Clotting blood
Transporting oxygen and carbon dioxide
Fighting infections
Producing hormones
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does gas exchange occur in the alveoli?
Through active transport
By osmosis
By diffusion
Through the circulatory system
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the small intestine in digestion?
Storing waste
Absorbing nutrients
Producing digestive enzymes
Breaking down food mechanically
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which organ produces bile, and what is its role in digestion?
Pancreas; it digests carbohydrates
Stomach; it digests proteins
Liver; it emulsifies fats
Small intestine; it absorbs nutrients
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