Question Detail

BIO 102 Mechanisms of Animal Respiration and Circulation Objective Question

Question

Which of the following describes the 'tracheoles' in an insect's respiratory system?
Options
A Muscular valves that open to the outside
B Blind-ended, water-filled compartments where oxygen reaches cells
Correct Answer
C Large primary tubes that connect directly to the heart
D Hair-like structures that filter dust from the air
Correct Answer

Option B is the correct answer.

Detailed Explanation

Tracheoles are the fine, water-filled branches of the tracheal system where oxygen is delivered to the cells.

Hint

They are the final branches of the respiratory tubes.

Question Info