Insect Gas Exchange Quiz

What is the main objective of the tracheal system in insects?

• To supply oxygen directly to the muscle tissues

• To transport nutrients

• To control water loss

• To regulate body temperature

Which part of the insect is responsible for drawing air into and out of the trachea via the spiracles?

• Abdomen

• Thorax

• Wings

• Head

What is the function of the spiracles in insects?

• To trap humid air

• To regulate body temperature

• To transport oxygen to the muscle tissues

• To minimize water loss

Why can't insects grow to a larger size according to the limitations of the tracheal system?

What is the purpose of the air sacs along the trachea in some insects?

• To minimize water loss

• To trap humid air

• To store a small amount of oxygen

• To regulate body temperature

What is the action taken by insects to minimize water loss through the spiracles?

• Opening spiracles frequently

• Closing spiracles as often as possible

• Increasing ventilation through spiracles

• Removing hairs around the spiracles

What is the main method used by insects to ventilate their body?

• Pumping the wings in and out

• Pumping the head in and out

• Pumping the abdomen in and out

• Pumping the thorax in and out

What is the purpose of the trachea in the insect's body?

• To store excess oxygen

• To regulate water balance

• To supply oxygen directly to the muscle tissues

• To transport nutrients