What is the primary role of mitochondria in cells?

To release energy from glucose through aerobic respiration.

Which process is described by the equation: glucose + oxygen → carbon dioxide + water + energy?

Aerobic respiration

Riddle: I am a part of the blood that helps to stop bleeding and form clots. What am I?

Platelets

True or False: Respiration occurs only in the lungs of living organisms.

False. Respiration occurs in every cell of the body.

Fill in the blank: The air sacs in the lungs where gas exchange occurs are called ______.

Alveoli

Which type of respiration requires oxygen and produces carbon dioxide as a by-product?

Aerobic respiration

What is the function of hemoglobin in red blood cells?

To bind oxygen and transport it from the lungs to body tissues.

Fill in the blank: Blood plasma makes up about ______% of blood volume.

55

Which part of the respiratory system connects the mouth and nose to the lungs?

Trachea

True or False: The diaphragm contracts during exhalation to push air out of the lungs.

False. The diaphragm relaxes during exhalation.

Riddle: I help you breathe in and out, but I am not a muscle. What am I?

Lungs

What waste product is expelled from the body during respiration?

Carbon dioxide

Fill in the blank: The blood vessels that surround the alveoli are called ______.

Capillaries

Which type of blood cell is responsible for defending the body against infections?

White blood cells (Leukocytes)

What happens to intercostal muscles during inhalation?

They contract and lift the ribs upwards and outwards.