Respiration in Organisms

Organisms respiring in the absence of oxygen are called ____________.

When you breathe, your lungs take in ___ and remove ___.

• air/oxygen

• oxygen/carbon dioxide

• carbon dioxide/waste

• waste/air

What is the organ "x"?

• Heart

• Lungs

• Diaphragm

• Trachea

State True or False
Gills take in oxygen from the water while lungs take in oxygen from the air.

• True
• False

Which equation shows the reaction for anaerobic respiration?

• carbon dioxide + water --> glucose and oxygen

• glucose + Oxygen --> lactic acid and energy

• glucose + oxygen --> carbon dioxide and water and energy

• glucose --> lactic acid and energy

Which of the following statements is false?

• Earthworms breathe through their moist skin

• Cockroach takes in air through tiny air tubes called stomata

• Fish take in oxygen dissolved in water through their gills

• The exchange of gases in plants takes place by diffusion.

Earthworms skin is

• moist and slimy

• moist and rough

• rough and slippery

• rough and slimy

In the cells Oxygen is used to break down

• glucose into carbon di oxide

• Glucose into carbon di oxide and water

• water into carbon di oxide

• carbon di oxide into water

During heavy exercise when supply of oxygen to our muscles is insufficient food breakdown is by

• anaerobic respiration

• aerobic respiration

• cellular respiration

Small openings on the side of the cockroaches body is called as

• Trachea

• Spiracles

• Glucose

• None