Biology: Respiration

____________ = inspiration + expiration

_________ is the exchange of gas between an organism and its environment.

A respiratory surface must have:

• Dry environment

• Large surface area

• Moist environment

• B only

• B and C

Which of the following statements is CORRECT?

• In exhalation, air pressure increases to force carbon dioxide out.

• In exhalation, air pressure increases to force oxygen out.

• In exhalation, air pressure decreases to force carbon dioxide out.

• In exhalation, air pressure decreases to force oxygen out.

• In exhalation, the diaphragm moves down, relaxing.

________ respiration = moving air from the capillaries to the body cells.

True/False: The air that we inhale contains mostly oxygen.

• True

• False

Which of the following is CORRECT regarding the respiratory system?

• It has capillaries that cool outgoing air.

• It is lined with mucous to trap oxygen..

• It is lined with cilia which help to direct air into the lungs.

• Sneezing/Coughing helps remove foreign particles from the body.

• A and D

Which of the following is INCORRECT regarding the lungs?

• Lungs are soft, spongy organs.

• Lungs are located in the thoracic cavity.

• Lungs are located in the abdominal cavity.

• The ribcage prevents water loss from the lungs.

• Lungs have a moist respiratory surface that allows oxygyen to be dissolved in water.

Which of the following is INCORRECT regarding inhalation?

• Rib cage lifts upwards

• Lungs expand

• Intercostals muscles contract

• Diaphragm moves down

• Air pressure increases

TV + IRV + ERV = ?

• RV

• TLC

• VC

• TLC - TV

• None of the above

Which of the following is INCORRECT?

• RV: "dead air"

• TLC: maximum volume of air that can be held in lungs & passage ways.

• ERV: additional volume of air moved out beyond tidal exhalation.

• TV: maximum amount of air that can be exhaled after a maximum inhalation.

• None of the above are incorrect.