Biology: Respiration

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4. A respiratory surface must have:

Dry environment

Large surface area

Moist environment

B only

B and C

5. 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.

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

True

False

8. 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

9. 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.

10. Which of the following is INCORRECT regarding inhalation?

Rib cage lifts upwards

Lungs expand

Intercostals muscles contract

Diaphragm moves down

Air pressure increases

11. TV + IRV + ERV = ?

RV

TLC

VC

TLC - TV

None of the above

12. 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.