Biology: Respiratory System

Question 1

respirastory track

Answer 1

conudction passageways carrying air to and from alveoli

Question 2

upper respiratory passages

Answer 2

filter and humidify incoming air

Question 3

lower passages

Answer 3

include delicate conductoin passages and alveolar exchange surfaces

Question 4

mucus

Answer 4

protects delicate lower respiratory track by filtering out dust dirt and pathogens

Question 5

what happens to mucus after its filtered

Answer 5

removed from body or sent to the stomach for the stomach acid to destroy pathogens

Question 6

internal respiration

Answer 6

within cells, cellular respiration

Question 7

external respiration

Answer 7

movement of air and gasses

Question 8

aerobic respiration

Answer 8

with oxygen

C6H12O6 + 6O2 -> 6CO2 + 6H2O + 36 ATP

Question 9

anaerobic respiration

Answer 9

without oxygen

C6H12O6 -> 2CO2 +2C2H5OH + 2ATP

Question 10

What does external respiration include

Answer 10

breathing air moving between atomposphere and lungs
gasses exhcanged between the lungs and blood
movement of gasses between lungs and tissues

Question 11

4 parts in Respiration process

Answer 11

pulmonary ventilation
pulmonary diffusion
blood and gas transport
gas and tissue transport

Question 12

non respiratory functions of the respiratory system 6

Answer 12

provides a route for lost water
enhances venous return
maintains normal acid-base balance
vocalizations
defends against inhaled foreign matter
takes part in smell

Question 13

what is the passageway air takes to go through the respiratory system

Answer 13

nasal passages
pharynx
larynx
trachea
bronchi
bronchioles
alveoli

Question 14

where is the voice box located

Answer 14

larynx

Question 15

alveoli

Answer 15

thin-wallled single celled inflatable sacs where gas exchange is occurred

Question 16

where are the lungs engaged

Answer 16

thoracic cavity

Question 17

diaphragm

Answer 17

skeletal muscle used for breathing

Question 18

intra-pleural pressure

Answer 18

pressure in the alveoli

4 units below the atmospheric pressure

Question 19

how does air move into the lungs

Answer 19

pressure gradient

Question 20

what happens when respiratory system contracts and relaxes

Answer 20

contracts air comes in

relaxes air goes out

Question 21

what are the two factors that affect ventilation rate and depth

Answer 21

degree of contraction of breathing muscles

opening of the airways

Question 22

how does hemoglobin transport blood

Answer 22

combines with oxygen to form oxyhemoglobin and brings to tissue cells and dissociates back into hemoglobin

Question 23

how is CO2 transported

three ways

Answer 23

dissolved in the blood
bound to hemoglobin
as buffered bi-carbonate ion (carbonic acid)