WorksheetsCHAPTER 8: RESPIRATORY SYSTEM IN HUMAN AND ANIMALS (PART 1)
Total questions: 25
Worksheet time: 16mins
Which structure is involved in the breathing of a frog ?
Rib cage
Diaphragm
Intercostal Muscle
Buccopharyngeal cavity
What process occurs between alveolus
and blood capillary during gaseous
exchange?
Osmosis
Facilitated diffusion
Active transport
Diffusion
Which structure A, B, C and D gaseous exchange occur?
A
B
C
D
State two (2) structural adaptations of alveoli for gaseous exchange.
One-cell thick
Surrounded by a large network of blood capillary
Dry surface
Large surface area per volume
Which of the following structure
increases the efficiency of the fish’s
gills as a respiratory organ?
A Blood capillary
B Operculum
C Lamellae
D Gill arch
What is T ?
Trachea
Tracheole
Spiracle
Muscle
Insects such as grasshopper have ________________ that can speeds up the movement of gases.
air sacs
hearts
chitin
diaphragm
The _____________ is to protect the gills in the fish.
operculum
mouth cavity
scale
fin
What are the respiratory organs of amphibians like frogs?
Lungs
Moist skin
Gills
Bucco-pharyngeal
What is the respiratory system for insects?
Tracheal system
Lungs system
Bucco-pharyngeal
Gills
The opening that is controlled by the valve found on the body of insects is known as .................
stoma
pore
hydathode
spiracles
Which of the following has the highest total surface area for gases exchange in gill?
Lamella
Gill arch
Gill rakers
Filament
What is the advantage of the direction of water flow against the direction of blood flow in the gill blood capillary?
Increase osmosis
Increase gases exchange
increase excretion of salt
increase blood circulation
What is the role of having a lot of alveoli?
Increase total surface area per volume ratio
Increase moisture
Increase total surface area
Increase the thickness
Which of the following shows what happens to the thoracic cavity when air rushes into the lungs?
decrease in volume
deflates
expands
relaxes
Which of the following is true for exhalation?
rib cage moves up and out
rib cage moves down and out
Diaphragm relaxes and curves upwards
Diaphragm relaxes and flattens
What are the main muscles of inhalation?
The diaphragm and intercostal muscles
The diaphragm and the abdominal muscles
The smooth muscles and abdominal muscles
The diaphragm and heart muscles
What happens when the intercostals contract during inhalation?
The diaphragm relaxes
The ribs are elevated
Pressure in the lungs increases
The size of the thoracic cavity decreases
Diagram shows a model of human respiratory system. K represents....
lung
rib cage
diaphragm
thoracic cavity
Epiglottis is the structure that opens or closes the trachea.
TRUE
FALSE
Exchange of gases in the body cells occurs in the bronchioles.
TRUE
FALSE
What is X?
Trachea
Bronchus
Bronchiole
Epiglottis
Name structure Y.
Trachea
Bronchus
Bronchiole
Alveolus
Which of the structures of human respiratory system NOT involve in the air passage in the breathing mechanism?
Trachea
Intercostal muscle
Rib
Larynx
