Quiz
Gaseous Exchange { 5 }
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Perguntas do quiz (18)
1To support ___, cells take in oxygen and give out carbon dioxide by a process called ___ .
- Aaerobic respiration | cellular respiration
- Baerobic respiration | gaseous exchange
- Canaerobic respiration | gaseous exchange
2Gaseous exchange -the exchange of gases between an organism and its environment- takes place by..
- Adiffusion
- Bosmosis
- Cfacilitated diffusion
- Dactive transport
- Ebulk transport
3Highlight the factors that determine the rate of diffusion in living things.
- Athe amount of oxygen available in the blood stream only
- Bthe amount of carbon dioxide in the body
- Cthe size of the surface area available for gaseous exchange
- Dthe difference in concentration
- Ethe length of an organism
- Fthe length of the diffusion path
- Gthe size of a living thing only
4The shorter the diffusion path, the lower the rate of diffusion -so the respiratory surface must be as thin as possible.
- AVerdadeiro
- BFalso
5Many multicellular animals have very many of their cells too far away from the body surface to receive enough oxygen by diffusion alone.
- AVerdadeiro
- BFalso
6Active organisms have an ___ metabolic rate and so require more___ in their cells; mammals have specialised organs for gaseous exchange.
- Aincreased | oxygen
- Bdecreased | oxygen
- Cincreased | carbon dioxide
- Ddecreased | carbon dioxide
7In mammals the respiratory surface consists of..
- Agut
- Bcapillaries
- Clungs
- Darteries
8Since the lungs are in a protective position inside the ___, air must be brought to the respiratory surface and so the lungs must be ___ .
- Achest | freed
- Boesophagus | cushioned
- Ctrachea | ventilated
- Dthorax | ventilated
9A ventilation system is..
- Aan enzyme-activated mechanism that moves air in and out of the lungs efficiently, maintaining the concentration gradient for diffusion.
- Ba pumping mechanism that moves air in and out of the lungs efficiently, maintaining the concentration gradient for diffusion.
- Ca pumping mechanism that moves air into the lungs efficiently, maintaining the concentration gradient for diffusion.
- Da pumping mechanism that moves air out of the lungs efficiently and maintains the concentration gradient for facilitated diffusion.
10The lungs are housed in the thorax, an ___ formed by the ___ and its ___ with a domed floor, the ___ .
- Aairtight | rib-cage | intercostal muscles | diaphragm
- Bimpervious | rib-cage | intercostal muscles | abdomen
- Cupright | rib-cage | muscles | diaphragm
- Dairtight | ribs | intercostal muscles | stomach
11The internal surfaces of the thorax are lined by the..
- Afinger-like projections, villi
- Bdouble membrane
- Cepidural membrane
- Dpleural membrane
- Enuclear membrane
12This membrane secretes ___ which is a lubricating liquid derived from ___ and protects the lungs from friction during breathing movements.
- Aserotonin | platelets
- Bpleural fluid | blood plasma
- Cpleural fluid | platelets
- Doxytocin | platelets
13The ___ work together to prevent food from entering the __ which which connects the lungs to the ___ at the rear of the mouth and runs beside the ___ .
- Aglottis and epiglottis | trachea | pharynx | oesophagus
- Bglottis and cartilaginous flap | trachea | pharynx | oesophagus
- Cglottis and epiglottis | oesophagus | pharynx | trachea
- Dglottis and epiglottis | pharynx | trachea | oesophagus
14Air is drawn into the alveoli when the air pressure is lower in the lungs than in the atmosphere; it is then forced out when the situation reverses.
- AVerdadeiro
- BFalso
15The volume of the thorax is decreased when the ribs move up and out an the diaphragm dome is lowered.
- AVerdadeiro
- BFalso
16The volume of the thorax is decreased by the diaphragm muscles relaxing and becoming more dome shaped by pressure from below; the ribs now move in and down as the intercostal muscles relax.
- AVerdadeiro
- BFalso
17The lung tissue consists of the alveoli, arranged in clusters and served by a bronchiole. They have ____ and a ___ system wraps around the clusters of them and is connected to the ___ and is drained by a branch of the ___ .
- Aintegral walls | capillary | pulmonary artery | pulmonary vein
- Belastic connective tissue | capillary | pulmonary artery | pulmonary vein
- Celastic connective tissue | capillary | pulmonary vein | pulmonary artery
18Highlight the advantageous features of alveoli.
- Athick walls -prevent pathogens from crossing into blood stream
- BLarge surface area
- Conly artery supply to alveoli
- DThin walls -short diffusion path
- Ecompact small surface area
- Fcapillary supply to alveoli
- Gsurface film of moisture
Informações
- Descrição
- Chapter 7, Part 5.
- Autor
- cloud.berry
- Idioma
- English
- Visualizações
- 78
- Etiquetas
- Avaliação
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