8093862
Descripción
Test por Daniel Brand, actualizado hace más de 1 año
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Creado por Daniel Brand
hace alrededor de 7 años
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Pregunta 1
Pregunta
As their main gas exchange organ, fish use [blank_start]gills[blank_end]. Their structure consists of [blank_start]an arch[blank_end] from which [blank_start]filaments[blank_end] project. Each filament contains many [blank_start]lamellae[blank_end], through which capillaries run. This is the site at which gas exchange takes place. The blood flows through the capillaries in the [blank_start]opposite[blank_end] direction as/to the water that flows through the gills, creating a [blank_start]countercurrent[blank_end] exchange. This ensures there is a favourable gradient in [blank_start]water potential[blank_end] between the water and the blood.
Respuesta
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gills
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lungs
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spiracles
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capillaries
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an arch
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a loop
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a spiral
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filaments
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filaments
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arches
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alveoli
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spiracles
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lamellae
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grana
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stomata
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opposite
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same
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countercurrent
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current
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anti-current
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monocurrent
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water potential
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osmotic pressure
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oncotic pressure
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water flow
Pregunta 2
Pregunta
The structure that covers the gills of a fish is called the [blank_start]operculum[blank_end].
Respuesta
-
operculum
Pregunta 3
Pregunta
Label the diagram of the insect's gas exchange system, labelling answers in plural form.
Respuesta
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spiracles
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air sacs
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tracheae
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tracheoles
Pregunta 4
Pregunta
Which of the following correctly explain how gas moves dynamically throughout the insect's gas exchange system? Check all that apply.
Respuesta
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Gases move down a concentration gradient towards respiring tissue.
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Muscle movements squeeze and 'pump' air throughout the tracheoles and tracheae.
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Lactate in respiring tissues draws in water, which is followed by gas.
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Insects have rib-like cartilage structures that rotate, acting like a spiral that pumps air.
Pregunta 5
Pregunta
Spiracles constantly expose the inside of an insect's gas exchange system to the outside world.
Respuesta
- True
- False
Pregunta 6
Pregunta
Which of the following are adaptations of spiracles to gas exchange?
Respuesta
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Lots of mitochondria to generate ATP
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Small surface area:volume ratio
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Large surface area:volume ratio
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Waterproof
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Secrete surfactant to dissolve gases
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