a) In what direction are ions actively transported across the gills of euryhaline fish when they are in freshwater versus salt water? In freshwater: alemsbomes90 (into body or out of body) In salt water: (into body or out of body) b) Briefly explain why active transport is required in these cases.
a) In what direction are ions actively transported across the gills of euryhaline fish when they are in freshwater versus salt water? In freshwater: alemsbomes90 (into body or out of body) In salt water: (into body or out of body) b) Briefly explain why active transport is required in these cases.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:10) Osmoregulation refers to the ability of an organism to maintain homeostasis with respect to
the solute concentration of their bodies.
Euryhaline fish are able to live in both fresh water and salt water at different points of their life.
In order to osmoregulate in both environments, one physiological change that occurs in these fish
is the direction in which they actively transport ions across their gills.
a) In what direction are ions actively transported across the gills of euryhaline fish when they are
in freshwater versus salt water?
In freshwater:
(into body or out of body)
In salt water:
(into body or out of body)
b) Briefly explain why active transport is required in these cases.
121
11) The table below compares and contrasts carrier protein pumps with clathrin-dependent
receptor-mediated endocytosis. Fill in the empty spaces of the table with the appropriate ans
Clathrin-
Carrier protein
dependent
receptor mediated
endocytosis
pump
Involvement of multiple types of
proteins? (Yes/No)
Involvement of ATP? (Yes/No)
Involvement of dynamin? (Yes/No)
Membrane proteins involved are
specific for only a small number of
different types of substances? (Yes /No)
Possible direction of movement of
transported molecules (Into cell/Out of
cell/Both)
Requires formation of a vesicle?
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