Sharks live in marine (saltwater) habitats and are osmoconformers. Based on this information which of the following is/are true (select all that apply): A. Sharks have tissues/body fluids that are isoosmotic relative to the environment B. Sharks have tissues/body fluids that are hypoosmotic relative to the environment C. Sharks devote considerable energy to osmoregulation D. Sharks do not devote much energy to osmoregulation

Sharks live in marine (saltwater) habitats and are osmoconformers. Based on this information which of the following is/are true (select all that apply): A. Sharks have tissues/body fluids that are isoosmotic relative to the environment B. Sharks have tissues/body fluids that are hypoosmotic relative to the environment C. Sharks devote considerable energy to osmoregulation D. Sharks do not devote much energy to osmoregulation

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter48: Regulating The Internal Environment

Section: Chapter Questions

Problem 1TYK: Which of the following statements about osmoregulation is true? a. In freshwater invertebrates,...

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a) The process by which salmon maintain an internal balance is called osmoregulation. Describe how salmon achieve osmoregulation as they migrate between fresh and saltwater environments. b) Describe what happens to salmon in fresh water. What direction do solutes tend to move via diffusion? What direction does water tend to move via osmosis?
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?…
Which of the following statements about osmoregulation is true? a. In freshwater invertebrates, salts move out of the body into the water because the animal is hypoosmotic to the water. b. A marine teleost has to fight gaining water because it is isoosmotic to the sea. c. Most land animals are osmoconformers. d. Vertebrates are usually osmoregulators. e. Terrestrial animals can regulate their osmolarity withoutexpending energy.
Some animals are osmoconformers, meaning that they maintain the tonicity/osmolarity of their body fluids equal to that of the external environment. Hydroids, a type of cnidarian, are osmoconformers. But they don't move and thus are adapted to the environment they live in. A) What would happen if you take a marine hydroid and transfer it into a freshwater aquarium? B) What would happen if you take a freshwater hydroid and transfer it into a saltwater aquarium? C) Sharks are extraordinary osmoconformers. Bull sharks store urea in their tissues and use it to match the tonicity of their tissues to that of the surrounding environment. Some sharks can move from saltwater to freshwater, hypothesize what changes will sharks do in order to adjust when moving from saltwater to freshwater and vice versa. Explain your answer in terms of tonicity and specify the direction of water movement and urea concentration.
Describe the function of major hormones (steroid hormones, epinephrine, insulin & glucagon) and major endocrine glands (hypothalamus, pituitary, adrenal glands, pancreas) and how they regulate metabolism. Explain the organs and tissues different groups use for osmoregulation including how the countercurrent exchange in the loop of Henle allows mammals to recycle water and ions. Explain how organisms control osmolarity, and how their particular strategies depend on the environment they inhabit.
Which of the following is TRUE of sharks and other osmoconformers? A. The solute concentration inside the organism is maintained at a higher level by active import of solutes. B. The total solute concentration is the same inside and outside of the organism C. The solute concentration inside the organism is maintained at a lower level by active export of solutes. D. The NaCl concentration is the same inside and outside of the organism
What are the osmotic challenges faced by marine animals like fish? Describe how they cope with these challenges to maintain solute and water balance in their tissues.
In a freshwater fish, a. water moves into the fish by osmosis.b. ions diffuse into the fish.c. urine has a high solute concentration.d. cells pump ions out of the fish.
If osmoregulatory hypotonic fish species are generally bony fish and osmoregulatory hypertonic fish species are generally soft and absorbent. Does it mean the reason for them being soft or bony from an evolutionary standpoint gives reason to why they are formed that way? Basically what I'm trying to ask is whether they are hypotonic or hypertonic, does it have a correlation to why they are bony or muscular like in structure.
A "red-hot" bacteria infection of the intestinal tract irritates cell and interface with digestion. Such a condition is often accompanied by diarrhea, which causes loss of body water. On the basis of what you have learned about osmotic water flows, explain why diarrhea my occur.
Most marine invertebrates are osmotic conformers. How does their body fluid differ from that of sharks and rays, which are also in near osmotic equilibrium with their environment?
Here is a chloride cell in the gill epithelium of a fish. For reference, NKA = Na+/K+ ATPaseNKCC = Na+/K+/Cl- cotransporter. What type of fish would you expect to see this type of chloride cell? A. fresh water fish B. salt water fish C. either