WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 23, Problem 2MC
Summary Introduction
Introduction:
Water is present in almost all components of the body, and plays a role in most reactions within the body.
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A change in ion (salt) concentrations in an animal’s body may result ina. altered membrane potentials that disrupt normal cell function.b. disruption of certain biochemical processes that occur in the cell.c. movement of water between fluid compartments.d. a and b only.e. a, b, and c.
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.
Which of the following is not a part of animal cells' ECM?
Select one:
a. cellulose
b. elastin
c. Proteoglycans such as glycosaminoglycan (GAGS)
d. Collagen
e. Fibronectin
OO
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WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
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- The figure at right illustrates the relationship between body fluid osmotic concentration and environment osmotic concentration for several aquatic animals. In seawater (ambient osmotic pressure = 1000 mOsm), the shrimp is best described as... A. A hypo-ionic regulator B. A hyperosmotic conformer C. A hypo-osmotic regulator D. A euryhaline conformer E. None of the above Blood osmotic pressure (mOsm) 1500 1000 500 0 0 Green crab Mussel Shrimp 500 1000 Ambient osmotic pressure (mOsm) 1500arrow_forward1. How do animals transport materials inside their bodies?2. What structures are necessary in animal transport?3. State the function of the following components of animal transport: heart, blood and blood vessels.arrow_forward1. Explain the three components of homeostatic control. Also, compare and contrast negative vs. positive feedback mechanisms and give an example of each type and explain. 2. Clearly explain how hydrogen bonds are formed using water as an example. [Hint: Include electron structure of water and include what relative electronegativities are and how they work to develop partial +/- charges.] 3. Define osmosis and characterize isotonic, hypertonic and hypotonic solutions and what happens to the cell(s) when placed into these solutions and the direction of water movement if any. Also, state which tonicity is optimal for animal cells and why. 4. Describe in detail how the sodium/potassium pump works and give at least one example of why it is important in the body.arrow_forward
- 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?arrow_forwardI. Metabolism is the elimination of metabolic wastes including nitrogenous wastes produced from the breakdown of proteins. II. Diffusion is the movement of water from a region of higher osmolarity to a region of lower osmolarity across a selectively permeable membrane. A. If the two statements are both correct B. If the first statement is correct while the second one is not C. If the second statement is correct while the first one is not D. If the two statements are both incorrect I. The functional units of the kidney where urine is formed. II. Kidneys serve as specialized organs for osmoregulation and excretion A. If the two statements are both correct B. If the first statement is correct while the second one is not C. If the second statement is correct while the first one is not D. If the two statements are both incorrectarrow_forwardAcross 2. shape of the cells that lines the kidney tubules 5. specialization found on distal ends of cells lining the epididymis 8. Epithelial tissue that lines the urinary bladder is known as. 9. Anchoring junctions link the tissues. of cells adjacent to each and to underlying 10. Gap junctions are also called as Down 1. An epithelium with more than one layer of cells 3. - junction link epithelial cells to form an impermeable barrier 4. Dominant cells on the surface of the skin 6. epithelium that lines blood vessles 7. Epithelial cells are grouped into secreted production to allow focused producion of aarrow_forward
- In order to move flagella or cilia, ATP is required for the dynein head to try to move along: O radial spokes the A tubule O the central doublet O basal bodies O the B tubulearrow_forwardRead this article (http://openstaxcollege.org/l/saltwater) for an explanation of the effect of seawater on humans. What effect does drinking seawater have on the body?arrow_forward1. Which of the following statements about water is incorrect? A. It is distributed between intracellular and extracellular compartments. B. It provides a medium for movement of molecules into and throughout cellular compartments. C. It responds to the input of heat by increasing the extent of hydrogen bonding and to cooling by decreasing the bonding between water molecules. D. To achieve equal osmolality on both sides of the membrane, water moves from a compartment with a low concentration of solutes to one with a higher concentration. 2. Which of the following statements about buffer is incorrect? A. Buffers consist of a weak acid and its conjugate base. B. Cause a solution to resist changes in pH when hydrogen ions or hydroxide ions are added. C. The closer the pH of the buffer to the pKa of the weak acid, the lesser the buffer capacity. D. The greater the concentration of the weak acid and its conjugate base, the greater the buffer capacity. 3. Phosphate is one of the major buffer…arrow_forward
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