Marine Ecosystem Gas Exchange Quiz
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Questions and Answers

How do osmoconformers maintain the osmolarity of their body fluids in relation to seawater?

They allow the concentration of salts and other solutes inside their bodies to match that of the surrounding seawater.

What factors play significant roles in determining seawater density?

Temperature and salinity.

How does pressure affect seawater density?

Increasing pressure at greater depths causes a slight increase in density.

What regulates seawater temperature primarily?

<p>Solar energy input and the mixing of other water.</p> Signup and view all the answers

What type of pigment captures light energy necessary for photosynthesis?

<p>Photosynthetic pigments.</p> Signup and view all the answers

What devices have been used to directly record temperature with an accuracy of 0.001°C?

<p>Thermistors.</p> Signup and view all the answers

Explain the impact of increasing pressure on the solubility of gases in water.

<p>Increasing pressure leads to higher solubility of gases in water.</p> Signup and view all the answers

How does decreasing temperature affect the solubility of gases in water?

<p>Lower temperature increases the solubility of gases in water.</p> Signup and view all the answers

Describe the relationship between salinity and the solubility of gases in water.

<p>Lower salinity increases the solubility of gases in water.</p> Signup and view all the answers

What is meant by the term 'saturation' in the context of dissolved gases in water?

<p>Saturation refers to the state where the maximum amount of gas is dissolved in water.</p> Signup and view all the answers

Explain how the transparency of seawater is related to the process of photosynthesis.

<p>The transparency of seawater allows sunlight to penetrate, which is essential for photosynthetic organisms to grow.</p> Signup and view all the answers

What impact does the presence of suspended and dissolved materials have on the transparency of water?

<p>The transparency of water decreases as the amount of suspended and dissolved materials increases.</p> Signup and view all the answers

How does the formation of sea ice impact the salinity of seawater?

<p>Increases</p> Signup and view all the answers

What are the three most common ions found in seawater?

<p>Chloride, sodium, potassium</p> Signup and view all the answers

Explain how diffusion and osmosis impact the movement of molecules in a solution.

<p>Molecules move from areas of high concentration to areas of low concentration</p> Signup and view all the answers

What is the overall impact of the high specific heat of water on temperature changes in the ocean?

<p>Moderates temperature changes</p> Signup and view all the answers

How do hydrothermal vents contribute to the salinity of the ocean?

<p>Release dissolved materials</p> Signup and view all the answers

What is the impact of the solubility of gases in seawater?

<p>Affects the dissolved gases content</p> Signup and view all the answers

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