Iron Is Biologically Important in the Transport of Oxygen by Red

question 38

Multiple Choice

Iron is biologically important in the transport of oxygen by red blood cells from the lungs to the various organs of the body.In the blood of an adult human,there are approximately 2.64 $\times$ 10¹³ red blood cells with a total of 2.90 g of iron.On the average,how many iron atoms are present in each red blood cell? (molar mass Fe = 55.85 g/mol)

• A)8.44 \(\times\) 10^-10
• B)1.18 \(\times\) 10⁹
• C)3.13 \(\times\) 10²²
• D)2.64 \(\times\) 10¹³
• E)6.14 \(\times\) 10^-2

Identify common causes and prevention strategies for childhood hearing impairment.

Describe the signs, symptoms, and causes of common childhood eye conditions, including cataracts and visual impairments.

Recognize characteristics indicative of possible visual impairments in children.

Understand the diagnosis and commonalities among trisomy conditions.

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Definitions:

Free Trade

The free trade of goods and services across nations without the application of restrictions like tariffs, duties, and quotas.

Tariff Revenue

The income that a government earns from imposing tariffs, which are taxes on imports or exports.

Domestic Price

The charge for goods or services inside a nation's boundaries, differing from prices found in the global or foreign marketplace.

Free Trade

An economic policy that allows imports and exports among member countries with no or low tariffs, quotas, or other barriers to trade.