The abbreviation for NEP is net ecosystem production. The NEP is defined as the difference between the gross primary production and the respiration of the total ecosystem. It signifies the total amount of organic compound present in an ecosystem. The organic compound is available for storage, for non-biological oxidation to carbon dioxide through fire, or for export as organic carbon.

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 42.2, Problem 3CC

Summary Introduction

The abbreviation for NEP is net ecosystem production. The NEP is defined as the difference between the gross primary production and the respiration of the total ecosystem. It signifies the total amount of organic compound present in an ecosystem. The organic compound is available for storage, for non-biological oxidation to carbon dioxide through fire, or for export as organic carbon.

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3. A promising new drug is being evaluated in human trials. Based on preliminary human tests, this drug is most effective when plasma levels exceed 30 mg/L. Measurements from preliminary tests indicate the following human pharmacokinetic parameter values: t1/2,elim = 4.6hr, t1/2,abs = 0.34hr, VD = 0.29 L/kg, Foral = 72%. Based on these parameters, estimate the following if a 49 kg woman were to receive a 1000mg oral dose of this drug: (a) Estimate the plasma concentration of the drug at 1hr, 6 hr, and 20hr after taking the drug ( Concentration estimate) (b) Estimate the time for maximum plasma concentration (tmax). (c) Estimate the maximum plasma concentration (Cmax). (d) Estimate the time at which the plasma level first rises above 30 mg/L. (Note this is a trial and error problem where you must guess a time, plug it into the concentration equation, and determine if it is close to 30 mg/L. Hint: based on part (a) it should be apparent that the answer is less than 1hr.) (e)…

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 42.2, Problem 3CC

Summary Introduction

The abbreviation for NEP is net ecosystem production. The NEP is defined as the difference between the gross primary production and the respiration of the total ecosystem. It signifies the total amount of organic compound present in an ecosystem. The organic compound is available for storage, for non-biological oxidation to carbon dioxide through fire, or for export as organic carbon.

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Answer 3

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 42.2, Problem 3CC

Summary Introduction

The abbreviation for NEP is net ecosystem production. The NEP is defined as the difference between the gross primary production and the respiration of the total ecosystem. It signifies the total amount of organic compound present in an ecosystem. The organic compound is available for storage, for non-biological oxidation to carbon dioxide through fire, or for export as organic carbon.

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Answer 4

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 42.2, Problem 3CC

Summary Introduction