The role of molecular oxygen in photosynthesis. Introduction: Photosynthesis is a process in which solar energy is used for the formation of chemical energy that is glucose from the carbon dioxide and water. This process takes place in the thylakoid membrane of chloroplast. This thylakoid membrane contains two types of photosystem units: PS I that absorb 700 nm of light and PS II that absorb 680 nm of light. Electron transport occurs from photosystem II. When the light of 680 nm strikes on photosystem II, the water molecules present near the photosystem II splits into hydrogen ion (2H+) and evolve as oxygen gas.

Question

a. What percentage of a drug is eliminated after 4 half-lives? Please round to the nearest percent. b. What will happen to elimination of the drug in the previous question if the system is saturated? explain and show any math involved

Answer 1

Question

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 9.4, Problem 1C

Summary Introduction

To determine: The role of molecular oxygen in photosynthesis.

Introduction: Photosynthesis is a process in which solar energy is used for the formation of chemical energy that is glucose from the carbon dioxide and water. This process takes place in the thylakoid membrane of chloroplast. This thylakoid membrane contains two types of photosystem units: PS I that absorb 700 nm of light and PS II that absorb 680 nm of light. Electron transport occurs from photosystem II. When the light of 680 nm strikes on photosystem II, the water molecules present near the photosystem II splits into hydrogen ion (2H+) and evolve as oxygen gas.

Summary Introduction

To determine: The role of molecular oxygen in aerobic cellular respiration.

Introduction: Aerobic cellular respiration is the process by which energy is produced in a cell. Energy is released from the breakdown of glucose in cellular respiration that is used by the cell for performing various life processes. Mitochondria are considered as the powerhouses of the cell, which synthesizes energy in the form of ATP.

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a. What percentage of a drug is eliminated after 4 half-lives? Please round to the nearest percent. b. What will happen to elimination of the drug in the previous question if the system is saturated? explain and show any math involved

If you wanted to reduce the difference between peak and trough levels that occur with repeated administration of a drug, how would you adjust the dose and dose interval without changing the plateau concentration (plateau is the average of peak and trough levels)? Select your answers for both dose and interval. Hint: It may be helpful to think about this problem using an example such as food. How would you eat if you wanted to maintain very steady hunger/satiety levels without changing your total caloric intake? Options: A. Dose; Increase dose B. Dose; Decrease dose C. Dose; Do not change dose D. Interval; Increase the interval between doses (give the drug less frequently) E. Interval; Decrease the interval between doses (give the drug more frequently) F. Interval; Do not change the interval

What percentage of a drug is eliminated after 4 half-lives? Please round to the nearest percent. Show the math

Answer 2

Question

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 9.4, Problem 1C

Summary Introduction

To determine: The role of molecular oxygen in photosynthesis.

Introduction: Photosynthesis is a process in which solar energy is used for the formation of chemical energy that is glucose from the carbon dioxide and water. This process takes place in the thylakoid membrane of chloroplast. This thylakoid membrane contains two types of photosystem units: PS I that absorb 700 nm of light and PS II that absorb 680 nm of light. Electron transport occurs from photosystem II. When the light of 680 nm strikes on photosystem II, the water molecules present near the photosystem II splits into hydrogen ion (2H+) and evolve as oxygen gas.

Summary Introduction

To determine: The role of molecular oxygen in aerobic cellular respiration.

Introduction: Aerobic cellular respiration is the process by which energy is produced in a cell. Energy is released from the breakdown of glucose in cellular respiration that is used by the cell for performing various life processes. Mitochondria are considered as the powerhouses of the cell, which synthesizes energy in the form of ATP.

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Answer 3

Question

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 9.4, Problem 1C

Summary Introduction

To determine: The role of molecular oxygen in photosynthesis.

Introduction: Photosynthesis is a process in which solar energy is used for the formation of chemical energy that is glucose from the carbon dioxide and water. This process takes place in the thylakoid membrane of chloroplast. This thylakoid membrane contains two types of photosystem units: PS I that absorb 700 nm of light and PS II that absorb 680 nm of light. Electron transport occurs from photosystem II. When the light of 680 nm strikes on photosystem II, the water molecules present near the photosystem II splits into hydrogen ion (2H+) and evolve as oxygen gas.

Summary Introduction

To determine: The role of molecular oxygen in aerobic cellular respiration.

Introduction: Aerobic cellular respiration is the process by which energy is produced in a cell. Energy is released from the breakdown of glucose in cellular respiration that is used by the cell for performing various life processes. Mitochondria are considered as the powerhouses of the cell, which synthesizes energy in the form of ATP.

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Answer 4

Question

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 9.4, Problem 1C

Summary Introduction