Energy is necessary for all living organisms to perform their life processes. Living cells obtain energy in a different form and they also have the mechanisms to alter energy from one form to another form. Adenosine triphosphate (ATP) is known as the immediate “energy currency” of the cell and it is continually produced from adenosine diphosphate (ADP) and inorganic phosphate through cellular respiration or photosynthesis.

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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 7, Problem 6TYU

Summary Introduction

Introduction: Energy is necessary for all living organisms to perform their life processes. Living cells obtain energy in a different form and they also have the mechanisms to alter energy from one form to another form. Adenosine triphosphate (ATP) is known as the immediate “energy currency” of the cell and it is continually produced from adenosine diphosphate (ADP) and inorganic phosphate through cellular respiration or photosynthesis.

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A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.

With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin

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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 7, Problem 6TYU

Summary Introduction

Introduction: Energy is necessary for all living organisms to perform their life processes. Living cells obtain energy in a different form and they also have the mechanisms to alter energy from one form to another form. Adenosine triphosphate (ATP) is known as the immediate “energy currency” of the cell and it is continually produced from adenosine diphosphate (ADP) and inorganic phosphate through cellular respiration or photosynthesis.

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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 7, Problem 6TYU

Summary Introduction

Introduction: Energy is necessary for all living organisms to perform their life processes. Living cells obtain energy in a different form and they also have the mechanisms to alter energy from one form to another form. Adenosine triphosphate (ATP) is known as the immediate “energy currency” of the cell and it is continually produced from adenosine diphosphate (ADP) and inorganic phosphate through cellular respiration or photosynthesis.

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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 7, Problem 6TYU

Summary Introduction