The reason why amoeba doesn't need a respiratory system. Introduction: Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

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Answer 1

Question

Chapter 15, Problem 1SA

Summary Introduction

To analyze:

The reason why amoeba doesn't need a respiratory system.

Introduction:

Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Expert Solution & Answer

Explanation of Solution

Respiration in amoeba is aerobic and occurs through general body surface of the body by diffusion process. If the partial pressure of oxygen present in the surrounding is more than that of oxygen present in the body of amoeba, oxygen from surrounding diffuses into the body through plasmalemma and if the partial pressure of carbon dioxide in the body of amoeba is more than that of partial pressure of carbon dioxide in the surrounding, carbon dioxide diffuses out through plasmalemma into the surrounding. Since amoebas are tiny and microscopic, the rate of respiration through diffusion process is high enough to meet their metabolic needs. So amoeba does not require a respiratory system.

Conclusion

Amoebas are tiny cells. The rate of exchange gases including oxygen and carbon dioxide takes place through plasmalemma by diffusion process is enough to meet their metabolic requirements. So amoeba does not need a respiratory system.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…

Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:

Answer 2

Question

Chapter 15, Problem 1SA

Summary Introduction

To analyze:

The reason why amoeba doesn't need a respiratory system.

Introduction:

Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Expert Solution & Answer

Explanation of Solution

Respiration in amoeba is aerobic and occurs through general body surface of the body by diffusion process. If the partial pressure of oxygen present in the surrounding is more than that of oxygen present in the body of amoeba, oxygen from surrounding diffuses into the body through plasmalemma and if the partial pressure of carbon dioxide in the body of amoeba is more than that of partial pressure of carbon dioxide in the surrounding, carbon dioxide diffuses out through plasmalemma into the surrounding. Since amoebas are tiny and microscopic, the rate of respiration through diffusion process is high enough to meet their metabolic needs. So amoeba does not require a respiratory system.

Conclusion

Amoebas are tiny cells. The rate of exchange gases including oxygen and carbon dioxide takes place through plasmalemma by diffusion process is enough to meet their metabolic requirements. So amoeba does not need a respiratory system.

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Answer 3

Question

Chapter 15, Problem 1SA

Summary Introduction

To analyze:

The reason why amoeba doesn't need a respiratory system.

Introduction:

Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Expert Solution & Answer

Explanation of Solution

Respiration in amoeba is aerobic and occurs through general body surface of the body by diffusion process. If the partial pressure of oxygen present in the surrounding is more than that of oxygen present in the body of amoeba, oxygen from surrounding diffuses into the body through plasmalemma and if the partial pressure of carbon dioxide in the body of amoeba is more than that of partial pressure of carbon dioxide in the surrounding, carbon dioxide diffuses out through plasmalemma into the surrounding. Since amoebas are tiny and microscopic, the rate of respiration through diffusion process is high enough to meet their metabolic needs. So amoeba does not require a respiratory system.

Conclusion

Amoebas are tiny cells. The rate of exchange gases including oxygen and carbon dioxide takes place through plasmalemma by diffusion process is enough to meet their metabolic requirements. So amoeba does not need a respiratory system.

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Answer 4

Question

Chapter 15, Problem 1SA

Summary Introduction

To analyze:

The reason why amoeba doesn't need a respiratory system.

Introduction:

Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Expert Solution & Answer

Explanation of Solution

Respiration in amoeba is aerobic and occurs through general body surface of the body by diffusion process. If the partial pressure of oxygen present in the surrounding is more than that of oxygen present in the body of amoeba, oxygen from surrounding diffuses into the body through plasmalemma and if the partial pressure of carbon dioxide in the body of amoeba is more than that of partial pressure of carbon dioxide in the surrounding, carbon dioxide diffuses out through plasmalemma into the surrounding. Since amoebas are tiny and microscopic, the rate of respiration through diffusion process is high enough to meet their metabolic needs. So amoeba does not require a respiratory system.

Conclusion

Amoebas are tiny cells. The rate of exchange gases including oxygen and carbon dioxide takes place through plasmalemma by diffusion process is enough to meet their metabolic requirements. So amoeba does not need a respiratory system.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 15, Problem 1SA

Summary Introduction

To analyze:

The reason why amoeba doesn't need a respiratory system.

Introduction:

Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Expert Solution & Answer

Explanation of Solution

Respiration in amoeba is aerobic and occurs through general body surface of the body by diffusion process. If the partial pressure of oxygen present in the surrounding is more than that of oxygen present in the body of amoeba, oxygen from surrounding diffuses into the body through plasmalemma and if the partial pressure of carbon dioxide in the body of amoeba is more than that of partial pressure of carbon dioxide in the surrounding, carbon dioxide diffuses out through plasmalemma into the surrounding. Since amoebas are tiny and microscopic, the rate of respiration through diffusion process is high enough to meet their metabolic needs. So amoeba does not require a respiratory system.

Conclusion

Amoebas are tiny cells. The rate of exchange gases including oxygen and carbon dioxide takes place through plasmalemma by diffusion process is enough to meet their metabolic requirements. So amoeba does not need a respiratory system.

Answer 6

Chapter 15, Problem 1SA

Summary Introduction

To analyze:

The reason why amoeba doesn't need a respiratory system.

Introduction:

Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Expert Solution & Answer

Explanation of Solution

Respiration in amoeba is aerobic and occurs through general body surface of the body by diffusion process. If the partial pressure of oxygen present in the surrounding is more than that of oxygen present in the body of amoeba, oxygen from surrounding diffuses into the body through plasmalemma and if the partial pressure of carbon dioxide in the body of amoeba is more than that of partial pressure of carbon dioxide in the surrounding, carbon dioxide diffuses out through plasmalemma into the surrounding. Since amoebas are tiny and microscopic, the rate of respiration through diffusion process is high enough to meet their metabolic needs. So amoeba does not require a respiratory system.

Conclusion

Amoebas are tiny cells. The rate of exchange gases including oxygen and carbon dioxide takes place through plasmalemma by diffusion process is enough to meet their metabolic requirements. So amoeba does not need a respiratory system.

Answer 7

Chapter 15, Problem 1SA

Summary Introduction

To analyze:

The reason why amoeba doesn't need a respiratory system.

Introduction:

Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Answer 8

Expert Solution & Answer

Explanation of Solution

Respiration in amoeba is aerobic and occurs through general body surface of the body by diffusion process. If the partial pressure of oxygen present in the surrounding is more than that of oxygen present in the body of amoeba, oxygen from surrounding diffuses into the body through plasmalemma and if the partial pressure of carbon dioxide in the body of amoeba is more than that of partial pressure of carbon dioxide in the surrounding, carbon dioxide diffuses out through plasmalemma into the surrounding. Since amoebas are tiny and microscopic, the rate of respiration through diffusion process is high enough to meet their metabolic needs. So amoeba does not require a respiratory system.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

Amoebas are tiny cells. The rate of exchange gases including oxygen and carbon dioxide takes place through plasmalemma by diffusion process is enough to meet their metabolic requirements. So amoeba does not need a respiratory system.

Answer 12

Ch. 15 - Prob. 1SA Ch. 15 - Prob. 2SA Ch. 15 - Prob. 3SA Ch. 15 - Prob. 4SA Ch. 15 - Prob. 5SA Ch. 15 - Prob. 6SA Ch. 15 - Prob. 7SA Ch. 15 - Prob. 8SA Ch. 15 - Prob. 9SA Ch. 15 - Prob. 10SA

The reason why amoeba doesn't need a respiratory system. Introduction: Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Videos

To analyze:

The reason why amoeba doesn't need a respiratory system.

Introduction:

Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Explanation of Solution

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Chapter 15 Solutions

The reason why amoeba doesn't need a respiratory system. Introduction: Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Videos

To analyze: The reason why amoeba doesn't need a respiratory system. Introduction: Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.

Explanation of Solution

Want to see more full solutions like this?

Chapter 15 Solutions

To analyze:

The reason why amoeba doesn't need a respiratory system.

Introduction:

Amoebas are microscopic and unicellular organisms. The body of amoeba is bounded by a very delicate membrane called plasmalemma. Respiration in amoeba takes place by a process called diffusion through plasmalemma.