Fungi bodies are called as mycelia. These mycelia are made up of a network of a thread-like structure called as hyphae. These hyphae are single-celled and interconnected. As these threads are single-celled, the cell wall of the hyphae has to be extremely strong for the survival of the fungi.

Question

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Answer 1

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 23, Problem 1MC

Summary Introduction

Introduction:

Fungi bodies are called as mycelia. These mycelia are made up of a network of a thread-like structure called as hyphae. These hyphae are single-celled and interconnected. As these threads are single-celled, the cell wall of the hyphae has to be extremely strong for the survival of the fungi.

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

Fungi have cell walls primarily composed of chitin.

Explanation of Solution

Explanation for the correct answer:

Option (c) is given that Fungi have cell walls primarily composed of chitin. Chitin is a strong substance. It is primarily found in exoskeletons of some insects and species related to crab for protection. This substance is also found in cell walls of fungi. This substance makes the tiny hyphae stronger and maintains their cell stability. Hence, option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that Fungi have cell walls primarily composed of lignin. Lignin is a substance found primarily in the wood. This is a strong substance that makes the tree trunks hard. On the contrary, only some species of the fungi can decompose the lignin from the dead plant bodies. So, it is an incorrect option.

Option (b) is given that Fungi have cell walls primarily composed of cellulose. Cellulose is found in most of the plant cells. Most of the animals that eat plant cannot digest cellulose. So they let some species of fungi like rumen live in their gut symbiotically. These fungi digest cellulose. So, it is an incorrect option.

Option (d) is given that Fungi have cell walls primarily composed of glucose. Glucose molecules are the primary source of energy for fungi. They obtain it from other organisms by symbiosis or parasitism. Glucose is not the part of the fungi cell wall. So, it is an incorrect option.

Hence, options, (a), (b), and (d) are incorrect.

Conclusion

Therefore, cell walls of Fungi are primarily composed of chitin.

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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…

Answer 2

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 23, Problem 1MC

Summary Introduction

Introduction:

Fungi bodies are called as mycelia. These mycelia are made up of a network of a thread-like structure called as hyphae. These hyphae are single-celled and interconnected. As these threads are single-celled, the cell wall of the hyphae has to be extremely strong for the survival of the fungi.

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

Fungi have cell walls primarily composed of chitin.

Explanation of Solution

Explanation for the correct answer:

Option (c) is given that Fungi have cell walls primarily composed of chitin. Chitin is a strong substance. It is primarily found in exoskeletons of some insects and species related to crab for protection. This substance is also found in cell walls of fungi. This substance makes the tiny hyphae stronger and maintains their cell stability. Hence, option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that Fungi have cell walls primarily composed of lignin. Lignin is a substance found primarily in the wood. This is a strong substance that makes the tree trunks hard. On the contrary, only some species of the fungi can decompose the lignin from the dead plant bodies. So, it is an incorrect option.

Option (b) is given that Fungi have cell walls primarily composed of cellulose. Cellulose is found in most of the plant cells. Most of the animals that eat plant cannot digest cellulose. So they let some species of fungi like rumen live in their gut symbiotically. These fungi digest cellulose. So, it is an incorrect option.

Option (d) is given that Fungi have cell walls primarily composed of glucose. Glucose molecules are the primary source of energy for fungi. They obtain it from other organisms by symbiosis or parasitism. Glucose is not the part of the fungi cell wall. So, it is an incorrect option.

Hence, options, (a), (b), and (d) are incorrect.

Conclusion

Therefore, cell walls of Fungi are primarily composed of chitin.

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Answer 3

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 23, Problem 1MC

Summary Introduction

Introduction:

Fungi bodies are called as mycelia. These mycelia are made up of a network of a thread-like structure called as hyphae. These hyphae are single-celled and interconnected. As these threads are single-celled, the cell wall of the hyphae has to be extremely strong for the survival of the fungi.

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

Fungi have cell walls primarily composed of chitin.

Explanation of Solution

Explanation for the correct answer:

Option (c) is given that Fungi have cell walls primarily composed of chitin. Chitin is a strong substance. It is primarily found in exoskeletons of some insects and species related to crab for protection. This substance is also found in cell walls of fungi. This substance makes the tiny hyphae stronger and maintains their cell stability. Hence, option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that Fungi have cell walls primarily composed of lignin. Lignin is a substance found primarily in the wood. This is a strong substance that makes the tree trunks hard. On the contrary, only some species of the fungi can decompose the lignin from the dead plant bodies. So, it is an incorrect option.

Option (b) is given that Fungi have cell walls primarily composed of cellulose. Cellulose is found in most of the plant cells. Most of the animals that eat plant cannot digest cellulose. So they let some species of fungi like rumen live in their gut symbiotically. These fungi digest cellulose. So, it is an incorrect option.

Option (d) is given that Fungi have cell walls primarily composed of glucose. Glucose molecules are the primary source of energy for fungi. They obtain it from other organisms by symbiosis or parasitism. Glucose is not the part of the fungi cell wall. So, it is an incorrect option.

Hence, options, (a), (b), and (d) are incorrect.

Conclusion

Therefore, cell walls of Fungi are primarily composed of chitin.

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Answer 4

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 23, Problem 1MC

Summary Introduction

Introduction:

Fungi bodies are called as mycelia. These mycelia are made up of a network of a thread-like structure called as hyphae. These hyphae are single-celled and interconnected. As these threads are single-celled, the cell wall of the hyphae has to be extremely strong for the survival of the fungi.

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

Fungi have cell walls primarily composed of chitin.

Explanation of Solution

Explanation for the correct answer:

Option (c) is given that Fungi have cell walls primarily composed of chitin. Chitin is a strong substance. It is primarily found in exoskeletons of some insects and species related to crab for protection. This substance is also found in cell walls of fungi. This substance makes the tiny hyphae stronger and maintains their cell stability. Hence, option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that Fungi have cell walls primarily composed of lignin. Lignin is a substance found primarily in the wood. This is a strong substance that makes the tree trunks hard. On the contrary, only some species of the fungi can decompose the lignin from the dead plant bodies. So, it is an incorrect option.

Option (b) is given that Fungi have cell walls primarily composed of cellulose. Cellulose is found in most of the plant cells. Most of the animals that eat plant cannot digest cellulose. So they let some species of fungi like rumen live in their gut symbiotically. These fungi digest cellulose. So, it is an incorrect option.

Option (d) is given that Fungi have cell walls primarily composed of glucose. Glucose molecules are the primary source of energy for fungi. They obtain it from other organisms by symbiosis or parasitism. Glucose is not the part of the fungi cell wall. So, it is an incorrect option.

Hence, options, (a), (b), and (d) are incorrect.

Conclusion

Therefore, cell walls of Fungi are primarily composed of chitin.

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Answer 5

Chapter 23, Problem 1MC

Summary Introduction

Introduction:

Fungi bodies are called as mycelia. These mycelia are made up of a network of a thread-like structure called as hyphae. These hyphae are single-celled and interconnected. As these threads are single-celled, the cell wall of the hyphae has to be extremely strong for the survival of the fungi.

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

Fungi have cell walls primarily composed of chitin.

Explanation of Solution

Explanation for the correct answer:

Option (c) is given that Fungi have cell walls primarily composed of chitin. Chitin is a strong substance. It is primarily found in exoskeletons of some insects and species related to crab for protection. This substance is also found in cell walls of fungi. This substance makes the tiny hyphae stronger and maintains their cell stability. Hence, option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that Fungi have cell walls primarily composed of lignin. Lignin is a substance found primarily in the wood. This is a strong substance that makes the tree trunks hard. On the contrary, only some species of the fungi can decompose the lignin from the dead plant bodies. So, it is an incorrect option.

Option (b) is given that Fungi have cell walls primarily composed of cellulose. Cellulose is found in most of the plant cells. Most of the animals that eat plant cannot digest cellulose. So they let some species of fungi like rumen live in their gut symbiotically. These fungi digest cellulose. So, it is an incorrect option.

Option (d) is given that Fungi have cell walls primarily composed of glucose. Glucose molecules are the primary source of energy for fungi. They obtain it from other organisms by symbiosis or parasitism. Glucose is not the part of the fungi cell wall. So, it is an incorrect option.

Hence, options, (a), (b), and (d) are incorrect.

Conclusion

Therefore, cell walls of Fungi are primarily composed of chitin.

Answer 6

Chapter 23, Problem 1MC

Summary Introduction

Introduction:

Fungi bodies are called as mycelia. These mycelia are made up of a network of a thread-like structure called as hyphae. These hyphae are single-celled and interconnected. As these threads are single-celled, the cell wall of the hyphae has to be extremely strong for the survival of the fungi.

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

Fungi have cell walls primarily composed of chitin.

Explanation of Solution

Explanation for the correct answer:

Option (c) is given that Fungi have cell walls primarily composed of chitin. Chitin is a strong substance. It is primarily found in exoskeletons of some insects and species related to crab for protection. This substance is also found in cell walls of fungi. This substance makes the tiny hyphae stronger and maintains their cell stability. Hence, option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that Fungi have cell walls primarily composed of lignin. Lignin is a substance found primarily in the wood. This is a strong substance that makes the tree trunks hard. On the contrary, only some species of the fungi can decompose the lignin from the dead plant bodies. So, it is an incorrect option.

Option (b) is given that Fungi have cell walls primarily composed of cellulose. Cellulose is found in most of the plant cells. Most of the animals that eat plant cannot digest cellulose. So they let some species of fungi like rumen live in their gut symbiotically. These fungi digest cellulose. So, it is an incorrect option.

Option (d) is given that Fungi have cell walls primarily composed of glucose. Glucose molecules are the primary source of energy for fungi. They obtain it from other organisms by symbiosis or parasitism. Glucose is not the part of the fungi cell wall. So, it is an incorrect option.

Hence, options, (a), (b), and (d) are incorrect.

Conclusion

Therefore, cell walls of Fungi are primarily composed of chitin.

Answer 7

Chapter 23, Problem 1MC

Summary Introduction

Introduction:

Fungi bodies are called as mycelia. These mycelia are made up of a network of a thread-like structure called as hyphae. These hyphae are single-celled and interconnected. As these threads are single-celled, the cell wall of the hyphae has to be extremely strong for the survival of the fungi.

Answer 8

Expert Solution & Answer

Answer to Problem 1MC

Correct answer:

Fungi have cell walls primarily composed of chitin.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Explanation for the correct answer:

Option (c) is given that Fungi have cell walls primarily composed of chitin. Chitin is a strong substance. It is primarily found in exoskeletons of some insects and species related to crab for protection. This substance is also found in cell walls of fungi. This substance makes the tiny hyphae stronger and maintains their cell stability. Hence, option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that Fungi have cell walls primarily composed of lignin. Lignin is a substance found primarily in the wood. This is a strong substance that makes the tree trunks hard. On the contrary, only some species of the fungi can decompose the lignin from the dead plant bodies. So, it is an incorrect option.

Option (b) is given that Fungi have cell walls primarily composed of cellulose. Cellulose is found in most of the plant cells. Most of the animals that eat plant cannot digest cellulose. So they let some species of fungi like rumen live in their gut symbiotically. These fungi digest cellulose. So, it is an incorrect option.

Option (d) is given that Fungi have cell walls primarily composed of glucose. Glucose molecules are the primary source of energy for fungi. They obtain it from other organisms by symbiosis or parasitism. Glucose is not the part of the fungi cell wall. So, it is an incorrect option.

Hence, options, (a), (b), and (d) are incorrect.