Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

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 20, Problem 1SQ

Summary Introduction

Introduction:

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Expert Solution & Answer

Answer to Problem 1SQ

Correct answer:

All flagellated protozoans live as single cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “live as single cells.”

Mostly flagellated protozoans are single-celled. These are heterotrophic organisms. They intake food by the process of phagocytosis. The shape of the flagellated protozoans is maintained by pellicle. Examples of flagellated protozoan are diplomonads and parabasalids.

Reason for incorrect answer:

Option a. is given as “lack mitochondria.”

Mitochondria are the organelle that helps in producing ATP (adenosine triphosphate) in the body. ATP is an essential source of energy. Flagellated protozoans have mitochondria. Hence, option a. is incorrect.

Option b. is given as “are photosynthetic.”

Flagellated protozoans are not photosynthetic. The photosynthetic protozoans are algae. Such as Euglena. Hence, option b. is incorrect.

Option d. is given as, “cause disease.”

Some of the flagellated protozoans cause disease. Such as Trichomonas vaginalis. The entire protozoans are not parasites. Such as amoeba is not parasitic. Hence, option d. is incorrect.

Hence, the options a, b, and d are incorrect.

Conclusion

The flagellated protozoans can live as single-celled organisms. Thus, the correct option is c.

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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 20, Problem 1SQ

Summary Introduction

Introduction:

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Expert Solution & Answer

Answer to Problem 1SQ

Correct answer:

All flagellated protozoans live as single cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “live as single cells.”

Mostly flagellated protozoans are single-celled. These are heterotrophic organisms. They intake food by the process of phagocytosis. The shape of the flagellated protozoans is maintained by pellicle. Examples of flagellated protozoan are diplomonads and parabasalids.

Reason for incorrect answer:

Option a. is given as “lack mitochondria.”

Mitochondria are the organelle that helps in producing ATP (adenosine triphosphate) in the body. ATP is an essential source of energy. Flagellated protozoans have mitochondria. Hence, option a. is incorrect.

Option b. is given as “are photosynthetic.”

Flagellated protozoans are not photosynthetic. The photosynthetic protozoans are algae. Such as Euglena. Hence, option b. is incorrect.

Option d. is given as, “cause disease.”

Some of the flagellated protozoans cause disease. Such as Trichomonas vaginalis. The entire protozoans are not parasites. Such as amoeba is not parasitic. Hence, option d. is incorrect.

Hence, the options a, b, and d are incorrect.

Conclusion

The flagellated protozoans can live as single-celled organisms. Thus, the correct option is c.

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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 20, Problem 1SQ

Summary Introduction

Introduction:

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Expert Solution & Answer

Answer to Problem 1SQ

Correct answer:

All flagellated protozoans live as single cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “live as single cells.”

Mostly flagellated protozoans are single-celled. These are heterotrophic organisms. They intake food by the process of phagocytosis. The shape of the flagellated protozoans is maintained by pellicle. Examples of flagellated protozoan are diplomonads and parabasalids.

Reason for incorrect answer:

Option a. is given as “lack mitochondria.”

Mitochondria are the organelle that helps in producing ATP (adenosine triphosphate) in the body. ATP is an essential source of energy. Flagellated protozoans have mitochondria. Hence, option a. is incorrect.

Option b. is given as “are photosynthetic.”

Flagellated protozoans are not photosynthetic. The photosynthetic protozoans are algae. Such as Euglena. Hence, option b. is incorrect.

Option d. is given as, “cause disease.”

Some of the flagellated protozoans cause disease. Such as Trichomonas vaginalis. The entire protozoans are not parasites. Such as amoeba is not parasitic. Hence, option d. is incorrect.

Hence, the options a, b, and d are incorrect.

Conclusion

The flagellated protozoans can live as single-celled organisms. Thus, the correct option is c.

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

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 20, Problem 1SQ

Summary Introduction

Introduction:

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Expert Solution & Answer

Answer to Problem 1SQ

Correct answer:

All flagellated protozoans live as single cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “live as single cells.”

Mostly flagellated protozoans are single-celled. These are heterotrophic organisms. They intake food by the process of phagocytosis. The shape of the flagellated protozoans is maintained by pellicle. Examples of flagellated protozoan are diplomonads and parabasalids.

Reason for incorrect answer:

Option a. is given as “lack mitochondria.”

Mitochondria are the organelle that helps in producing ATP (adenosine triphosphate) in the body. ATP is an essential source of energy. Flagellated protozoans have mitochondria. Hence, option a. is incorrect.

Option b. is given as “are photosynthetic.”

Flagellated protozoans are not photosynthetic. The photosynthetic protozoans are algae. Such as Euglena. Hence, option b. is incorrect.

Option d. is given as, “cause disease.”

Some of the flagellated protozoans cause disease. Such as Trichomonas vaginalis. The entire protozoans are not parasites. Such as amoeba is not parasitic. Hence, option d. is incorrect.

Hence, the options a, b, and d are incorrect.

Conclusion

The flagellated protozoans can live as single-celled organisms. Thus, the correct option is c.

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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 20, Problem 1SQ

Summary Introduction

Introduction:

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Expert Solution & Answer

Answer to Problem 1SQ

Correct answer:

All flagellated protozoans live as single cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “live as single cells.”

Mostly flagellated protozoans are single-celled. These are heterotrophic organisms. They intake food by the process of phagocytosis. The shape of the flagellated protozoans is maintained by pellicle. Examples of flagellated protozoan are diplomonads and parabasalids.

Reason for incorrect answer:

Option a. is given as “lack mitochondria.”

Mitochondria are the organelle that helps in producing ATP (adenosine triphosphate) in the body. ATP is an essential source of energy. Flagellated protozoans have mitochondria. Hence, option a. is incorrect.

Option b. is given as “are photosynthetic.”

Flagellated protozoans are not photosynthetic. The photosynthetic protozoans are algae. Such as Euglena. Hence, option b. is incorrect.

Option d. is given as, “cause disease.”

Some of the flagellated protozoans cause disease. Such as Trichomonas vaginalis. The entire protozoans are not parasites. Such as amoeba is not parasitic. Hence, option d. is incorrect.

Hence, the options a, b, and d are incorrect.

Conclusion

The flagellated protozoans can live as single-celled organisms. Thus, the correct option is c.

Answer 6

Chapter 20, Problem 1SQ

Summary Introduction

Introduction:

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Expert Solution & Answer

Answer to Problem 1SQ

Correct answer:

All flagellated protozoans live as single cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “live as single cells.”

Mostly flagellated protozoans are single-celled. These are heterotrophic organisms. They intake food by the process of phagocytosis. The shape of the flagellated protozoans is maintained by pellicle. Examples of flagellated protozoan are diplomonads and parabasalids.

Reason for incorrect answer:

Option a. is given as “lack mitochondria.”

Mitochondria are the organelle that helps in producing ATP (adenosine triphosphate) in the body. ATP is an essential source of energy. Flagellated protozoans have mitochondria. Hence, option a. is incorrect.

Option b. is given as “are photosynthetic.”

Flagellated protozoans are not photosynthetic. The photosynthetic protozoans are algae. Such as Euglena. Hence, option b. is incorrect.

Option d. is given as, “cause disease.”

Some of the flagellated protozoans cause disease. Such as Trichomonas vaginalis. The entire protozoans are not parasites. Such as amoeba is not parasitic. Hence, option d. is incorrect.

Hence, the options a, b, and d are incorrect.

Conclusion

The flagellated protozoans can live as single-celled organisms. Thus, the correct option is c.

Answer 7

Chapter 20, Problem 1SQ

Summary Introduction

Introduction:

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Answer 8

Expert Solution & Answer

Answer to Problem 1SQ

Correct answer:

All flagellated protozoans live as single cells. Hence, the correct answer is option c.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Reason for correct answer:

Option c. is given as “live as single cells.”

Mostly flagellated protozoans are single-celled. These are heterotrophic organisms. They intake food by the process of phagocytosis. The shape of the flagellated protozoans is maintained by pellicle. Examples of flagellated protozoan are diplomonads and parabasalids.

Reason for incorrect answer:

Option a. is given as “lack mitochondria.”

Mitochondria are the organelle that helps in producing ATP (adenosine triphosphate) in the body. ATP is an essential source of energy. Flagellated protozoans have mitochondria. Hence, option a. is incorrect.

Option b. is given as “are photosynthetic.”

Flagellated protozoans are not photosynthetic. The photosynthetic protozoans are algae. Such as Euglena. Hence, option b. is incorrect.

Option d. is given as, “cause disease.”

Some of the flagellated protozoans cause disease. Such as Trichomonas vaginalis. The entire protozoans are not parasites. Such as amoeba is not parasitic. Hence, option d. is incorrect.

Hence, the options a, b, and d are incorrect.

Answer 12

Conclusion

The flagellated protozoans can live as single-celled organisms. Thus, the correct option is c.

Answer 13

Ch. 20 - Prob. 1SQ Ch. 20 - Prob. 2SQ Ch. 20 - The presence of a contractile vacuole indicates...Ch. 20 - Prob. 4SQ Ch. 20 - Prob. 5SQ Ch. 20 - Prob. 6SQ Ch. 20 - Prob. 7SQ Ch. 20 - Prob. 8SQ Ch. 20 - Prob. 9SQ Ch. 20 - Prob. 10SQ

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Concept explainers

Videos

Introduction:

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Answer to Problem 1SQ

Explanation of Solution

Want to see more full solutions like this?

Chapter 20 Solutions

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Concept explainers

Videos

Introduction: Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.

Answer to Problem 1SQ

Explanation of Solution

Want to see more full solutions like this?

Chapter 20 Solutions

Introduction:

Protozoans are members of phylum protista. Phylum protist consists of a variety of single-celled and multi-celled organisms. Flagellated protozoan heterotrophic protists which may have one or more that one flagellum.