Biology Chapter on Protozoans and Nutrition

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Questions and Answers

Which reproductive method do protozoans NOT use?

  • Sexual reproduction
  • Budding (correct)
  • Binary fission
  • Spore formation

Which of the following organisms reproduce by binary fission?

  • Chrysophytes (correct)
  • Slime molds
  • Euglenoids (correct)
  • All of the above

What is holozoic nutrition?

  • Nutrition obtained through absorption from the environment
  • Nutrition through photosynthesis
  • Nutrition by ingesting other organisms (correct)
  • Nutrition obtained from inorganic sources

What type of reproduction is primarily exhibited by slime molds?

<p>Spore formation (C)</p> Signup and view all the answers

Which nutritional process can organisms that are mixotrophic perform?

<p>Both autotrophic and heterotrophic nutrition (D)</p> Signup and view all the answers

Which of the following is NOT a type of sexual reproduction mentioned?

<p>Sporangium (B)</p> Signup and view all the answers

What primarily occurs during binary fission?

<p>Division of a single cell into two daughter cells (A)</p> Signup and view all the answers

Which organism is known for exhibiting mixotrophic nutrition?

<p>Euglenoids (B), Dinoflagellates (C)</p> Signup and view all the answers

Flashcards

Binary Fission

The process of reproduction in some organisms where a single cell divides into two identical daughter cells. It's a common form of asexual reproduction in many single-celled organisms.

Spore Formation

A type of reproduction where organisms produce spores, often within structures called sporangia. Spores are resistant structures that can survive harsh conditions.

Holozoic Nutrition

A type of nutrition where organisms obtain nutrients by consuming other organisms. This is a common mode of nutrition among animals.

Mixotrophic Nutrition

A unique type of nutrition displayed by some Protists. These organisms can produce their own food through photosynthesis like plants (autotrophic) and also consume other organisms like animals (heterotrophic).

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Types of Protista

Members of the Kingdom Protista are diverse. They include protozoans, diatoms, dinoflagellates, euglenoids, and slime molds.

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Sexual Reproduction

A type of reproduction involving the fusion of two gametes (sex cells), contributing genetic material from both parents. Provides genetic diversity.

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Asexual Reproduction

A type of reproduction where an organism produces offspring that are genetically identical to itself, without the involvement of gametes.

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Sporangium

Structures involved in spore production. They provide protection and favorable conditions for the spores to survive.

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