Cell Structure of Protists and Fungi

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What type of cell structure do protists possess?

Unicellular only

Cell structure of fungi

Typical eukaryotic cell structure (correct)

Prokaryotic cell structure

Which of the following is NOT a component of the eukaryotic cell structure found in protists?

Chloroplasts in all species (correct)

Cell membrane

Nucleus surrounded by a nuclear membrane

Organelles such as mitochondria

Which organelle is commonly found in the cell structure of protists?

Ribosomes

Golgi apparatus

Chloroplasts

Mitochondria (correct)

What characteristic is shared by both unicellular and multicellular protists?

Eukaryotic cell structure Signup and view all the answers

Which of the following best describes protists?

Eukaryotic organisms that can be unicellular or multicellular Signup and view all the answers

What defines protists as a distinct group from Fungi, Plantae, and Animalia?

They possess a nucleus and other membrane-bound organelles. Signup and view all the answers

Which method is recommended for observing protists in pond water?

Using containers with the pond water and observing in subdued light. Signup and view all the answers

How do fungi primarily spread in their environment?

Through spores that are released into the air or water. Signup and view all the answers

What characteristic is common to most protists?

They are mostly unicellular. Signup and view all the answers

Which of the following statements is true regarding the feeding habits of fungi?

They release enzymes to decompose organic material before absorption. Signup and view all the answers

What is a characteristic feature of animal-like protists?

They are heterotrophic and consume other organisms for energy. Signup and view all the answers

How do amoebas move?

By extending pseudopodia to change shape. Signup and view all the answers

Which of the following statements about Volvox and Euglena is true?

They possess mechanisms for movement and can be photosynthetic. Signup and view all the answers

What distinguishes protozoans from fungus-like and plant-like protists?

Protozoans have mechanisms for movement. Signup and view all the answers

What causes the amoeba to change shape when moving?

The movement of dense cytoplasm toward the plasma membrane. Signup and view all the answers

What mechanism do amoebas use to engulf their prey?

Pseudopods Signup and view all the answers

How do amoebas regulate the amount of water in their cells?

With contractile vacuoles Signup and view all the answers

Which of the following best describes the locomotion of amoebas?

Slow attachment to surfaces Signup and view all the answers

What type of reproduction do amoebas primarily undergo?

Asexual reproduction Signup and view all the answers

Which of the following diseases can be caused by some types of amoebas?

Amoebic dysentery Signup and view all the answers

What is the main focus of this module?

Characteristics of eukaryotic kingdoms Protista and Fungi Signup and view all the answers

What is one question posed in the module to encourage reflection on life?

What is life? Signup and view all the answers

Which of the following statements about diatoms is true?

They appear as a collection of oddly shaped buttons. Signup and view all the answers

Which aspect of protists is NOT discussed in the module?

Their common reproductive methods Signup and view all the answers

What can help increase appreciation for the diversity of life forms?

Contemplating diverse life forms on Earth Signup and view all the answers

What is the function of the macronucleus in ciliates?

Metabolic control Signup and view all the answers

How do paramecia primarily acquire their food?

Using cilia to sweep food into the gullet Signup and view all the answers

What process allows ciliates to exchange DNA?

Conjugation Signup and view all the answers

What is the main reason unicellular protists are considered more complex than individual cells of multicellular organisms?

They perform all life functions within a single cell. Signup and view all the answers

Which of the following groups classifies animal-like protists?

Heterotrophic and feed on other organisms. Signup and view all the answers

Which ciliate is known to be a parasite that can cause dysentery in humans?

Balantidium coli Signup and view all the answers

What role do contractile vacuoles play in ciliates?

Regulation of water pressure Signup and view all the answers

What characteristic is shared by fungus-like protists?

They are decomposers of decaying matter. Signup and view all the answers

What distinguishes plant-like protists from other types of protists?

They make their own food through photosynthesis. Signup and view all the answers

Why is there no consensus on the classification of protists among biologists?

Protists share too many characteristics with fungi and animals. Signup and view all the answers

What type of organism is classified under the phylum Ciliophora?

Ciliates Signup and view all the answers

What is the primary function of the macronucleus in Paramecium?

Metabolism control Signup and view all the answers

How is the Trypanosoma protozoa transmitted to humans?

Via bites from infected tsetse flies Signup and view all the answers

Which statement is true regarding Trichonympha and termites?

Trichonympha live in the termite's gut to help digest cellulose. Signup and view all the answers

What is a preferred habitat for most ciliates?

Stagnant lakes and ponds Signup and view all the answers

What is the main characteristic of sporozoans?

They form spores at some point in their life cycle. Signup and view all the answers

How does spore formation occur in sporozoans?

A single nucleus divides multiple times. Signup and view all the answers

What happens to Plasmodium spores after they enter the bloodstream of a human?

They travel to the liver and reproduce asexually. Signup and view all the answers

Which organism is primarily responsible for the transmission of Plasmodium to humans?

Female mosquitoes Signup and view all the answers

What do Plasmodium spores become after they reproduce in the liver?

New Plasmodium that invade red blood cells. Signup and view all the answers

Which process leads to the formation of a spore in sporozoans?

Asexual reproduction involving the concentration of cytoplasm. Signup and view all the answers

What is NOT a characteristic of sporozoans?

They have means of active locomotion. Signup and view all the answers

How do uninfected mosquitoes acquire the Plasmodium parasite?

Through biting infected humans. Signup and view all the answers

What is the primary method through which Plasmodium reproduces in humans?

Asexual reproduction in the liver Signup and view all the answers

What triggers the symptoms of malaria in infected humans?

The destruction of red blood cells Signup and view all the answers

How does Toxoplasma gondii typically exit its host?

In feces forming resistant spores Signup and view all the answers

What disease can result from infection with Toxoplasma gondii in humans?

Toxoplasmosis Signup and view all the answers

What is the role of mosquito saliva when it injects Plasmodium spores into a human?

To prevent blood clotting Signup and view all the answers

Which statement about the reproduction cycle of Plasmodium is true?

Plasmodium reproduces asexually in humans and needs spores to reproduce in mosquitoes. Signup and view all the answers

What is a significant outcome of reducing the mosquito population?

Decrease in malaria transmission Signup and view all the answers

What is the likely cause of a paramecium's inability to conjugate?

Malfunctioning reproductive organelle Signup and view all the answers