Amoeba Cell Wall Quiz

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What is the main function of invagination in microbial physiology?

To regulate selective permeability

To maintain membrane fluidity

To transport proteins across the cell membrane

To allow the cell to turn inside out or be folded back (correct)

Where are ICTYOSOMES primarily found?

Within the Golgi apparatus of plant cells

Exclusively in algae (correct)

In animal cells

Only in bacteria

Which structure is made of the protein pilin and is found on gram-negative bacteria?

ILI

IFFERENCE

IMBRIAE (correct)

PHAGOCYTOSIS

What is the main difference between a slime layer and a capsule in microbial physiology?

Capsule is more organized, while a slime layer is loose and easily removed. (C) Signup and view all the answers

What process involves an amoeba using extensions of its cytoplasm to surround and engulf large particles?

phagocytosis (C) Signup and view all the answers

Which cellular attachment involves being attached to surfaces?

IMBRIAE (C) Signup and view all the answers

Why can't the cell wall undergo pinocytosis or phagocytosis?

The cell wall is made of alternating sugars (A) Signup and view all the answers

What is the main function of the tiny vacuoles filled with water in an Amoeba cell?

Nutrient accumulation (C) Signup and view all the answers

Which component of the cell membrane is responsible for connecting flagellin to the motor portion?

Hook (D) Signup and view all the answers

What is the main function of a bacterial capsule in terms of transport mechanisms?

Inhibiting phagocytosis (B) Signup and view all the answers

Why do bacterial capsules serve as a 'cellular garbage dump'?

To accumulate waste materials (D) Signup and view all the answers

What drives the rotation of the flagellar motor in bacteria?

Proton motive force (A) Signup and view all the answers

Where is the P ring located in the flagellar structure?

Peptidoglycan layer (D) Signup and view all the answers

What is the main function of the apothecium in lichens?

Serve as the reproductive organ of the fungus (A) Signup and view all the answers

Which organelle is essential for the survival and growth of plants and photosynthetic protists?

Chloroplast (D) Signup and view all the answers

What structure is formed by the imbrication of fungal filaments and algal cells in lichens?

Thallus (D) Signup and view all the answers

Which characteristic is NOT associated with protists?

Cell wall composed of cellulose (D) Signup and view all the answers

What is the function of the nucleus in protists?

Protects the protist's DNA (B) Signup and view all the answers

How do protists exhibit locomotion?

Using cilia and flagella (A) Signup and view all the answers

Which type of reproduction is characteristic of symbiotic units among protists?

Asexual by cell division (A) Signup and view all the answers