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Microvilli and Stereocilia Structure

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Questions and Answers

What is the primary function of microvilli in absorptive epithelial cells?

To reduce the surface area of cells

To facilitate cell division

To provide mechanical support to cells

To increase the absorptive surface area of cells (correct)

What is the main difference between stereocilia and microvilli?

Stereocilia are shorter and thicker than microvilli

Stereocilia are motile, while microvilli are not

Stereocilia are long and irregularly shaped, while microvilli are short and regular (correct)

Stereocilia are found in the ear, while microvilli are found in the small intestine

What is the function of cilia in the trachea?

To move mucous with dirt out of the trachea (correct)

To support the structure of the trachea

To absorb nutrients from the air

To facilitate gas exchange

What is the structure of the basal body of cilia?

A core of microtubules Signup and view all the answers

What is the function of flagella in human spermatozoa?

To provide motility to the sperm cell Signup and view all the answers

What is the main difference between cilia and flagella?

Flagella are longer than cilia Signup and view all the answers

What is the primary function of microvilli in epithelial cells?

To increase the surface area of the cell for absorption Signup and view all the answers

What type of specialization is found at the base of protein synthesizing cells?

Basal infoldings with mitochondria Signup and view all the answers

What is the function of stereocilia in epithelial cells?

To detect sound waves in the ear Signup and view all the answers

What is the primary function of flagella in sperm cells?

To facilitate movement of the sperm cell Signup and view all the answers

What type of basal specialization is found in ion transport cells?

Basal infoldings with mitochondria Signup and view all the answers

What is the primary function of cilia in epithelial cells?

To move mucus or debris out of the respiratory system Signup and view all the answers

What is the primary function of microvilli?

To increase the surface area for absorption Signup and view all the answers

What type of junction is responsible for holding adjacent cells together?

Adhering Junction Signup and view all the answers

What is the primary difference between cilia and flagella?

Cilia are shorter, while flagella are longer Signup and view all the answers

What is the name of the structure composed of a core of actin microfilaments?

Microvilli Signup and view all the answers

What is the name of the basal specialization that provides mechanical support to the cell?

Basement Membrane Signup and view all the answers

What is the term for the intrinsic asymmetry of cells?

Cell polarity Signup and view all the answers