Cell Biology MCQs

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Download our mobile app to listen on the go

Get App

Questions and Answers

Which component of the cytoskeleton is primarily responsible for cell motility and forming fibers during cell division?

Intermediate filaments
Actin filaments (correct)
Microtubules
Peroxisomes

What is the role of the centrosome in animal cells?

Transporting vesicles
Organizing microtubules (correct)
Synthesizing proteins
Producing energy

Which of the following human cells is an example of a flagellated cell?

Sperm cell (correct)
Red blood cell
Neuron
Muscle cell

Which organelle is responsible for neutralizing hydrogen peroxide through enzyme action?

<p>Peroxisomes (D)</p> Signup and view all the answers

What structure is responsible for separating chromosomes during cell division?

<p>Centrosom (D)</p> Signup and view all the answers

Flashcards

What is the function of microtubules in cells?

Microtubules are hollow tubes made of tubulin protein. They are crucial for cell motility, forming fibers during cell division (mitosis and meiosis), and transporting cellular components.

What is the primary role of the centrosome?

The primary function of the centrosome in animal cells is to organize microtubules. It acts as a microtubule-organizing center (MTOC).

Which human cell is an example of a flagellated cell?

Sperm cells are the only human cells with flagella. Flagella are long, whip-like structures that enable sperm to move towards the egg for fertilization.

Which organelle neutralizes hydrogen peroxide?

Peroxisomes are small organelles that contain enzymes that break down hydrogen peroxide (H2O2), a toxic byproduct of cellular metabolism.

Signup and view all the flashcards

What structure separates chromosomes during cell division?

The spindle apparatus consists of microtubule fibers that attach to chromosomes during cell division. It pulls the chromosomes apart, ensuring equal distribution to daughter cells.

Signup and view all the flashcards

Study Notes

Cell Biology MCQs

Microtubules: Essential component of the cytoskeleton, responsible for cell motility and forming fibers during cell division.
Centrosome: In animal cells, its primary function is organizing microtubules.
Flagellated Human Cells: Sperm cells are an example.
Hydrogen Peroxide Neutralization: Peroxisomes contain enzymes to neutralize hydrogen peroxide.
Chromosome Separation: The spindle apparatus separates chromosomes during cell division.
Actin Filaments: Part of the cytoskeleton, composed of actin protein, involved in maintaining cell shape and facilitating cell movement. They bear mechanical tension within cells.
Intermediate Filaments: Cytoskeleton component providing mechanical strength and maintaining cell shape.
Centrioles: Centrioles are part of the centrosome complex, and have a structure of nine triplets of microtubules.
Cilia: Move substances across the outer surface of cells, particularly in respiratory tracts.
Transport Vesicles: Primarily synthesized by the smooth endoplasmic reticulum (smooth ER).