Cell Biology Quiz

Questions and Answers

What does cell theory state about cells?

Cells can spontaneously generate under certain conditions.

Cells make up all living things and come from preexisting cells. (correct)

Cells are only found in multicellular organisms.

Cells perform functions only in animal organisms.

What is a group of similar cells that work together called?

Organelle

Tissue (correct)

Organ

System

What is the primary role of the cell membrane?

To regulate what comes in and goes out of the cell. (correct)

To provide energy to the cell.

To store genetic information.

To protect the cell against external damage.

Which structure contains a cell's DNA?

<p>Chromosome</p> Signup and view all the answers

What is a flagellum used for?

<p>To propel the cell through its environment.</p> Signup and view all the answers

Study Notes

Cell Theory

States that all living things are composed of cells.
Cells arise from preexisting cells.
Cells perform essential functions necessary for life.

Tissues

Defined as a group of similar cells working collaboratively.
Function together to carry out specific tasks in an organism.

Organs

Composed of multiple tissue types working in unison.
Each organ has a specialized role contributing to the organism's overall function.

Organelles

Membrane-bound structures found in eukaryotic cells.
Perform specialized functions vital for cell operation (e.g., energy production, waste processing).

Cell Membrane

Encloses all types of cells.
Regulates the movement of substances in and out of the cell.

Cell Wall

Present in certain cells, offering a rigid structure.
Provides protection and support, commonly found in plant cells and some bacteria.

Capsule

A protective, slimy layer surrounding some bacteria.
Shields bacteria from harmful substances and helps retain moisture.

Cytoplasm

The jelly-like substance within a cell, exclusive of the nucleus.
Contains organelles and is the site for many cellular processes.

Flagellum

A whip-like appendage allowing some cells to move in their environment.
Facilitates mobility in certain bacteria and single-celled organisms.

DNA

Contains genetic information essential for protein synthesis.
Plays a crucial role in regulating various cellular functions.

Chromosome

Consists of tightly coiled DNA within the cell.
Carries the genetic blueprint necessary for inheritance and cellular activities.

Description

Test your knowledge on cell theory and the structure of cells, including organelles, cell membranes, and cell walls. This quiz will cover the fundamental concepts that define living organisms and their cellular composition. Explore the relationships between cells, tissues, and organs.