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Cell Biology Quiz

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Questions and Answers

What is the primary function of a mitochondrion in a cell?

To produce energy (correct)

To synthesize proteins

To regulate the cell cycle

To store genetic information

Which of the following statements accurately describes ribosomes?

They govern cell division.

They are responsible for lipid metabolism.

They only exist within the nucleus.

They are involved in protein synthesis. (correct)

What role does the cell membrane play in a cell?

It generates energy through cellular respiration.

It controls the genetic information.

It provides structural support for the nucleus.

It acts as a barrier and regulates transport. (correct)

Which component is primarily responsible for the synthesis of ATP?

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

Which organelle is involved in the post-translational modification of proteins?

<p>Golgi apparatus</p> Signup and view all the answers

Study Notes

Mitochondria

Responsible for cellular respiration, generating ATP (adenosine triphosphate) through the breakdown of glucose.
The primary source of energy for the cell.

Ribosomes

Responsible for protein synthesis.
Composed of ribosomal RNA (rRNA) and proteins.
Found in the cytoplasm and attached to the endoplasmic reticulum.

Cell Membrane

Acts as a selectively permeable barrier between the cell's interior and the external environment.
Regulates the passage of molecules into and out of the cell.
Plays a role in cell signaling and communication.

ATP Synthesis

The mitochondria is primarily responsible for ATP synthesis.
ATP is the primary energy currency for most cellular processes.

Protein Modification

The Golgi apparatus is involved in the post-translational modification of proteins.
Modifies, sorts, and packages proteins before they are transported to their final destination.

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Description

Test your knowledge on cell biology concepts including the functions of mitochondria, ribosomes, and cell membranes. This quiz covers essential organelles and their roles in cellular processes, including ATP synthesis and protein modification.