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Biology Chapter 4 Quiz

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Questions and Answers

What is the primary function of a cell membrane?

To control the movement of substances in and out of the cell. (correct)

To provide energy for cell processes.

To facilitate cell division.

To store genetic information.

Which of the following components is essential for protein synthesis?

Lysosomes

Mitochondria

Vesicles

Ribosomes (correct)

What role do enzymes play in biochemical reactions?

They provide structural support to cells.

They slow down the reaction rates.

They act as catalysts to increase reaction rates. (correct)

They are consumed during the reactions.

Which of the following is NOT a function of the cytoskeleton?

<p>Storing energy in the form of glucose.</p> Signup and view all the answers

What is one function of the mitochondria?

<p>To generate ATP through respiration.</p> Signup and view all the answers

Study Notes

Cell Membrane Function

Regulates the passage of substances in and out of the cell, acting as a selective barrier.

Protein Synthesis

Ribosomes are essential for protein synthesis. They are responsible for translating genetic information carried by messenger RNA (mRNA) into proteins.

Enzyme Function

Enzymes act as biological catalysts, accelerating biochemical reactions by lowering activation energy.

Cytoskeleton Functions

The cytoskeleton is responsible for providing structural support, maintaining cell shape, and facilitating cell movement. It is NOT involved in protein synthesis.

Mitochondria Function

Mitochondria are responsible for generating energy in the form of ATP (adenosine triphosphate) through cellular respiration. This process utilizes glucose and oxygen to produce energy.

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Description

Test your knowledge on the key functions and components of cellular biology with this quiz based on Chapter 4. Questions cover cell membranes, protein synthesis, enzymes, and organelle functions. Perfect for reinforcing your understanding of biological concepts!