Cell Organelles and Protein Synthesis
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Questions and Answers

What does the plasma membrane separate?

Extracellular fluid from intracellular fluid

ICF is composed of ______ and dissolved ions, amino acids, sugars, etc.

H₂O

What structures in the cell perform specific functions?

Organelles

What is the sequence of protein synthesis?

<p>DNA -&gt; RNA -&gt; Protein</p> Signup and view all the answers

What is the main function of the nucleus?

<p>Controls protein synthesis</p> Signup and view all the answers

Transcription is the process of copying ______ from DNA.

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

What do ribosomes contain?

<p>Protein and tRNA</p> Signup and view all the answers

What is the site of protein synthesis?

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

Translation is the process of using ______ to make protein.

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

Free ribosomes make proteins that work within the cell.

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

Study Notes

Cell Organelles

  • Plasma Membrane delineates the boundary between extracellular fluid and intracellular fluid, crucial for maintaining homeostasis.
  • Intracellular fluid (ICF) consists of water and various dissolved substances such as ions, amino acids, and sugars.
  • Organelles are specialized structures within cells that perform distinct functions and house enzymes essential for these activities.

Protein Synthesis: DNA -> RNA -> Protein

Nucleus

  • Acts as a control center for protein synthesis.
  • Houses DNA, the genetic material that guides cell function.
  • Transcription is the process by which messenger RNA (mRNA) is synthesized from DNA.

Ribosomes

  • Composed of granules that contain proteins and transfer RNA (tRNA).
  • Function as the primary site of protein synthesis within the cell.
  • Translation is the process that involves utilizing mRNA to produce proteins, facilitating the expression of genetic information.
  • Free ribosomes synthesize proteins that typically function within the cytosol (the liquid component of the cell).

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Description

This quiz covers essential cell organelles and their functions, particularly focusing on protein synthesis. It includes details on the nucleus, plasma membrane, and ribosomes, shedding light on the processes of transcription and cellular homeostasis.

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