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Cell Biology Refresher

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Questions and Answers

What is the primary site of ribosome assembly in a eukaryotic cell?

Nucleolus (correct)

Lysosomes

Golgi apparatus

Endoplasmic reticulum

What type of chromatin is associated with active transcription?

Euchromatin (correct)

Nucleolus

Heterochromatin

Chromatin

What is the function of the nuclear pore complex in a eukaryotic cell?

To compact DNA into chromatin

To regulate the transport of molecules in and out of the nucleus (correct)

To transcribe DNA into RNA

To synthesize proteins

What is the term for the process by which DNA is wrapped around histones to form chromatin?

DNA packing (B) Signup and view all the answers

What type of inheritance is shown in the given pedigree?

Autosomal dominant (B) Signup and view all the answers

What is the primary function of integrins in the cell membrane?

To link to actin filaments inside the cell and fibronectin in the extracellular matrix (B) Signup and view all the answers

What is the main difference between proteins synthesized in the cytosol and those completed at the RER?

The former are destined for the cytosol, nucleus, or organelles, while the latter are destined for the cell membrane or secretion (A) Signup and view all the answers

What is the function of fibronectin in the extracellular matrix?

To link to integrins in the cell membrane and actin filaments inside the cell (D) Signup and view all the answers

What is the result of the interaction between proteoglycans and Na+ ions in the extracellular matrix?

The formation of a gel-like structure that resists compression (C) Signup and view all the answers

What is the primary location of protein synthesis in eukaryotic cells?

The cytosol (B) Signup and view all the answers