Cell Biology: Organelles and Vesicles

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What is the primary function of the Golgi apparatus?

To break down nutrients and cellular waste
To generate energy for the cell through cellular respiration
To store genetic information and reproduce
To modify and package proteins for transport and secretion (correct)

What is the primary function of the centrosome in cell division?

To synthesize proteins
To distribute chromosomes (correct)
To maintain cell shape
To regulate cell signaling

What is the purpose of the cristae in the mitochondria?

To regulate cell growth
To increase the surface area for cellular respiration (correct)
To increase the surface area for protein synthesis
To store genetic information

What is the main difference between lysosomes and peroxisomes?

The type of enzymes they contain (C) Signup and view all the answers

What is the main component of the nucleoplasm?

RNA and DNA (C) Signup and view all the answers

What is the process called when a vesicle formed in the Golgi apparatus releases its contents to the outside of the cell?

Exocytosis (C) Signup and view all the answers

What is the structure that allows sperm cells to swim towards the egg cell?

Flagella (D) Signup and view all the answers

What is the function of vesicles in the cell?

To store or transport substances within or between cells (A) Signup and view all the answers

What is the site of ribosome production in the nucleus?

Nucleolus (A) Signup and view all the answers

What is the term for the condensed form of DNA present during cell division?

Chromosomes (B) Signup and view all the answers

What is unique about the mitochondria in terms of reproduction?

They have their own DNA and can reproduce by dividing (A) Signup and view all the answers

What is the function of short cilia found on the surface of certain epithelial cells?

To move fluids (A) Signup and view all the answers

What is the main function of the nucleus in a cell?

To direct cell's activities and contain DNA (A) Signup and view all the answers

What is the main component of the cell membrane?

Lipids and proteins (B) Signup and view all the answers

What is the function of the cytosol?

To suspend organelles and fluids in the cytoplasm (D) Signup and view all the answers

What type of proteins are found in the cell membrane and protrude on both sides?

Transmembrane proteins (A) Signup and view all the answers

What is the function of the endoplasmic reticulum?

To function as a transport network throughout the cell (D) Signup and view all the answers

What is the main function of ribosomes?

To provide structural support and enzyme activity for protein synthesis (A) Signup and view all the answers

What is the function of glycoproteins in the cell membrane?

To help identify cells as 'self', protecting them from attack by the immune system (A) Signup and view all the answers

What is the characteristic of the cell membrane that allows it to regulate the movement of substances in and out of the cell?

It is selectively permeable (B) Signup and view all the answers

What is the function of the cell membrane in signal transduction?

To participate in signal transduction, a method of communication with other cells (C) Signup and view all the answers

What type of molecules can pass through the phospholipid portion of the cell membrane?

Lipid-soluble molecules (B) Signup and view all the answers