Unit 2 ONQ

Front

What is the primary function of ribosomes in cells?

Back

Ribosomes are responsible for synthesizing proteins.

Front

What type of molecules require facilitated diffusion to enter the cell membrane?

Back

Large, polar molecules require facilitated diffusion.

Front

What are aquaporins?

Back

Aquaporins are channel proteins that facilitate the transport of water across cell membranes.

Front

Where are proteins modified, packaged, and sorted after synthesis?

Back

Proteins are modified, packaged, and sorted in the Golgi Bodies.

Front

What evidence supports the endosymbiotic theory regarding mitochondria?

Back

Mitochondria are surrounded by a double membrane, suggesting they evolved from prokaryotic cells.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which molecules pass through the cell membrane via channel or carrier proteins.

Front

What is the role of the Golgi apparatus in a cell?

Back

The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Front

What is the significance of the double membrane in mitochondria?

Back

The double membrane is evidence of the evolutionary origin of mitochondria from prokaryotic cells.

Front

What types of molecules can pass through the cell membrane without assistance?

Back

Small, non-polar molecules can pass through the cell membrane without assistance.

Front

What is the function of the CFTR protein?

Back

The CFTR protein regulates the movement of chloride ions across epithelial cell membranes.