Unit 2 AP Biology

Front

What is a centriole?

Back

A centriole is a cylindrical structure made of microtubules found only in animal cells, responsible for pulling chromosomes apart during mitosis.

Front

Why is a favorable surface-area-to-volume ratio advantageous for cells?

Back

Higher surface-area-to-volume ratios improve the efficiency of transporting materials in and out of cells.

Front

Where are the hydrophilic regions of a membrane protein most likely found?

Back

The hydrophilic regions of a membrane protein are most likely exposed on the surface of the membrane.

Front

Which of the following is NOT found in both prokaryotic and eukaryotic cells?

Back

Chloroplast.

Front

Where are proteins destined for the membrane synthesized?

Back

Proteins destined for the membrane are made on ribosomes attached to the rough endoplasmic reticulum.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes are responsible for synthesizing proteins by translating messenger RNA.

Front

What is the role of the rough endoplasmic reticulum?

Back

The rough endoplasmic reticulum is involved in the synthesis and processing of proteins that are either secreted from the cell or incorporated into the cell's plasma membrane.

Front

What is the primary function of the cell membrane?

Back

The cell membrane regulates the movement of substances in and out of the cell, maintaining homeostasis.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and various organelles.

Front

What is cytoplasm?

Back

Cytoplasm is the jelly-like substance within a cell that contains organelles and is the site of many metabolic processes.