Question

Crawling cells produce broad, thin protrusions known as ________ and pointed structures called ________ at the leading edge of the cell.

Answer 1

Crawling cells produce protrusions called pseudopodia and pointed structures known as filopodia at the leading edge to aid in cell motility.The correct anwers is pseudopodia and filopodia

Step-by-step explanation:

Crawling cells produce broad, thin protrusions known as pseudopodia (meaning "false feet") and pointed structures called filopodia at the leading edge of the cell. Pseudopodia are temporary extensions of the cytoplasm and plasma membrane that play a critical role in cell motility and are associated with the actin cytoskeleton. The actin filaments polymerize to push the membrane forward, forming the pseudopodium, and then the rest of the cell's cytoplasm flows into this extension allowing the cell to effectively crawl forward. Filopodia, on the other hand, are long and thin protrusions that extend beyond the leading edge of the cell, often aiding in cellular sensing and adherence to the substrate.

Cells also possess microtubules that make up structures known as cilia and flagella, which are related to cell movement and transportation of materials across the cell's surface. However, these are not the structures responsible for producing the broad, thin protrusions and pointed structures at the leading edge of crawling cells.

The correct anwers is pseudopodia and filopodia