Close reading passage - Prokaryotic

What is the approximate number of bacterial cells living in and on the human body?

• 100 trillion

• 10 million

• 1 billion

• 500 million

Which of the following is NOT a characteristic of prokaryotic cells?

• Presence of a nucleus

• Lack of membrane-bound organelles

• Single-celled organisms

• Circular chromosome

The plasma membrane is an outer covering that separates the cell’s interior from its surrounding ___.

Tags

NGSS.MS-LS1-2

What is the main component of the bacterial cell wall?

• Peptidoglycan

• Cellulose

• Chitin

• Lignin

Prokaryotic cells are typically smaller than eukaryotic cells, ranging from ___ to 5.0 micrometers in diameter.

What is the function of flagella in bacteria?

• Movement

• Photosynthesis

• Protein synthesis

• DNA replication

Tags

NGSS.MS-LS1-2

The surface-area-to-volume ratio is important because the plasma membrane is the cell’s interface with the ___.