NBC 6 Throwback to Cells

Which is true of prokaryotic and eukaryotic cells?

• Prokaryotic cells are larger than eukaryotic cells.

• Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.

• Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.

• Eukaryotic cells are simpler than prokaryotic cells.

Which statement best describes how a virus replicates?

• A virus divides into two identical virus particles before infecting the host cell.

• Multiple virus particles fuse and form a large particle that breaks apart, releasing new virus particles.

• A virus enters a host cell and uses the materials from the host cell to produce new virus particles.

• Multiple virus particles break down in component parts, which then reassemble into new copies of the virus.

Which type of movement across a cell’s plasma membrane requires energy supplied by ATP?

• Passive transport

• Simple diffusion

• Active transport

• Osmosis

A prokaryotic cell and a eukaryotic cell are shown.

Which characteristic best distinguishes these cells as either prokaryotic or eukaryotic?

• The organization of the genetic material

• The location of the cytoplasm

• The role of the cell membrane

• The function of the flagella

The graph shows the oxygen consumed by an athlete during different stages of training.

Based on the graph, which process is occurring between minute 5 and minute 10?

Answer explanation

You'll notice the use of oxygen is increasing as the athlete is in the exercise phase of the workout. The increase of oxygen used by the mitochondria is producing the energy needed to exercise more rigorously.

Tags

NGSS.HS-LS1-7

A table comparing the characteristics of four samples is shown.

Which sample most likely contains viruses?

• Sample 1

• Sample 2

• Sample 3

• Sample 4