2022 STAAR Questions TEK 4A, 4B, 4C

Which statement best describes how a virus replicates?

• A virus divides into two identical virus particles before infecting the

  host cell.

• A virus enters a host cell and uses the materials from the host cell

  to produce new virus particles.

• Multiple virus particles fuse and form a large particle that breaks

  apart, releasing 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.

Note: The drawings are not to scale.

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?

• Nuclei are building amino acids for energy storage.

• Ribosomes are building carbohydrates to increase energy output.

• Chloroplasts are using energy to produce oxygen.

• Mitochondria are using oxygen to produce ATP.

A table comparing the characteristics of four samples is shown.

Which sample most likely contains viruses?

• Sample 1

• Sample 2

• Sample 3

• Sample 4