Biology STAAR

This reporting category is all about cells! Cell Division, cell types, cell organelles,cell transport cells cells cells! Oh, and Viruses

Reporting Category 1 2022 STAAR

Multiple Choice

2. 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.

Multiple Choice

10. When a stem cell divides, it produces two daughter cells. One

daughter cell will remain a stem cell, while the other daughter cell will

differentiate into a specialized cell.

Which factor will most directly determine what type of specialized cell

will be produced?

• The size of the cell

• The length of the cell cycle

• The number of chromosomes that are replicated

• The genes that are expressed

All diploid cells belonging to the same multicellular organism have the same, full set, of DNA.

Each cell has certain genes turned on or off depending on the cell's job, allowing the cell to only make the proteins it needs.

​

Gene Expression/ Cell Differentiation

Multiple Choice

12. Scientists determined the total mass of DNA from a sample of animal

cells. The masses of equal numbers of cells were taken during three

different stages of the cell cycle. Stage I contains cells massed during

G1 of the cell cycle.

Which statement best describes the cells during Stage II?

• The cells have replicated their DNA, but have not completed mitosis

  and cytokinesis.

• The cells have completed mitosis and cytokinesis without

  replicating their DNA.

• The cells have replicated their DNA and completed mitosis

  and cytokinesis.

• The cells have temporarily exited the cell cycle without replicating

  their DNA.

Multiple Choice

14. Which type of movement across a cell’s plasma membrane requires

energy supplied by ATP?

• Passive transport

• Simple diffusion

• Active transport

• Osmosis

Multiple Choice

21. 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

Multiple Choice

26. 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.

Multiple Choice

32. A table comparing the characteristics of four samples is shown.

Which sample most likely contains viruses?

• Sample 1

• Sample 2

• Sample 3

• Sample 4

Multiple Choice

35. Which model accurately shows a cell progressing through mitosis?

Multiple Choice

37. Normal cells have a contact inhibition feedback mechanism that

prevents the cells from replicating when other cells are touched.

A diagram of cells with contact inhibition and cells without contact

inhibition is shown.

Which statement best describes what will happen to cells in an

organism that lack contact inhibition?

• A The cells will continue to grow, causing a tumor in the body.

• B The cells will replicate normally, replacing body cells that die.

• C The cells will replicate until the food supply for each cell is used,

  causing each cell to die.

• D The cells will stop replicating once one layer is produced, as other

  body cells will crowd them out.

Multiple Choice

40. Which table best compares the events that occur during different

stages of the cell cycle?