Question

1. ★ staar question ★

a table comparing the characteristics of four samples is shown.
select the sample below that most likely contains a virus.

sample	nucleus	chloroplast	ribosome	size of genome
	absent	absent	present	4.6 million base pairs
	absent	absent	absent	170,000 base pairs
	present	absent	present	3.2 billion base pairs

1. ★ staar question ★

materials are provided to students to build models of a prokaryotic cell, a eukaryotic cell, and a virus. the material and the structures are listed in the table shown.

material	structure represented
yellow paper net	cytoplasm
purple buttons	ribosomes
blue yarn	genetic material
orange paper circle	nucleus

which material will students use in all these models?

○ yellow paper net
○ blue yarn
○ green paper bag
○ purple buttons

Explanation:

For question 12: Viruses lack cellular structures like nuclei, chloroplasts, and ribosomes, only having genetic material. Sample 3 has no nucleus, chloroplast, or ribosome, matching viral characteristics.
For question 13: Prokaryotes, eukaryotes, and viruses all contain genetic material. The blue pipe represents genetic material, so it is used in all models.

Answer:

1. Sample 3
2. Blue pipe