Practice current Texas science concepts, models, investigations and evidence with selected TEKS connections.
Independent, original skill practice with selected TEKS connections. These shorter banks cover each tested subject and major content category, but not every assessed standard or official item format. They are not official STAAR tests, SST simulations, adaptive tests, or score predictions.
18 original questions and tasks. Written responses use task-specific self-review checklists and examples, without automatic scoring. Original classroom stories and hypothetical data are fictional; historical sources and paraphrases are identified individually.
Request a hint when you need one. All levels use the same original questions.
Feedback reviewed for 0 of 18 questions in this selection. This is practice, with no official score.
Question 1 of 18 · Biological Structures, Functions, and Processes
Compare cell organization · Curriculum connections: B.5(B)
Original classroom material; people, sources and data are fictional.
Original classroom models. Cell P contains DNA and ribosomes but no membrane-bound nucleus. Cell E contains DNA in a membrane-bound nucleus and has mitochondria. A third model shows a tissue whose cells divide repeatedly despite signals that normally stop cell division.
Research reviewed October 1, 2026. Use the official practice platform to learn the state's question formats and testing tools. Your school confirms dates, participation and individual supports.
