Biology STAAR (State of Texas Assessments of Academic Readiness) Practice Test

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Study for the Biology STAAR Test. Improve your skills with flashcards and multiple choice questions, each question is accompanied by hints and explanations. Prepare for success!

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What is the main function of lysosomes in a cell?

Protein synthesis
Energy production
Cell division
Digestive processes

The correct answer is: Digestive processes

Lysosomes play a crucial role in the cell by functioning primarily in digestive processes. These organelles contain a variety of enzymes that break down waste materials, cellular debris, and foreign invaders, such as bacteria. By digesting these components, lysosomes help keep the cell clean and functioning optimally. They are involved in the degradation of macromolecules, recycling cellular components, and maintaining overall cellular health. In addition to this core function, lysosomes also participate in programmed cell death (apoptosis) and can help in the defense against pathogens, making them vital for the proper maintenance and survival of the cell. Their role in digestion allows the cell to efficiently handle and recycle substances, which is essential for homeostasis and energy management within the cell environment.