Massachusetts MCAS Biology Test 2025 – 400 Free Practice Questions to Pass the Exam

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What cellular component is indicative of a plant cell rather than an animal cell?

Cell membrane

Ribosome

Chloroplasts

The cellular component that is indicative of a plant cell rather than an animal cell is chloroplasts. Chloroplasts are specialized organelles that play a crucial role in photosynthesis, the process by which plants convert light energy into chemical energy stored in glucose. This capability is fundamental to the life of plants, allowing them to produce their own food and generate oxygen as a byproduct.

In contrast, while both plant and animal cells contain a cell membrane, ribosomes, and mitochondria, these components are not exclusive to plant cells. The cell membrane surrounds all cells, ribosomes are present in both plant and animal cells for protein synthesis, and mitochondria are found in both types of cells as the site of aerobic respiration, providing energy. Chloroplasts, however, are unique to plant cells and some protists, setting them apart in terms of structure and function.

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Mitochondria

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