Difficulty: Medium

Average Score: 64%

Which of the following statements is false?

Rationale

Animal cells use chloroplasts to gain energy.

This statement is false because chloroplasts are not found in animal cells; they are present in plant cells and some protists, where they facilitate photosynthesis to convert light energy into chemical energy.

A (Animal cells use lysosomes to break down old cells) YOUR ANSWER

This statement is true. Lysosomes are organelles in animal cells that contain enzymes responsible for digesting and recycling cellular waste, damaged organelles, and macromolecules, thus playing a crucial role in cellular maintenance.

B (Animal cells use chloroplasts to gain energy) CORRECT

This statement is false. Chloroplasts are the sites of photosynthesis in plant cells, enabling them to convert sunlight into energy. Animal cells, on the other hand, rely on mitochondria to generate ATP through cellular respiration, as they do not possess chloroplasts.

C (Plant cells have a cell wall to maintain structure) YOUR ANSWER

This statement is true. Plant cells are surrounded by a rigid cell wall made of cellulose, which provides structural support, protection, and helps maintain turgor pressure, distinguishing them from animal cells that lack this feature.

D (All of the above are true) YOUR ANSWER

This statement is false because option B is incorrect. Since not all statements are true, this option cannot be accurate.

Conclusion

In summary, the false statement among the choices provided is that animal cells use chloroplasts to gain energy, as these organelles are absent in animal cells. Instead, animal cells utilize mitochondria for energy production. The other statements correctly describe the functions of lysosomes in animal cells and the presence of cell walls in plant cells, illustrating the distinct characteristics and functions of these different cell types.

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