Which characteristic is true of prokaryotic cells?

Rationale

Prokaryotic cells have a capsule.

Prokaryotic cells are known for their simplicity and lack of membrane-bound organelles, but many possess a capsule, which serves as a protective layer that can enhance their ability to survive in various environments.

A (Have a nucleus) YOUR ANSWER

Prokaryotic cells do not have a nucleus; instead, their genetic material is located in a nucleoid region, which is not membrane-bound. This key difference distinguishes them from eukaryotic cells, which contain a defined nucleus encased in a nuclear membrane.

B (Have a capsule) CORRECT

Many prokaryotic cells, particularly bacteria, are surrounded by a capsule made of polysaccharides or proteins. This structure can provide protection against desiccation and phagocytosis by host immune cells and can help in adhering to surfaces, thus playing a critical role in the survival and pathogenicity of the organism.

C (Have membrane-bound organelles) YOUR ANSWER

Prokaryotic cells lack membrane-bound organelles such as mitochondria and endoplasmic reticulum, which are characteristic of eukaryotic cells. Instead, their cellular processes occur within the cytoplasm or at the cell membrane, reflecting their simpler organization.

D (Cannot move on their own) YOUR ANSWER

Many prokaryotic cells are capable of independent movement, often through flagella or other motility structures. This ability to move is essential for finding nutrients, escaping harmful environments, and colonizing new areas.

Conclusion

While prokaryotic cells are defined by their lack of a nucleus and membrane-bound organelles, the presence of a capsule is a notable characteristic that provides them with protective advantages. Unlike eukaryotic cells, prokaryotes display a range of survival mechanisms, including motility and the ability to form capsules, which contribute to their adaptability in diverse environments.

Which characteristic is true of prokaryotic cells?

Prokaryotic cells have a capsule.

Related Questions

Related Quizzes

How familiar were you with this question?

Report an Issue

Rate this Practice Test