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Prokaryotic Cells: B.Sc. Part II

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Questions and Answers

What is the main characteristic of prokaryotic cells?

Presence of a true nucleus

Containment of DNA within a membrane

Complexity in structure

Presence of a rigid cell wall (correct)

Which organelle is responsible for making proteins in prokaryotic cells?

Ribosomes (correct)

Nucleus

Endoplasmic reticulum

Mitochondria

What is the composition of the genetic material in prokaryotic cells?

Circular DNA contained within the cytoplasm (correct)

Circular DNA contained within a nucleus

Linear DNA contained within a nucleus

Linear DNA contained within the cytoplasm

What is the primary function of the capsule in some bacterial cells?

Protection of the cell and retention of moisture Signup and view all the answers

How many cells make up a prokaryotic organism?

Only one cell Signup and view all the answers

What are the most common shapes of bacteria?

Spherical, rod-shaped, and spiral Signup and view all the answers

Which structure surrounds the cell's cytoplasm and regulates the flow of substances in and out of the cell?

Cell Wall Signup and view all the answers

What is the main function of pili on the surface of bacterial cells?

Help bacteria attach to surfaces Signup and view all the answers

What is responsible for protein production within a bacterial cell?

Ribosomes Signup and view all the answers

Which structure contains the single bacterial DNA molecule?

Nucleoid Region Signup and view all the answers

Where are eukaryotic cells more complex than prokaryotic cells?

In having a nucleus Signup and view all the answers

Which structure is found in eukaryotic cells but not in prokaryotic cells?

Mitochondria Signup and view all the answers

What is responsible for sorting and exporting proteins in eukaryotic cells?

Golgi Apparatus Signup and view all the answers

What is the function of lysosomes or peroxisomes within some eukaryotic cells?

Digest waste Signup and view all the answers

What enables photosynthetic bacteria to obtain nutrition from light?

Chloroplasts Signup and view all the answers

What is the outer covering that protects the bacterial cell and gives it shape?