Cell Structure and Function

Which feature is absent in prokaryotic chromosomes?

• Circular DNA
• Double-stranded DNA
• DNA attached to membrane
• Centromere

What is the structure of the chromosome in prokaryotic cells?

• Linear and associated with histones
• Multiple linear chromosomes
• Circular and not associated with histones
• Linear with centromeres

How do ribosomes differ between eukaryotic and prokaryotic cells?

• Both have 80S ribosomes
• Eukaryotic cells have 70S; prokaryotic cells have 80S
• Eukaryotic cells have 80S ribosomes; prokaryotic cells have 70S ribosomes
• Both have 70S ribosomes

What type of organelles are present in eukaryotic cells but absent in prokaryotic cells?

• Mesosomes only
• 70S ribosomes
• Double-membraned organelles like mitochondria and chloroplasts
• Nucleoid region

Which of the following structures is present in plant cells but typically absent in animal cells?

• Plasma membrane
• Mitochondria
• Large central vacuole
• Ribosomes