Eukaryotic Cells

What is a key feature of eukaryotic cells?

• DNA in a membrane-bound nucleus

• Presence of a cell wall in all eukaryotes

• Lack of organelles

• DNA in a loop structure

Which organisms are examples of eukaryotes?

• Bacteria and archaea

• Animals, plants, and fungi

• Viruses and bacteria

• Algae and protozoa only

What is the role of histones in eukaryotic cells?

• They help in DNA packaging

• They are involved in protein synthesis

• They are part of the cell wall

• They form the cell membrane

Which organelle is NOT membrane-bound?

• Ribosomes

• Mitochondria

• Chloroplasts

• Golgi apparatus

What is the function of the cell surface membrane?

• To store genetic information

• To control molecule passage in and out of the cell

• To synthesize proteins

• To provide energy to the cell

What is the cell wall in plant cells made of?

• Lipids

• Protein

• Cellulose

• Chitin

Which of the following is a membrane-bound organelle?

• Nucleus

• Ribosome

• Centriole

• Cytoskeleton

What is the composition of the cell wall in fungi?

• Cellulose

• Lignin

• Chitin

• Peptidoglycan

Which of the following is true about eukaryotic ribosomes?

• They are membrane-bound

• They are smaller than prokaryotic ribosomes

• They are 80S ribosomes

• They are involved in DNA replication

What is the main function of mitochondria?

• Protein synthesis

• Energy production

• Photosynthesis

• DNA replication