CELL BIO

Who proposed the cell theory between 1839-1848?

• A. van Leeuwenhoek

• T. Schwann

• R. Virchow

• Robert Hooke

Which type of cells evolved from a common ancestral cell that lived over 3 billion years ago?

• Archaea

• Prokaryotic Cells

• Eukaryotic Cells

• Bacteria

What is a common shape among prokaryotes?

• Star-shaped

• Cylindrical

• Cuboidal

• Spherical (cocci)

Which type of bacteria require oxygen for their health and existence?

• Heterotrophs

• Facultative anaerobes

• Anaerobic bacteria

• Aerobic bacteria

What is the process by which bacteria exchange fragments of plasmid DNA?

• Binary fission

• Bacterial conjugation

• Endocytosis

• Exocytosis

Which organelle is the site of photosynthesis in plants?

• Chloroplasts

• Golgi complex

• Endoplasmic reticulum

• Mitochondria

What is the function of lysosomes in a cell?

• Hydrolytic digestion

• Cell division

• Energy production

• Protein synthesis

Which organelle is responsible for cellular respiration?

• Chloroplasts

• Golgi complex

• Endoplasmic reticulum

• Mitochondria

What is the function of the cytoskeleton in a cell?

• Capturing energy in ATP

• Digesting complex molecules

• Photosynthesis

• Maintaining cell shape and internal organization

What is the main characteristic of a virus?

• Replicates only inside living cells

• Performs cellular respiration

• Contains a nucleus

• Has a cell wall