Characteristics and Functions of Viruses and Bacteria

Which of the following is an agent of disease?

• Prion

• Antibody

• Red Blood Cell

• Platelet

What is a component of the immune system?

• Innate Immunity

• Red Blood Cells

• Platelets

• Enzymes

Which of the following is a mechanism of innate immune defense?

• Tears

• Antibodies

• Hormones

• Neurons

Which of the following is a characteristic of viruses?

• Nonliving

• Multicellular

• Photosynthetic

• Prokaryotic

Which of the following is a characteristic of bacteria?

• Prokaryotic

• Eukaryotic

• Nonliving

• Multicellular

Which of the following is an example of acquired immunity?

• Vaccination

• Tears

• Nasal Mucosa

• Stomach Acid

Which of the following is a function of phagocytes?

• Engulfing pathogens

• Producing hormones

• Transporting oxygen

• Digesting food

Which of the following is a unique feature of viruses?

• Require a host to replicate

• Can photosynthesize

• Have a cell wall

• Are multicellular

Which of the following is a unique feature of bacteria?

• Have a cell wall

• Require a host to replicate

• Are nonliving

• Are multicellular

Which of the following is a characteristic shared by both viruses and bacteria?

• Can cause disease

• Are multicellular

• Can photosynthesize

• Are nonliving