Quiz on Immune System

What is the primary function of the immune system in animals?

• Transporting oxygen throughout the body

• Breaking down food for energy

• Protecting the body from pathogens and diseases

• Producing hormones for growth

Which of the following is an example of innate immunity?

• Production of antibodies after vaccination

• White blood cells attacking a virus

• Skin acting as a barrier against bacteria

• Memory cells recognizing a previous infection

What type of immunity do mammals have?

• Innate only

• Adaptive only

• Innate and Adaptive

• Passive immunity only

Which lymphoid organ is unique to birds and plays a key role in their adaptive immunity?

• Thymus

• Spleen

• Bursa of Fabricius

• Lymph nodes

What is the role of antibodies in the immune system?

• Digesting food molecules

• Neutralizing and marking pathogens for destruction

• Transporting nutrients in the bloodstream

• Producing white blood cells

Which immune response is faster but less specific?

• Adaptive immunity

• Innate immunity

• Humoral immunity

• Passive immunity

What is the main difference between invertebrate and mammalian immune systems?

• Invertebrates have adaptive immunity, while mammals rely on innate immunity only

• Mammals have both innate and adaptive immunity, while invertebrates rely only on innate immunity

• Invertebrates produce antibodies faster than mammals

• Mammals lack memory cells, while invertebrates have them

What type of cell is responsible for producing antibodies in mammals?

• T-cells

• Red blood cells

• B-cells

• Macrophages

Which of the following is NOT part of the innate immune system?

• Skin

• Mucous membranes

• Antibodies

• Inflammatory response

What is the role of memory cells in the immune system?

• Attacking and destroying all bacteria in the body

• Providing a faster and stronger response to previously encountered pathogens

• Producing enzymes for digestion

• Preventing nutrient absorption