MEDIUM
12th Tamil Nadu Board
IMPORTANT
Earn 100

Statement (S): Natural killer cells form the body's most important cells of defence, and they destroy the infected cells or altered self cells in an antibody-independent manner.

Reason (R): The reaction time of NK cells is fast as they are always in an active form to identify and destroy even small cancer cells well before they form a tumor.

Which of the following is true?

6.67% studentsanswered this correctly

Important Questions on Immunology

EASY
12th Tamil Nadu Board
IMPORTANT
Zoology Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Immunology>Exercise>Q 27

Match the following about immune system

List I List I
A Complement proteins I Stimulate phagocytosis
B Tc cells II Microglia in brain
C Cytokines III Inflammation
D Mononuclear phagocytes IV Membrane attack complex
    V Cell mediated immunity

The correct answer is

MEDIUM
12th Tamil Nadu Board
IMPORTANT
Zoology Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Immunology>Exercise>Q 28
Natural killer cells originate from
HARD
12th Tamil Nadu Board
IMPORTANT
Zoology Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Immunology>Exercise>Q 29

Study the following statements:
I) The largest endocrine gland of man secretes adrenalin.
II TH cells are involved in humoral and cell mediated immunity.
III) Natural Killer cells are a type of lymphocytes.
IV) TC cells are involved in humoral immunity.

Pick up the correct statements.

MEDIUM
12th Tamil Nadu Board
IMPORTANT
Zoology Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Immunology>Exercise>Q 30
Where are B-cells and T-cells formed? How do they differ from each other?
HARD
12th Tamil Nadu Board
IMPORTANT
Zoology Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Immunology>Exercise>Q 31
What would happen to immune system, if thymus gland is removed from the body of a person?
HARD
12th Tamil Nadu Board
IMPORTANT
Zoology Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Immunology>Exercise>Q 32
Many microbial pathogens enter the gut of humans along with food. What are the preventive barriers to protect the body from such pathogens? What type of immunity do you observe in this case?
MEDIUM
12th Tamil Nadu Board
IMPORTANT
Zoology Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Immunology>Exercise>Q 33
Why is mother's milk considered the most appropriate food for a newborn infant?
MEDIUM
12th Tamil Nadu Board
IMPORTANT
Zoology Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Immunology>Exercise>Q 34
What are interferons? How do interferons check infection of new cells?