IMMUNE SYSTEM QUIZ

cytotoxic T cells

none of these

suppresssor T cells

both (a) and (b)

fast flow rate

sIgA

dense resident microbiota

mucus

B one marrow stem cells migrate to the thymus and develop into B cells

B cells can undergo class switching and produce a different antibody type

B cells synthesize antibodies and put them on their cell surface

B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow

T cells

Monocytes

Granulocytes

B cells

All of these

can be attracted to the site of an infection following activation of complement

are a type of phagocyte that can engulf and kill bacteria

are derived from bone marrow stem cells

Antibody proteins can physically change their shape to bind different epitopes

By rearrangements of the DNA encoding the variable regions of the heavy and light chains

Both (a) and (b)

By the combination of different heavy and light chains that form the antigen binding site

sweat

urine

Cerebro spinal fluid (CSF)

saliva

chromosome 17in man, chromosome 6 in mice

chromosome 6 in man, chromosone 21 in mice

chromosome 21 in man, chromosome 6 in mice

chromosome 6 in man, chromosome 17 in mice

A nuclear protein

A cytosolic protein

A protein bound to the endoplasmic reticulum (ER) membrane

A cell surface protein

all of these

tumour rejection

non-specific killing of virus transformed target cells

allograft rejection