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How does the body's response to a second infection by a bacterial pathogen differ from the first? (3 marks)

faster response due to the presence of memory cells

there are many more cells specific for this pathogen therefore clonal selection and expansion of B cells is quicker

BT
Answered by Beth T. • Biology tutor
2908 Views

Explain the role of inorganic ions in the body.

The resting membrane potential of cells is maintained by the actions of Na+ and K+. A resting cell is impermeable to Na+ so the concentration of Na+ is greater outside the cell than in it. However the cel...

Answered by Callum D. • Biology tutor

7569 Views

Find the stationary point of 3x^2+7x

dy/dx=6x+7

6x+7=0

x=-7/6

Sub back into original equation; y=98/6

Answered by Harrie S. • Further Mathematics tutor

2698 Views

Solve the simultaneous equations; 3x+2y=11 and 2x-2y=14

2y=11-3x and 2y=2x-14

11-3x=2x-14

25=5x thus x=5

3(5) +2y=11

2y=-4 thus y=-2

Answered by Harrie S. • Maths tutor

7317 Views

What is the Bill of Rights?

The Bill of Rights is a document comprising of the first ten amendments to the US Constitution, published by James Madison in 1789. These ten amendements are the basis for the Protection of Individual Rig...

Answered by Daniel G. • Government and Politics tutor

2905 Views