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Draw the Hb disocciation curve. Why is it that shape? How is it different in the foetus?

1) Draw and label the axes! x= O 2 partial pressure; y= % saturation/occupancy 2) Sigmoid curve (plateau at 100%) 3) Describe the curve, i.e. rate increases, stays level, then decreases. Shows binding cooper...
GB
2141 Views

Find the vector equation of the line of intersection of the planes 2x+y-z=4 and 3x+5y+2z=13.

The line of intersection will be parallel to both planes. We can write the equations of the two planes in 'normal form' as r.(2,1,-1)=4 and r.(3,5,2)=13 respectively. We can then read off the normal vectors ...
RS
21457 Views

In terms of particles, explain how resistance arises in metal conductors and why does this resistance increases with temperature.

Resistance is due to the collision of free electrons with the metal ions of the conductor. When the temperture increases, the metal ions have more energy and vibrate. This increases the frequency of collisio...
RR
Answered by Rhys R. • Physics tutor
14213 Views

The polynomial f(x) is define by f(x) = 3x^3 + 2x^2 - 8x + 4. Evaluate f(2).

f(x) = 3x^3 + 2x^2 - 8x + 4 f(2) = 3(2)^3 + 2(2)^2 - 8(2) + 4 f(2) = 3(8) + 2(4) - 8(2) + 4 f(2) = 24 + 8 - 16 +4 f(2) = 20
SW
Answered by Sophie W. • Maths tutor
4438 Views

What is the difference between vertical and horizontal transmission of antibiotic resistance between bacteria?

Vertical transmission occurs during asexual reproduction. During the cell cycle, a bacterium will replicate its DNA (found in the form of a circular plasmid) which will contain the gene for antibiotic resist...
AA
Answered by Annabelle A. • Biology tutor
17149 Views