- Messages
- 140
- Reaction score
- 106
- Points
- 53
Help in question
http://olevel.sourceforge.net/papers/9700/9700_s13_qp_11.pdf
Q27, 32, 33, 34, 39.
Answer is
27B
32D
33A
34A
39A (I dont understand why is nitrogen fixation is aerobic, I thought it has nitrogenase, why need anaerobic condition?)
#27
uhm you kind of have to read this yourself, specify your question abit more and I might be able to help you.
#32
haemoglobin only binds with O2, CO, H+, does not bind with HCO3-, so #4 is immediately wrong.
the affinity is CO>H+>O2. so CO and H+ will displace O2 from oxyhaemoglobin.
#33
COPD is irreversible so answer is A.
There is no way you can replace the elastic bands on alveoli, no way you can clean your lung, no way you can replace the tissue in your trachea.
#34
coronary bypass is when a coronary artery is blocked, so you place a vein between the blocked area of the coronary artery to allow alternate pathway for the blood.
It is not to divert the blood, because the blood does not path through the blocked coronary artery at all anymore.
#39
nitrogen fixation is N2 into NH4+ or NH3, no oxygen is required, hence anaerobic