1. Weight of Liver : 1.2 to 1.5 kg 2. Weight of Kidney : 120 | JEE NEET MATERIALS

1. Weight of Liver : 1.2 to 1.5 kg
2. Weight of Kidney : 120 to 170 gm
3. Number of lobes in Liver : 2
4. Number of salivary glands : 3 pairs
5. Number of portions in stomach : 4 (Cardiac, fundic, body & Pyloric).
6. Stomach stores food for : 4 to 5 hours.
7. pH of saliva : 6.8
8. pH of gastric juice : 1.8
9. pH in duodenum : 7.8
10. pH of urine : 6.0
11. Breathing rate : 12-16 times/minute
12. Tidal volume : 500 mL
13. IRV : 2500 - 3000 mL
14. ERV : 1000 - 1100 mL
15. RV : 1100 - 1200 mL
16. Water in plasma : 90-92%
17. Water in watermelon : 92%.
18. Water in herbaceous plants : 85-90%.
19. Water in human cell : 70-90%.
20. Colon is divided in : 4 parts (Ascending, transverse, descending and
sigmoid parts). (NCERT Correction-2019-20)
21. Solubility of CO2
is 20-25 times higher than that of O2
.
22. Diffusion membrane is made up of 3 layers.
23. Total thickness of diffusion membrane : < 1 mm
24. No. of wall layers in alimentary canal (from oesophagus to rectum) : "4"
25. Gastric gland have 3 type of cells : Mucus neck cells, chief cells and
parietal cells
26. Every 100 ml of oxygenated blood can deliver how much O2
to tissues
: 5 mL
27. Every 100 ml of deoxygenated blood delivers how much CO2
to the
4ml