30 



PROTOPLASM AND THE CELL 



CONSTITUENTS OF AN ANIMAL BODY. 



Water 65 per cent. 



f Organic . 



Solids 

 and] 



Albumins 



f Proteins. . -| 



Globulins 



Nucleoproteid 



Chromoproteids 



L Glucoproteids 



Arnolds 



TTI 

 Fats 



Q i 



Enzymes .... 



f Collagen : gelatin. 



I Elastin. 



1 Keratin. 



[ Neurokeratin. 



fOlein. 



j Palmitin. 



} Stearin. 



[ Lecithin, etc. 



f Glycose : dextrose. 



I Saccharose : lactose. 



I 



f Serum albumin. 

 \ Myoalbumin. 

 f Myosin. 

 j Serum globulin. 

 ! Myoglobulin. 

 j Fibrinogen. 

 | Globin. 

 t Crystallin. 



Nuclein. 

 f Hemoglobin. 

 | Hemocyanin. 

 -{ Hemoerythin. 

 j Chlorocruorin. 

 [_ Hematin. 



Mucin, etc. 

 f Ptyalin | Animal 



Amylopsin J diastase 



Pepsin. 



Rennin. 



Lipase. 



Trypsin. 



Erepsin. 



Kinase. 

 , Maltase. 

 ' Saccharose. 



Lactase. 



Emulsin. 



Myrosin. 



Oxidases. 



Desamidase. 



Tyrosinase. 



Urease, 

 [^Thrombin, etc. 



[ [ Animal gum. 



f NaCl, Na 2 CO 8 , NaHCO 3 , NaH 2 PO 4 , NaSO 4 , 

 | CaHP0 4 , CaCl, CaCO 3 , CaP 2 O 8 , CaFl 2 , 

 L "Inorganic" -{ KC1, K 2 HPO 4 , K 2 SO 4 , MgPO 4 , MgCl 2 , 

 I NH 4 C1, SiO 2 , HC1, Fe, Mn, O, CO 2 , 

 L H, N, NH 3 , H 2 S, CH 4 . 



The cytoplasm of a protoplasmic cell is, according to Delage, especially 

 rich in nucleoproteids, in globulins, in lecithin, in cholesterin, in the 

 chlorides and phosphates of potassium, sodium, calcium, and magnesium, 

 and in iron. The first, the nucleoproteids, containing phosphorus, and 

 relatively small in amount, make up the visible structures (fibrils, gran- 

 ules, etc.) of the cytoplasm; while the globulins, containing no phos- 

 phorus, form the amorphous liquid within and around these fibrils or 

 granules. The nucleoplasm contains chromatin (which probably is 

 lecithin and cholesterin in combination with a much larger proportion 

 of nuclein), linin (plastine united with an albuminous substance) making 

 up the finer network (see page 22), and a watery substance con- 

 taining in solution various proteid bodies precipitable by acids and by 

 alcohol. As to the other three classes of albumins, the chromoproteids, 



