Cell membrane in animals is composed mainly of the molecule of
lipids
proteins
lipids and proteins
carbohydrates
Which one is single membrane cell organelle
Endoplasmic reticulam
Mitochondria
Lysosomes
Chloroplast
Which leaves the liver and moves towards kidney
Ammonia
Urea
Glycogen
Bile
B.
Urea
Urea is the main nitrogenous excretory product of ureotelic animals. It is produced by liver cells from deaminated excess amino acid via urea cycle or Omithine cycle. Urea is released outside the body in the form of urine through the kidneys.
Major nitrogenous waste product in ureotelic animals like rabbit and other mammals is
uric acid
urea
ammonia
amino acids