Excretory System Notes: Definitions & Explanations PDF | Download eBooks
Study Excretory System lecture notes PDF with biology definitions and explanation to study What is Excretory System?. Study excretory system explanation with biology terms to review biology course for online degree programs.
Excretory System Definition:
A system comprising of kidneys, ureters, urinary bladder, urethra is called the excretory system.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Excretory System Notes:
The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body. The dual function of excretory systems is the elimination of the waste products of metabolism and to drain the body of used up and broken down components in a liquid and gaseous state. In humans and other amniotes most of these substances leave the body as urine and to some degree exhalation, mammals also expel them through sweating.
Keep Learning with Biology Notes
What is Nucleoid?
Prokaryotes do not have a nucleus. Instead their DNA is concentrated in a region inside the cytoplasm called the nucleoid. ...
What is Nucleic acid hybridization?
Single-stranded deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) molecules anneal to complementary DNA or RNA. Though a double-stranded DNA sequence ...
What is PH?
A scale of acidity to specify how basic or acidic a solution is. It is usually measures from 1 to ...
What is Stem cell?
A stem cell is a cell with the unique ability to develop into specialized cell types in the body. In ...
What is Grana?
A typical chloroplast can have anywhere from 10 to 100 grana. It is the primary site where the photosynthesis takes ...
What are Neurons?
A neuron, also known as a nerve cell, is an electrically excitable cell that communicates with other cells via specialized ...
