SureDen
Introduction:
Some substance must heed to be eliminated out of body like ammonia, Uric acid, Uria, Co2, water, either or by other means
Human Excretory System:
Excretory organs:
Homeostasis: The process of maintaining a constant body temperature to maintain all system and process in
Additional Excretory organs:
Skin: Many aquatic organisms excrete ammonia through skin ex. Starfish. Mammals loose small amo
Phylum : Annelida
Class : Oligochaeta
Order : Terricolar
Blood supply in kidney:
Kidney related problems:
Uremia: Presence of excess amount of urea in blood due to which excretion of urea is cells of body
Urine Formation:
The process of formation of urine is called Uropoiesis. This process involves three steps:
Osmo-regulatory role of kidney:
Water: Excess of water in blood increases the volume of
Nephrons:
It is the structural and functional unit of a kidney. It is a tube like structure. They increase surface area in kidney for more urine fo
Counter Current Mechanism:
Henle’s loop and Vasa recta plays on important role in this mechanism.
Vasa recta: Vas
Juxta glomerular apparatus:
This is a special region formed in DCT (Distal Convoluted tubule). It controls the regulation of glomerular filtr
Glomerular filtration rates:
The amount of filtrate formed by kidney per minute is called GFR. It is about 125 ml per minute, i.e.
Functions of kidney:
Removes urea/uric acid from blood.
Maintains osmo-regulation (ion & water
Cell inclusions
Ergastic, deutoplasmic, paraplasmic bodies are non living, non cytomplasmic substance in vacuoles or cell wall or cytoplasm of euk
Frog
Phylum : Chordata
Sub phylum : Vertebrata
Section : Gnathostomata
Class : Amphibian
Sub cl
Aschelminthes:
Organization: Organ level
Symmetry: Bilateral
Coelom: Pseudo-coelomates
Segmenta
Phylum : Arthoropoda
Class : Insecta
Subclass : Pterygota
Order : Dictyogota
Family : Blattidae
Genus : periplaneta
Mollusca:
Organization: Organ level
Symmetry: Bilateral
Coelom: present (coelomates)
Segmentation: Absent
Steps of holozoic nutrition:
(1) Ingestion→ It is a process of intake of food materials. In case of holozoic nutrition, food
Adaptations
Any morphological, physiological and behavioural attribute of the organism that enables it to survive
Pregnancy:
Some finger-like projections appear on the trophoblast called chorionic villi which are surrounded by the uterine
Annelida:
Organization: Organ level
Symmetry: Bilateral
Coelom: present (coelomates)
Segmentati
Porifera:
Organization: Cellular level
Symmetry: Various type
Coelom: Absent
Segmentation: Abse
Platyhelminthes:
Organization: Organ level
Symmetry: Bilateral
Coelom: Absent
Segmentation: &nb
Arthropoda:
Organization: Organ level
Symmetry: Bilateral
Coelom: present (coelomates)
Segmentat
Echinodermata:
Organization: Organ level
Symmetry: Radial
Coelom: present (coelomates)
Segmentation:
Hemichordata:
Organization: Organ level
Symmetry: Bilateral
Coelom: present (coelomates)
Segmentation
Coming Soon...