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What does the Excretory Products and their Elimination revision sheet cover?

Why nitrogenous waste needs a strategy, Three modes of nitrogen excretion, Each strategy, one line, Ammonotelic, Ureotelic, Uricotelic, Modes of excretion across the animal kingdom, One job, four different organs, The human excretory system, an overview, The nephron, region by region, Bowman's capsule, Proximal tubule.

Is this for Class 11 CBSE Biology?

It is written from the NCERT syllabus, so it serves CBSE and any board that follows NCERT for Biology.

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Excretory Products and their Elimination — Class 11 CBSE Biology revision notes

A 4-page visual revision sheet for Excretory Products and their Elimination, written for Class 11 CBSE Biology. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.

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Excretory Products and their Elimination in one look

nitrogen leaves the body in one of three chemical forms, and the kidney is only one of the organs that manage it

Why nitrogenous waste needs a strategy

protein and nucleic acid breakdown releases nitrogen, mainly as toxic ammonia, which the body must remove or convert
how an animal handles that ammonia depends heavily on how much water it can afford to spend
three chemical strategies exist, each a different trade between toxicity and water cost

Each strategy, one line

Ammonotelic: excretes ammonia directly, needs large volumes of water; most bony fish, aquatic amphibians
Ureotelic: converts ammonia to less toxic urea in the liver before excreting it; humans and most mammals
Uricotelic: converts ammonia to nearly insoluble uric acid, excreted as a paste, minimal water lost; birds, reptiles, insects

Modes of excretion across the animal kingdom

not every animal uses a kidney: the organ that filters wastes differs by group, though the underlying job, removing metabolic waste, stays the same
protonephridia (flame cells) in flatworms, nephridia in annelids like the earthworm, malpighian tubules in insects, and kidneys in vertebrates are each a different solution to the same problem

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What this Excretory Products and their Elimination sheet covers

Why nitrogenous waste needs a strategy
Three modes of nitrogen excretion
Each strategy, one line
Ammonotelic
Ureotelic
Uricotelic
Modes of excretion across the animal kingdom
One job, four different organs
The human excretory system, an overview
The nephron, region by region
Bowman's capsule
Proximal tubule
Loop of Henle
Distal tubule
Reading a clearance value
Regulation, hormones that fine-tune urine
Urine output as ADH rises
Disorders of the excretory system
When kidneys fail, dialysis takes over
Traps that cost marks
Tricks that save time

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