Kit Library / Science / Biology
⚡ Topic Learning KitShared by a Veda learner · Generated with Veda AI
Veda Bites are swipeable micro-lessons — each one teaches exactly one idea. Here's a taste from this kit; the app has the full deck.
Your body makes waste just by living.
Excretion is the removal of harmful nitrogenous metabolic wastes produced inside the body — it is not the same as egestion of undigested food.
↳ Excretion removes wastes made by cells; egestion removes food that was never absorbed.
Five kinds of waste leave your body.
↳ Excretory products fall into five groups: respiratory waste, nitrogenous waste, mineral salts, water, and bile pigments.
Three nitrogen wastes, three toxicity levels.
↳ More toxic the waste, more water needed to excrete it — humans use urea as a balance.
The excretory system removes metabolic wastes from the body, with the human kidney as its central organ. This topic covers types of excretory products, kidney structure and blood supply, urine formation, osmoregulation,…
~15 min · full explanation, examples & memory tricks in the app
36 questions laddered from warm-up to topper-level, each with an explanation. A taste:
Which of the following is NOT a nitrogenous waste product?
BeginnerCarbon dioxide
Carbon dioxide is a respiratory waste product, not a nitrogenous one. Urea, ammonia, and uric acid all contain nitrogen.
In which organ is urea actually formed?
BeginnerLiver
Urea is formed in the liver by deamination of excess amino acids. The kidney only removes it.
The functional unit of the kidney is the:
BeginnerNephron
The nephron is the functional unit of the kidney; each kidney contains about a million of them.
Which structure carries urine from the kidney to the urinary bladder?
BeginnerUreter
Ureters are two narrow tubes that carry urine from each kidney to the bladder by peristalsis.
40 flashcards in this kit — the app reviews them with spaced repetition so the right card returns on the right day.
Every game is built from this kit's own content — scores feed your mastery, so playing counts as studying.
The full Veda Bites deck, complete notes, spaced-repetition flashcards, leveled MCQs, tests and games for this kit — plus Daily Facts and the Arena, every day.
