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A healthy adult human excretes (on an average) _______ gm of urea/day. - Biology

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प्रश्न

A healthy adult human excretes (on an average) _______ gm of urea/day.

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उत्तर

A healthy adult human excretes (on an average) 25–30 gm of urea/day.

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अध्याय 19: Excretory Products and their Elimination - Exercises [पृष्ठ २८९]

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एनसीईआरटी Biology [English] Class 11
अध्याय 19 Excretory Products and their Elimination
Exercises | Q 12.4 | पृष्ठ २८९

संबंधित प्रश्न

Ascending limb of Henle’s loop is ______ to water, whereas the descending limb is ______to it.


One of Harry’s organs is not functioning properly. There is extra fluid build up in his body causing swelling in his ankles and feet. 

What should Harry do? Tick the correct answer. 

He should see a 


Which one of the following in real sense is NOT an excretory activity?


 The diagram given below represents an organ system in the human body. Study the same and answer the questions that follow :

Identify the system 


What is excretion? Give names of excretory organs.

Given below is the figure of certain organs and associated parts in the human body. Study the same and answer the question that follow:

Name the two main organic constituents of the fluid that flows down the part labeled '3'.


The given diagram represents a nephron and its blood supply. Study the diagram and answer the following question :

Name the part of the nephron which lies in the renal medulla.


 Draw a well-labeled diagram of the human excretory system.


Explain the Term: Malpighian body


Write the functional activity of the following structure: Adrenal gland


Multiple Choice Question: Excretion commonly involves


Choose the correct option.

In reptiles, uric acid is stored in ______.


Three layers of smooth muscles known as detrusor muscles are present in ____________.


Flame cells are present in ______.


The filtration units of kidneys are called


Where does the selective reabsorption of Glomerular filtrate take place?


The following abbreviations are used in the context of excretory functions, what do they stand for?

DCT


Explain the role of kidney in hormone secretion.


Kidneys are vital organs for survival. Several factors like infections, injury or restricted blood flow to kidneys reduce the activity of kidneys. This leads to the accumulation of poisonous wastes in the body, which can even lead to death. In case of kidney failure, an artificial kidney can be used. An artificial kidney is a device to remove waste products from the blood through dialysis.

i. a. Name the artery that brings oxygenated blood to the kidney.

b. Name the cluster of the thin-walled blood capillaries present in the Bowman's capsule.

ii. In the human excretory system, name the organ which stores urine. Is this organ under hormonal control or nervous control?

iii. List two major steps involved in the formation of urine and state in brief their functions.

OR

iii. In which part of the nephron does selective reabsorption take place? List the factors which the amount of water reabsorbed depends on.


The organ that does not belong to the excretory system:


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