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प्रश्न
Define the following term:
urea
उत्तर
Urea - A nitrogenous waste produced primarily in the liver due to the break down dead protein remains and extra amino acids.
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संबंधित प्रश्न
Name the following:
Cortical portions projecting between the medullary pyramids in the human kidney.
Find the odd one out. Give a reason for your choice.
tannin, urine, latex, resin
Choose the correct answer:
Physiologically urea is produced by the action of an enzyme ______________
Name the Following
Major excretory organs of man.
Write the functional activity of the following structure: Sweat glands
Column 2 is a list of items related to ideas in Column 1. Match the term in Column 2 with the suitable idea given in Column 1.
| Column 1 | Column 2 | ||
| i | Liver | a | basic unit of the brain |
| ii | Ova | b | stimulated by light |
| iii | Alveoli | c | deoxygenated blood |
| iv | Cochlea | d | part of the sclera |
| v | Vein | e | haploid cell |
| vi | Neuron | f | blind sacs |
| vii | Stomata | g | found in the kidney |
| viii | Grana | h | audio receptors |
| i | diffusion of gases | ||
| j | breakdown of proteins | ||
| k | diploid cell | ||
Choose the correct option.
Bowman’s capsule is located in kidney in the _______.
The point where the ureter arises from the kidney to where it opens into the urinary bladder is about ____________ cm.
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.
