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प्रश्न
Put a tick mark (✓) against the most appropriate alternative in the following statement :
The kidneys are made up of tiny tubular units called :
पर्याय
glomerulus
nephrons
capillaries
neurons
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उत्तर
nephrons
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संबंधित प्रश्न
Ascending limb of Henle’s loop is ______ to water, whereas the descending limb is ______to it.
Tick the most appropriate answer.
Transpiration is affected by
Name the main nitrogenous metabolic waste excreted out by mammals including humans.
Choose the odd one out in the following serie:
Urea, uric acid, haemoglobin.
Choose the Odd One Out:
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 | ||
Arrange the excretory system in the correct sequence.
(Urinary bladder, Ureter, Kidney, Urethra).
The collecting tubule of the kidney is important as it helps in ______.
The function of PCT of the kidney is ______.
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.
