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प्रश्न
Tick the most appropriate answer.
The opening of the urinary bladder is called
विकल्प
nephron
uriniferous tubule
urethra
nephridia
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उत्तर
urethra
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संबंधित प्रश्न
Differentiate between the following pairs of term :
Urea and urine
“Kidneys are the master chemist of the body”. Comment.
Differentiate between:
Excretion and Egestion
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.
The snakes living in desert are mainly ______.
Answer the following question.
Why are kidneys called 'retroperitoneal'?
The process by which the body removes waste is ______.
Identify the structures present in the cortex of the kidney.
Select the INCORRECT match.
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.
