(English Medium) ICSE Class 10 - CISCE Important Questions for Biology

the biological/technical terms for the hormone increasing reabsorption of water by kidney tubules

The diagram given below shows a section of human kidney. Study the diagram carefully and answer the questions that follow :

(i) Label the parts numbered 1 to 4.
(ii) Why does part ‘2’ have a striped appearance?
(iii) What is the fluid that passes down part ‘4’? Name the main nitrogenous waste present in it.
(iv) Mention the structural and functional units of kidneys.
(v) Name the two major steps in the formation of the fluid mentioned in Q.5 (a) (iii).

The diagram given below shows the male urinogenital system of a human being. Study the diagram and answer the questions that follow:

(i) Label the parts numbered 1 to 8.
(ii) Name the corresponding structure of part (4) in female  reproductive system.
(iii) What is the role of part 7?

Explain Selective reabsorption

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

(i) Label parts 1, 2, 3 and 4.
(ii) State the reason for the high hydrostatic pressure in the glomerulus.
(iii) Name the blood vessel which contains the least amount of urea in this diagram.
(iv) Name the two main stages of urine formation.
(v) Name the part of the nephron which lies in the renal medulla.

Correct the following statements by changing the underlined words:

The normal pale yellow colour of the urine is due to the presence of the pigment Melanin.

Blood in the renal artery or renal vein (Which one has more urea ?)

Give appropriate biological or technical terms for the following:

The process of maintaining water and salt balance in the blood.

The diagram given below is that of a structure present in a human kidney.

Study the same and answer the questions that follow:

1) Name the structure represented in the diagram

2) What is the liquid entering part ‘1’ called?

Name two substances present in this liquid that are reabsorbed in the tubule.

3) What is the fluid that comes to part ‘2’ called?

Name the main nitrogenous waste in it.

4) Mention the three main steps involved in the formation of the fluid mentioned in (iii) above

5) Name the substance which may be present in the fluid in part ‘2’ if a person suffers from Diabetes mellitus.

Differentiate between the following pair on the basis of what is indicated in the bracket.

Ureter and Urethra [function]

Define the following term:

Ultrafiltration

 Correct and rewrite the statements by changing the biological term that is underlined for the statement: 
The kidney is composed of number of neurons. 

Differentiate between Afferent arteriole and Efferent arteriole.

The pigment that gives colour to urine:

The pale yellow colour of normal human urine is due to the pigment ______.

Name the following:

The main nitrogenous waste formed in the body.

Assertion (A): We urinate more in summer.

Reason (R): Sweat glands are more active in summer.

Give one example of a diuretic substance.

Differentiate between diabetes mellitus and diabetes insipidus (hormones involved).

Marine fish when placed in tap water bursts because of:
A. Endosmosis
B. Exosmosis
C. Diffusion
D. Plasmolysis