Subject

Biology

Class

ICSE Class 10

Pre Boards

Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

Sample Papers

Download the PDF Sample Papers Free for off line practice and view the Solutions online.
Advertisement

 Multiple Choice QuestionsShort Answer Type

31.

Give the exact location of the following:

(v) Hydathodes

447 Views

32.

Give reasons for the following:

People living in hilly regions usually suffer from simple goitre.

282 Views

33.

Give reasons for the following:

(ii) Urine is slightly thicker in summer than in winter.

274 Views

34.

(b) Give reasons for the following:

(iii) Potato cubes when placed in water become firm and increase in size.

541 Views

Advertisement
Advertisement

35.

Give reasons for the following:

(iv) A matured mammalian erythrocyte lacks nucleus and mitochondria.


A lack of nucleus increases the surface area volume ratio. More erythrocytes can be
accommodated in the same space. At the same time, the oxygen-carrying capacity of
erythrocytes also increases.
Lack of mitochondria ensures that all the oxygen carried by RBCs is transported and delivered to the tissues. Therefore, a mature mammalian erythrocyte lacks a nucleus and mitochondria.

879 Views

Advertisement
36.

Give reasons for the following:

(v) Photosynthesis is considered as a process supporting all life on Earth.

232 Views

37.

With reference to the functioning of the eye, answer the following questions:

(i) What is power of accommodation of the eye?

231 Views

38.

With reference to the functioning of the eye, answer the following questions:

(iv) Name the cells of the retina and their respective pigments which get activated (1)
in dark and (2) in light

200 Views

Advertisement
39.

With reference to the human ear, answer the following questions:

(i) Give the technical term for the structure found in the inner ear.

487 Views

40.

With reference to the human ear, answer the following questions:

(ii) Name the three small bones present in the middle ear. What is the biological term

for them collectively?

272 Views

Advertisement