(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

The diagram given below represents a stage in mitosis.

1. Identify the stage given above.
2. Give one reason to support your answer in (a).
3. Mention the number of chromosomes given in the diagram.

During Mitosis what is the position of chromatids in metaphase?

During Mitosis what is the position of chromatids in the anaphase?

The phase of karyokinesis which is almost the reverse of prophase is ______.

Name these:

Two steps of the process Mitosis

The hydrostatic pressure of the cell sap on the cell wall is called ______.

When the cells of a plant are fully distended, the condition is called ______.

Addition of salt to pickles is a method of killing the bacteria by ______.

Give the equivalent term for the following:

Pressure exerted by the cell contents on the cell wall.

The process of oozing out of the fluids from a plant part is ______.

Hydathodes are located on ______.

Define the following term:

Exudation

Define the following term:

Hydathodes

Give a reason/suitable explanation.

Guttation normally occurs during early mornings or late nights.

The figure given below is a diagrammatic representation of a part of the cross-section of the root in the root hair zone. Study the same and then answer the questions that follow:

1. The parts labelled as 1, 2, 3 and 4 are:
   1. Root hair, Xylem vessel, Soil particles, Cortex respectively.
   2. Xylem vessel, Soil particles, Root hair, Cortex respectively.
   3. Root hair, Xylem vessel, Cortex, Soil particles respectively.
   4. Cortex, Soil particles, Xylem vessel, Root hair respectively.
2. The process that enables the passage of water from soil into the root hair is:
   1. Diffusion
   2. Active transport
   3. Osmosis
   4. Passive absorption
3. The kind of force which exists between a liquid and any surface is called as:
   1. Cohesive force
   2. Adhesive force
   3. Capillarity
   4. Suction force
4. The kind of force between the same kind of liquid molecules is:
   1. Capillary force
   2. Transpirational pull
   3. Adhesive force
   4. Cohesive force
5. Sometimes exudation of water occurs from the margin of the leaves in the early morning or night. It is termed as:
   1. Transpiration
   2. Guttation
   3. Bleeding
   4. Osmosis

Given below is the figure of a plant cell showing different kinds of pressure acting upon it. Study the figure and answer the questions that follow:

1. In the figure, 1, 2 and 3 represent:
   1. Cytoplasm, Nucleus, Vacuole respectively
   2. Vacuole, Cytoplasm, Cell wall respectively.
   3. Cytoplasm, Cell membrane and vacuole respectively.
   4. Cytoplasm, Cell wall and Vacuole respectively.
2. B in the figure represents:
   1. Osmotic pressure
   2. Turgor pressure
   3. Wall pressure
   4. Diffusion pressure
3. A in the figure represents:
   1. irnbibition pressure
   2. Wall pressure
   3. Turgor pressure
   4. Osmotic pressure
4. C in the figure represents:
   1. Turgor pressure
   2. Osmotic pressure
   3. Wall pressure
   4. Imbibition pressure
5. Draw a neat and labelled diagram of a plasmolyzed plant cell.

Differentiate between members of the following pair with reference to what is asked in the bracket.

Myopia and Hyperopia (type of lens used for correction).

Aqueous humour, Vitreous humour, lris, Central canal

Give biological reasons for the following statements:

The left ventricle of the heart has a thicker wall than the right ventricle. 

The diagram given below represents a section of the human heart. Answer the questions that follow :

(i) Which parts of heart are in the diastolic phase? Give a reason to support your answer.
(ii) Label the parts numbered 1 and 2 in the diagram. What type of blood flows through them?
(iii) What causes the heart sounds ‘LUBB’ and ‘DUP’?
(iv) Name the blood vessels that supply oxygenated blood to the heart muscles.
(v) Draw neat labelled diagrams of a cross section of an artery and a vein.