ICSE-X-Biology
Previous Year Paper year:2012
- #2-b-iA membrane which allows the passage of molecules selectively.Ans : Selectively permeable membrane
- #2-b-iiThe suppressed allele of a gene.Ans : Recessive character
- #2-b-iiiStructure that carries visual stimuli from retina to the brain.Ans : Optic nerve
- #2-b-ivWBCs squeeze through the walls of the capillaries into the tissue.Ans : Diapedesis
- #2-b-ixStatistical study of human population.Ans : Demography
- #2-b-vProtective coverings located round the human brain and spinal cord.Ans : Meninges
- #2-b-viEye lens losing flexibility resulting in a kind of long sightedness in elderly people.Ans : Presbypopia
- #2-b-viiHormones which stimulate other endocrine glands to produce their specific hormones.Ans : Tropic Hormones
- #2-b-viiiThe phase in the menstrual cycle in which the remnant of follicle in the ovary turns to Corpus luteum.Ans : Luteal phase
- #2-b-xArtificially introducing weakened germs or germ substance into the body for developing resistance to a particular disease.Ans : Vaccination
- #3-a [5]Given below is the diagram of a cell as seen under the microscope after having been placed in a solution:

- #3-a-iWhat is the technical term used for the state icondition of the cell given above ?Ans : Plasmolysed
- #3-a-iiGive the technical term for the solution in which the ceil was placed.Ans : Hypertonic solution
- #3-a-iiiName, the parts numbered 1 to 4.Ans : (1) Nucleus (2) Chloroplast (3) Vacuole (4) Hypertonic solution