Biology
Given below are six sets with four terms each. In each set a term is an odd one and cannot be grouped in the same category to which the other three belong. Identify the odd one in each set and name the category to which the remaining three belong. The first has been done for you as an example.
| No. | Set | Odd one | Category |
|---|---|---|---|
| eg: | Cell wall, large vacuole, plastids, centrosome | centrosome | parts of plant cell. |
| (i) | Cerebrum, cerebellum, thalamus, hypothalamus | ||
| (ii) | Ovary, ureter, fallopian tube, uterus | ||
| (iii) | Adrenal gland, liver, thyroid gland, pituitary gland | ||
| (iv) | Malleus, Pinna, Incus, Stapes | ||
| (v) | Haemophilia, colour blindness, albinism, night blindness |
Answer
| No. | Set | Odd one | Category |
|---|---|---|---|
| (i) | Cerebrum, cerebellum, thalamus, hypothalamus | Cerebellum | Parts of fore brain |
| (ii) | Ovary, ureter, fallopian tube, uterus | Ureter | Parts of female reproductive system |
| (iii) | Adrenal gland, liver, thyroid gland, pituitary gland | Liver | Endocrine glands |
| (iv) | Malleus, Pinna, Incus, Stapes | Pinna | Ear ossicles |
| (v) | Haemophilia, colour blindness, albinism, night blindness | night blindness | Sex-Linked Inheritance. |
Related Questions
Study the following diagram carefully and then answer the questions that follow. The diagram is depicting a defect of the human eye:
(i) Identify the defect shown in the diagram.
(ii) Give two possible reasons for the above defect.
(iii) Draw a neat labelled diagram to show how the above defect can be rectified.
Match the items in Column A with that which is most appropriate in Column B. Rewrite the matching pairs:
Column A Column B (1) Potometer (a) Antiseptic (2) Hypothalamus (b) Disinfectants (3) Formalin (c) Vasectomy (4) Contraception in males (d) Sudden change in genes (5) Mutation (e) Pituitary gland (f) Tubectomy (g) Transpiration (h) Thyroid gland (i) Alleles (j) Photosynthesis Given below is an experimental set up to demonstrate a particular process. Study the same and answer the questions that follow:
(i) Name the physiological process being studied.
(ii) Explain the process mentioned above.
(iii) What is the aim of the above experiment ?
(iv) What would you observe in the experimental set-up after an hour? Give a reason to support your answer.
(v) Mention any three adaptations found in plants to overcome the physiological process mentioned in (i) above.
Give the biological/technical terms for the following:
(i) A membrane which allows the passage of molecules selectively.
(ii) The suppressed allele of a gene.
(iii) Structure that carries visual stimuli from retina to the brain.
(iv) WBCs squeeze through the walls of the capillaries into the tissue.
(v) Protective coverings located round the human brain and spinal cord.
(vi) Eye lens losing flexibility resulting in a kind of long sightedness in elderly people.
(vii) Hormones which stimulate other endocrine glands to produce their specific hormones.
(viii) The phase in the menstrual cycle in which the remnant of follicle in the ovary turns to Corpus luteum.
(ix) Statistical study of human population.
(x) Artificially introducing weakened germs or germ substance into the body for developing resistance to a particular disease.