Please select a subject first
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Give appropriate biological or technical terms for the following:
The process of maintaining water and salt balance in the blood.
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Synthesis phase in the cell cycle is called so for the synthesis of more of ______.
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Name two animals which have nineteen pairs of chromosomes.
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Name any two genetic in humans.
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Does the sex of the child depend on the father or it is just a matter of chance? Discuss.
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A family consists of two parents and their five children and the pedigree chart below shows the inheritance of the trait colour blindness in them.
Who is colour blind in the parents – the Father or the Mother?
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The insulating sheath covering the neural axon is called.
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A mixed nerve is one which
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Name the following:
The junction between two nerve cells.
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what do we refer to in the nervous system when we say:
sensory, motor and mixed ………………..
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MULTIPLE CHOICE TYPE:
The secretion of ADH (anti-diuretic hormone) is inhibited by
(a) emotion and stress (b) nicotine (c) alcohol (d) morphine
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Name the following:
The hormone causing more urine formation
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Why do you call the spinal cord and the brain as the central nervous system?
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During a street fight between two individuals, mention the effects on the following organs by the autonomous nervous system, in the table given below : (one has been for you as an example).
| Organ | Sympathetic System | Parasympathetic System |
| e.g. Lungs | Dilates bronchi and bronchioles | Constricts bronchi and bronchioles |
| 1. Heart | ||
| 2. Pupil | ||
| 3. Salivary gland |
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Given below are a few situations. What effective change will occur in the organ/body part mentioned and which part (sympathetic or parasympathetic) of the autonomic nervous system brings it about?
| Situation | Organ/body part | Change/action | Part of autonomic nervous system involved |
| 1. You have entered a dark room | Eye | ||
| 2. Your body is consuming lot of glucose while running a race | Liver | ||
| 3. You are chewing a tasty food | Salivary gland | ||
| 4. You are running a race | Adrenal gland | ||
| 5. You are retiring to bed for sleep | Heart | ||
| 6. You are shivering in intense cold | Body hairs |
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Given below is the partially incomplete scheme of the components of peripheral nervous system. Fill up the blanks numbered (1)-(12):
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Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer.
Pituitary is popularly called the master gland
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Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer.
Gigantism and dwarfirm in humans basically depend on the qualtity and quantity of the food eaten during early growing age.
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Given below are two diagram (one is correct the other is some hwat incorrect) showing the transport of a hormone from its source gland/ cell to the target organ/ cell.
Which one has the error A or B ?
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Which one of the following is the correct route that a sperm follows when it leaves the testis of a mammal ?
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