Please select a subject first
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Choose the odd one out from each series
The glands – thyroid, adrenal, pituitary, prostate
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What are the advantages of having a nervous system?
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Match the items of column I with those of column II
| Column I | Column II | ||
| 1 | β (beta) cells of islets of Langerhans |
a | condition due to undersecretion of thyroxine in adults |
| 2 | Thyroid | b | Glucocorticoids |
| 3 | Cretinism | c | Exophthalmic goitre |
| 4 | Addison's disease | d | Increases heart beat |
| 5 | Hypothyroidism | e | Thyroxine |
| 6 | Myxoedema | f | Adrenal cortex |
| 7 | Adrenaline Under secretion of thyroxine in a child |
h | Under secretion of thyroxine in a child |
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Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer.
There are two kinds of diabetes (mild and severe) related with two different hormones.
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Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer.
Harmones ‘obey’ the commands like ‘enough, slow down or ‘two little, speed up’
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How do endocrine glands differ from other glands?
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Mention any two differences between a hormone and an enzyme.
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Do you agree with the statement – “ All hormones are chemical signals”? Yes / No. Justify your answer.
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Compare the hormonal response with the nervous response with respect to their speed, transmission and the general nature of changes brought about.
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Mention three important differences between the action of hormones and that of nerves in the regulatory mechanism of our body.
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Given alongside is an outline diagram of human body showing position of certain organs.
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- Name the parts numbered 1 to 4.
- What is common to all these parts in regard to the nature of their functions?
- Name the nutrient element which is essential for the normal working of part 2.
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Give suitable biological reasons for the following statement :
All life on Earth is supported by Photosynthesis.
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Identify the ODD term in each set and name the CATEGORY to which the remaining three belong :
Example : glucose, starch, cellulose, calcium
Odd term : calcium
Category : others are different types of carbohydrates
Addison’s disease, Cushing’s Syndrome, Acromegaly, Leukemia
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Identify the ODD term in each set and name the CATEGORY to which the remaining three belong :
Example : glucose, starch, cellulose, calcium
Odd term : calcium Category : others are different types of carbohydrates
Insulin, Adrenaline, Pepsin, Thyroxine
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Identify the ODD term in each set and name the CATEGORY to which the remaining three belong :
Axon, Dendron, Photon, Cyton
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Expand the following biological abbreviations :
ATP
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Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 
Label the parts 1 and 2.
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Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
(ii) Name the tropic movement shown by part 1.
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Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger? 
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
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Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 
What is Thigmotropism? Give one example.
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