Chapter 12: Mineral Nutrition
1.’All elements that are present in a plant need not be essential to its survival’. Comment.Soln. Most of the mineral elements present in the soil enter plants through roots but all of these may not be essential for…
Chapter 11: Transport in Plants
1.What are the factors affecting the rate of diffusion?Solution. Factors affecting the rate of diffusion are : 2.What are porins? What role do they play in diffusion?Solution: The porins are proteins that form huge pores in the outer membranes…
Chapter 10: Cell Cycle and Cell Division
NCRT TEXTBOOK QUESTIONS SOLVED 1. What is the average cell cycle span for a mammalian cell?Solution: 24 hours. 2. Distinguish cytokinesis from karyokinesis.Solution: Differences between cytokinesis and karyokinesis are: 3. Describe the events taking place during the interphase.Solution: The interphase,…
Chapter 9: Biomolecules
NCRT TEXTBOOK QUESTIONS SOLVED 1. What are macromolecules? Give examples.Solution: Macromolecules are large high molecular weight substances with complex molecular structure and occur in colloidal state (being insoluble) in intracellular fluid. These are formed by polymerization of large…
Chapter 8: Cell The Unit of Life
NCRT TEXTBOOK QUESTIONS SOLVED 1.Which of the following is not correct?(a) Robert Brown discovered the cell.(b) Schleiden and Schwann formulated the cell theory.(c) Virchow explained that cells are formed from pre-existing cells.(d) A unicellular organism carries out…
Chapter 7: Structural Organisation in Animals
1. Answer in one word or one line.(i) Give the common name of Periplaneta americana.(ii) How many spermathecae are found in earthworm?(iii) What is the position of ovaries in cockroach?(iv) How many segments are present in the…
Poem 2: The Laburnum Top
The Laburnum Top NCERT Text Book Questions and Answers The Laburnum Top Think it out Question 1.What do you notice about the beginning and the ending of the poem ?Answer:The poem begins with absolute silence on the laburnum…
Poem 4: Childhood
Childhood NCERT Text Book Questions and Answers Childhood Think it out Question 1.Identify the stanza that talks of each of the following : individuality ; rationalism; hypocrisyAnswer: Question 2.What according to the poem is involved in the…
Poem 5: Father to Son
Father to Son NCERT Text Book Questions and Answers Father to Son Think it out Question 1.Does the poem talk of an exclusively personal experience or is it fairly universal ?Answer:The complaint and anger of a father against…
Chapter 6: The Ghat of the Only World
The Ghat of the Only World NCERT Text Book Questions and Answers The Ghat of the Only World Reading with insight Question 1.What impressions of Shahid do you gather from the piece?Answer:Introduction. Shahid came to befriend with…
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