PRACTICE QUESTIONS|ASSIGNMENTS |CLASS 10 |ICSE

QUESTION 1 Why is polythene tied at base of stem What do the above process represent. Define it What leads to transpiration What is a control setup. Suggest the same for this experiment What will happen if dry cobalt chloride paper is kept in polythene QUESTION 2 Why oil kept in beaker Which of the beaker would lose most water .justify What are 3 different types of transpiration How will rate of transpiration affected by change in :Atmospheric pressure , temperature , velocity of wind How can you prevent loss of water in form of transpiration(adaptations).Name one such plant     QUESTION 3 Label 1-3 Give functions of 1 and bubble Which plant can be used Mention some limitations How is transpiration useful in plants In traditional method of transpiration how do we calculate rate of transpiration In garreau's potometer why we use Calcium chloride vials (general question not in course)   QUESTION 4 Name secretion of 1 Label 1-8 Ho...

QUESTION 1 Label parts 1-6 Draw a diagram of magnified root hair Write function of 3 Name and define pressure generated by 1 How does water enter from soil into  roots of plant QUESTION 2 Label A , B , C How will plants look after experiment is completed Draw diagram of transverse (of leaf or stem) after experiment over in 1 What is function of A and B  Why have we used dye in this experiment  QUESTION 3 Name the forces A , B , C  Define them What is relation between B and C  Draw diagram of same cell magnified when kept in sugar solution What will you do to bring the cell back to it's original position QUESTION 4 W hat change seen in beaker after some time What can you use in place of cellophane sheet What quality of cellophane sheet made it useful in this experiment If you don't want to change the level of sugar solution in beaker then what will you use in place...

DIFFERENTIATE BETWEEN Turgidity and flaccidity Diffusion and osmosis Active transport and passive transport Imbibition and deplasmolysis Exosmosis and endosmosis Root pressure and osmotic pressure Hypertonic solution and hypotonic solution Guttation and bleedinG Turgor pressure and wall pressure Cellophane and muslin cloth Photosynthesis and transpiration Solute and solvent WRITE BRIEFLY ----------:CHLOROPHYLL::HAEMOGLOBIN:RBC Why roots absorb water easily How will root hair look when excessive fertilizer is added into soil Why doors don't open easily during rainy season What is condition for osmosis What is meant by control setup What is girdling.How is it useful in real life How is active transport useful in plants Why does leaves of certain plant wilt during hot afternoon How does addition of salt help to kill bacteria in pickles How is manometer useful Name a plant which is sensitive to stimulus of touch .The part which leads to the same Give lo...

Name the following (learn definitions for same) S tudy of transmission of body features from parents to offspring Father of genetics Alteration of genetic constitution of an organism by introducing new genes in it's chromosomes The first result of GMO Full form of GMO Two diseases that are genetically inherited Small differences among individuals The pictorial representation of complete set of chromosomes arranged according to size and shape The first 22 pair of chromosomes Chromosomes that determine sex of a child Ploidy of human male's sperms Parts which determine the heredity characteristics  Full complement of an organism Physical bases of life Chemical bases of life The breed of plant used by mendel  Sudden change in one or more genes or in structure of chromosomes DIFFERENTIATE BETWEEN THE FOLLOWING Genotype and phenotype Heterozygous and homozygous (tall) Dominant and recessive character allele and genome Character and trait Autosomes an...

QUESTION 1 Label parts 1-5 Name the parts that form rungs of DNA How many nucleotides are seen in each strand What are chemical ,physical bases of life on earth Adenine pairs with------and Guanine with ------ but are together called------ Draw a helical structure of DNA QUESTION 2 Label parts 1-5. What is ploidy of this cell Identify whether it is plant or animal cell?Justify Identify the stage shown.Give reason(s) for it Draw a stage after and prior to it and give it's features Draw a diag of corresponding phase in the alternate cell what is difference between mitosis and meiosis as far as spindle fibres origin Give location of centrosome QUESTION 3 Label parts 1-5 Name and define the phenomenon shown below. How will cell look after this phenomenon How many synopsis can be seen Define part 4 and 5 SOME GENERAL QUESTIONS YOU MUST KNOW What are semi autonomous organisms ....

NAME THE FOLLOWING: Highly condensed chromatin fibre that appear during cell division The point of attachment for chromatids in chromosome Full form of DNA Chromatin consists of The structure of DNA was worked out by Repeating components of DNA molecule The four bases in a nucleotide of DNA Adenine and guanine are together called Cytosine and thymine are together called Rungs of DNA are composed of Total number of chromosomes in a cell  Cell division in which two daughter cells are produced Cell division which helps to bring genetic variation Cell division in which four daughter cells re produced The resting phase of a cell in mitosis The phase concerned with division of nucleus(during mitosis) The complete set or two set of chromosomes The half set or single set of chromosomes In which phase of interphase RNA and protein synthesized In which phase of interphase DNA duplicates Uncontrolled cell cycle leads to  The reproductive parts of flowering plants...