Summative AssessmentGeneral Science Paper IIBiological ScienceEnglish MediumClass X Marks: 40 Time: 2 hrs 45 min General Instructions:1. This question paper has FOUR sections2. Answer all the questions.3. Time allotted for reading of question papers is 15 minutes.Section I 4X 4= 16 MarksNote: i) Answer all the questions.ii) Each question carries Four Marks.iii) Each question has internal choice.iv) Answer each question in 8 to 10 sentences.1. a) Can you say that combustion, respiration are almost same action? What evidences do you have for this?(OR)b) Do the malnutrition reason for diseases? Why ?2. a) We have conducted an experiment that prove the release of oxygen when photosynthesis happens?A. What are the plants that used for this experiment? Where do they grow?B. How did you conduct the above experiment in which context large number of air bubbles released, you noticed? (OR) b). Write the following items about the experiments you have done to show that plants move to light A, Used equipments B Method of experimentC. Observed results3 a) Write main differences of the following:A) Mitosis division meiosis divisionB) Asexual Reproduction sexual ReproductionC) F1 Generation- F2 GenerationD) Soaking Pit- Percolation Tank (OR) b) Write main differences between A) Basophiles Nutrophiles B) Peristalsis Reverse Peristalsis C) Grafting Layering D) Mastication - Rumination4. Analyze the table given below:Animal nameWeight of the bodyHeart weightHeart beat per minute

Blue whale150000 kgs750 kgs7

Elephant3000 kgs12-21 kgs46

Human60-70 kgs300 gms70-80

Coal tit bird8 grams0-15 gms1200

A) In the above table which animal is with more body weight?B) Reason for heart beat less than body weight.C) What is the relation between weight of the body and weight of the heart?D) What is the relation between weight of the heart and its number of heart beats?(OR) With the help of given information write your comment on evidences of evolution.Mammals have four limbs as do birds, reptiles and amphibians. The bask structure of the limbs is similar, though it has been modified to perform different functions.

SECTION II 6X 2= 12 MarksNote: i) Answer all the questions.ii) Each question carries Two Marks.iii) Each answer to be written in 4 or 5 sentences5. Write differences between Hormones and enzymes.6. What questions you will ask in an interview of a person using vehicle on the consumption of petrol?

7. The symbol is there on the item you bought. What does it instruct?8. After knowing human digestive and excretory systems, how can you change your food habits?9. Draw a monohybrid cross of Mendel experiment with a checker board.10. Draw Pyramid of Number for the following food chains.i) Banyan insects wood peckerii) Grass rabbit wolf

PART III 7X 1= 7 MarksNote: i) Answer all the questions.ii) Each question carries One Marks.iii) Answer each question in one or two sentences.

11. What happens absence of mitotic cell division in organism?12. Suggest a simple experiment to prove the role of palate in recognizing taste.13. Ramana did not take food even though he felt hungry, after sometime he gets relief from hunger. Write reasons for it.14. Write phenotypic and Genotypic ratio of table given below?

Y

YYYY

Y

15. What is the usual range of pH of your mouth?16. Write two slogans on conservation of water.17. What type of information do you require to explain Pyramid of biomass?

PART IV 10X = 5 MarksNote: i) Answer all the questions. ii) Each question carries Mark. iii)Each question has four alternatives. Select the right alternative given and write it in the answer sheet along with the question number.

18. Which of the following is the correct order of human excretory system?A) Kidneys Urinary bladder Urethra UratersB) Kidneys Uraters - Urinary bladder Urethra C) Kidneys Urethra Uraters - Urinary bladder D) Kidneys Urethra Urinary bladder Uraters

19. Find out the wrong pairA) Saliva - Ptyalin C) Gastric Juice - LipaseB) Pancreatic Juice - Amylase D) Intestinal Juice - Peptidase20. What part of your wrist is pressed by a doctor to examine the pulse rate?A) Vein B) Artery C) Capillary D) Lymph21. Emulsification in digestive system is due to the presence of A) Saliva C) PepticB) Gastric Juice D) Bile Juice 22. Sustainable development meansA) Prevention of wastage C) Developing without damageB) Stable growth D) High yielding in less time

23. What methods are to be followed by farmers in scarcity of water?A) Short yielding crops C) Drip irrigationB) Growing commercial crops D) give gap between crops

24. Ranjith told to cut grass and green plants to keep surroundings clean. This is opposed by Sandeep. Why?A) Need more labour C) Disturbs equilibriumB) Takes more time D) Artificial environment

25. If we observe potted explants growing horizontally on ground for some days what will be the correct diagram given below.

A) B) C) D)

26. Why do we use KOH in abottle in the experiment to know Co2 is necessary for Photosynthesis?A) To absorb chlorophyll in a leave B) To absorb air in the bottleC) To absorb co2 in the bottleD) To absorb water in the bottle.

27. It took long time clotting of blood when Ramus finger got cut. Imagine what will be the reason.A) Deficiency of vitamin DB) Deficiency of vitamin kC) Ramus body has excess bloodD) Ramus body has less blood

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