Sakshi Education Model Paper

Sakshi Education Model Paper

Sakshi Education Model Paper

Tenth Class Biological Science Model Paper

SUMMATIVE ASSESSMENT-I

Time: 2 Hours 45 Min. Max. Marks: 50

SECTION-I Answer all the questions Each question carries half mark

12 × ½ = 6M

1. Expand ATP____________
2. Find the mismatched one i) Bulbs-Onion ii) Tuber-Ginger iii) Stolons-Jasmine
3. Observe the flow chart and find A A Trachea Bronchioles Alreoli Blood
4. Read the sentence, find the error in the underlined word and rewrite it.. Alkaloids are the Primary metabolities
5. Which of the following groups is under eco-friendly protection? Cycling, walking, car pooling

Group-A Over use, deforestation, emissions

Group- B

6. ”I am a leguminous plant. Farmers put me on the rams to get rich? 7. In 1574 an Italian doctor studied the veins in the leg, he noticed that they had small valves in them, name the scientist.
7. Olfactory lobes: : : Cerebellum : Equilibrium
8. Your teacher gave you a red ribbon to wear it on. can you guess and write which occasion it is?
9. Identify the figure shown

Answer 11 and 12 questions to complete the passage (11-12) Cytokinins promote cell_____

(11). Promotion of sprouting of lateral buds, opening of_________

(12) SECTION-II 8 × 1 = 8M Answer all the questions Each question carries one mark

13. Fermented Idli, Dosa produces smell. Name the process and responsible microorganism for producing such smell.
14. Write the materials required to conduct an experiment regarding food movement in Oesophagus.
15. We can’t imagine the world without sparrows. So how should be our concern towards their conservation?
16. Why does the air become more moist in the nasal cavity?
17. Why are variations important?
18. Complete the following table

Hormones secreted Function

19. Leaves prepare substance ‘A’ through photosynthesis. It is converted into substance ‘B’ what are A and B?
20. What is the difference between Homo zygous and Heterozygous?

SECTION-III

Answer all the questions Each question carries two marks

8 × 2 = 16M

21. With which human organ organ systems the following organs are associated? i) Vanacova ii) Glomerulus iii) Alveoli iv) Microvilli
22. What happens if CO2 is not expelled during oxhalation?
23. Marasmus is a malnutricious disease. Justify.
24. Fill the boxes in the table Gas % in inhaled air % in exhaled air a 21 16 b 0.03 4.4
25. Why external fertilization occur in fishes and amphibians?
26. What is the advantage of difference in diameter of efferent arteriole and afferent arteriole?
27. What questions do you ask a doctor to know about different birth control methods?
28. You know the plant jatropha carcass, write the importance of this plant.

SECTION-IV

Answer all the following. Each question carries  Four marks

5× 4 = 20M

29. How can we show that heat is liberated during respiration? (or) Answer the following questions by observing the diagram showing the experiment.
30. i) What will you prove this experiment?
31. ii) What apparatus do you use in the experiment?

iii) Why do we use KOH solution in the experiment?

1. iv) Why do we study two leaves in the experiment?
2. Draw a neat labelled diagram of brain. (or) Draw the diagram of L.S. of root showing relationship of root hair to root water.
3. Fill the table Stimuli Movements Examples
4. Light
5. Earth
6. Water
7. Chemicals (or) Classify the following vitamins as water soluble and fat soluble vitamins. B1, B2, C, D, K, B6, B12, E write the diseases due to their
8. More snakes were introduced in one ecosystem. Write about the consequence of it. (or) If you meet a historian to clarify your doubt on man has first Born in Africa continent. What type of questions you will ask him.
9. Write the differences spermatozoan and ovum. (or) Even though plants do not possess any special excretory organs. They sent out waste materials regularly. How do you think it is possible?

32. More snakes were introduced in one ecosystem. Write about the consequence of it. (or) If you meet a historian to clarify your doubt on man has first Born in Africa continent. What type of questions you will ask him.

33. Write the differences spermatozoan and ovum. (or) Even though plants do not possess any special excretory organs. They sent out waste materials regularly. How do you think it is possible

Sakshi Education Model Paper

SECTION-1

1. ATP: Adenosine TriPhosphate
2. Tuber: Ginger 3. Nostrils
4. Secondary
5. Group A
6. Gliricidia
7. Girolamo Fabrici
8. Sense of smell
9. AIDS Awareness day
10. Neuron
11. Cell division
12. Stomata

Section-II
13. Fermentation, Yeast
14. Old cycle tube, oil, or grease, potato
15. Reduce the use of pesticides and prepare natural habitats
16. Because of secretion of mucus
17. Evolution of new species desired characters obtained.
18. Ghrelin – Initiates hunger pangs Leptin – Suppress hunger pangs 19. A- Starch B – ATP
20. Homozygous- having identical alleles for single trait Heterozygous- having dissimilar alleles for a single trait
Section-III
21. i) heart
ii) Kidney
iii) Lungs
iv) Small-Intestine
22. CO2 is the waste product of metabolic activities. If CO2 is not removed from the body it becomes toxic and normal function of tissues will be effected.
23. Marasmus is due to deficiency of both protein and calories lean and weak body, dry skin, diarrhea are the symptoms.
24. a) Oxygen b) CO2
25. Fishes and amphibians are aquatic animals. It produces a vast number of eggs and sperms and it releases in water. The fertilization occur in water.
26. The narrow outlet of efferent arteriole exerts pressure in the glomerulus. So as to enable the blood to remain more time in it, then help in proper filtration of blood.
27.
1. What are birth control methods?
2. What is the use of birth control method?
3. How copper T loop is useful in birth control
28. Latex is sticky milky white substance secreted by plants, latex is stored in latex cells. Latex from Jatropha in the source of bio-diesel

Section -IV
29. Aim: To prove that heat is liberated during respiration Apparatus: Thermos flasks, two thermometers, rubber corks, dry seeds, germination seeds. Procedure:
1) Take sprouts into thermos flask and dry seeds are taken into another thermos flask.
2) Mouths of the both the flasks are closed with one holed corkes.
3) Thermometers are fixed in each flask through the hole of the cork. 4) It is important to see that both the bulbs of thermometers should dip in the seeds in each flask.
5) Temperature is recorded for every 2 hours. Observation: constant increase in the temperature is observed in the thermometer placed in the germinated seeds. Result: Therefore it is proved that germinated seeds respire and liberate heat which is responsible for the increase in temperature.
29.
i) To show CO2 is essential for photosynthesis
ii) Potted plant, split corck, wide mouthed bottle, KOH, starch iodine.
iii) KOH absorbs the CO2 present in the bottle.
iv) To show CO2 is necessary for photosynthesis. The leaf kept in the bottle is not turn into blue black with iodine. 30.
(or)
31.
(or)
32. Introduce more snakes, there is a chance of following consequences.
a) There will be no frogs. Because snakes feed on the frogs.
b) The number of Grasshoppers increases as the number of frogs diminishes. They won’t get enough food from the grass. So a competition develops.
c) Due to the increased number, the snakes will not get enough food and competition develops among them.
d) But the hawks get more food and population increase
Solubility Vitamin diseases Deficiency Water soluble Thiamine
(B1) Beriberi vitamins Riboflavin
(B2) Glossitis Cyanocobalamin
(B12) Anaemia Ascorbic acid
(C) Scurvy Fat soluble Calciferol-D Rickets vitamins Tocopherol-E Fertility disorders Phylloquinone-K Blood clotting
Stimuli Movements Examples
1. Light Phototropism Sunflower
2. Earth Geotropism Root
3. Support Thigmotropism Cucumber
4. Water Hydrotropism Plants grow on
rocky areas
5. Chemicals Chemotropism Flowers, nectar
(or)
1) When did the human evolution takes place?
2) Africa is the birthplace of Early man. Is it correct?
3) How the early men spread all over the globe?
4) Why did ancient human beings traveled from one place to other?
5) Could you describe the lifestyle of the early humans?
6) What is meant by human race?
33.
(or)
1) Plants can get rid of excess water by a process called transpiration and solubilization.
2) Waste products can be stored in leaves, bark and fruits..
3) In some plants, waste is stored in fruits in the form of solid bodies called rufides. Eg: Kiwi fruit, Agave, spinach etc.
4) Many compounds are synthesized by plants for their own use, especially for defense.
5) Several plants produce chemicals and store them in their roots, leaves and seeds for protecting them against herbivores.
Ovum
1. These are formed in females
2. It is round in shape
3. These are produced single or two every month
4. Production of ova may start after birth. But ova will be matured until puberty
5. They are non-motile
6. Lifespan is 25 hours
Spermatozoan
1. These are formed in males
2. Each sperm has head, neck, middle piece and tail
3. These are produced in million numbers.
4. Production of sperm starts only after puberty in males.
5. They are motile
6. Lifespan is 24-72 h

Sakshi Education Model Paper

Sakshi Education