DISTRICT COMMON EXAMINATION BOARD – KADAPA – YSR Dist.

Action Plan Model Question Paper 2019-2020

BIOLOGICAL SCIENCE (English Medium)

Class: 10 Max. Marks: 50 Time: 2.45Hrs

Instructions: 1. This Question paper contains only ONE Part. 2. 15 minutes are allotted for reading the question paper in addition to 2.30 hours for writing the answers 3. There are four sections and 33 questions in the paper

4. All Answers should be written in the separate answer booklet. 5. There is internal choice in Section – IV only. 6. Write all the questions visible & legibly.

SECTION – I Note: 1. Answer all questions. 2. Each question carries ½ Mark. 12X½=6 1. Find the Group of organisms that shows open type of Circulatory System? 2. I am an unicellular organism, I will use pseudopodia for collecting Food. Who am I?

3. 4. Name the Scientist with the help of this paragraph. He found that paper tube help to hear the heartbeat of a patient perfectly. Then he used a

Bamboo instead of paper tube to hear Heart beat and called Stethoscope in 1816.

5. Lungs and Skin are the respiratory organs of Frog. What are Respiratory organs of Fish?

6. Identify the mismatched one. Pulmonary Artery – Oxygenated Blood Pulmonary Vein – Oxygenated Blood Aorta – Oxygenated Blood

7. Expand NADP.

8. Find the missed substance in the given flow chart.

9. Read the sentence, find the error and Rewrite it.

“Respiration takes place in the Chloroplast, a cell organelle.”

12-12-2019

Day- 10

20E

Cockroach, Insects, Arthopods Birds, Snail, Starfish

Which type of circulation does this diagram indicate?

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10. 11. Answer 10 and 11 Questions with the help of the paragraph. Light reaction of Photosynthesis takesplace in ______ of chloroplast and Dark reaction takes

place in ______ of chloroplast.

12. The following placards prepared in your school for conducting a rally. Can you name the occasion to use these.

SECTION – II Note : 1. Answer all questions. 2. Each question carries 1 Mark. 8X1=8 13.

a) Name the chemical used to absorb Carbon dioxide present inside the bottle. b) Which chemical is used to test the carbohydrate present in the leaf?

14. Prothrombin X Thrombin

Fibrinogen Y Fibrin

What does X, Y indicate?

15. A patient named Balu is suffering from Scurvy. Doctor advised him to eat sour fruits for some days. By Which vitamin deficiency Balu is suffering. 16.

17. What are the structural and functional units of Lungs?

18. “Vigorous Exercise causes muscle pain” Explain the reason behind this.

19. Vitamin E and K are fat soluble. Write the names of 2 more fat soluble vitamins and write the names of diseases caused by their deficiency.

20. Blood pressure is always measured in the upper arm Artery name the apparatus used to measure Blood pressure of a person.

a) Identify the structure present on the stem of a plant

b) Write the use of this structure.

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SECTION – III

Note : 1. Answer all questions. 2. Each question carries 2 Marks. 8X2=16 21. Look at the following table and answer the following Questions.

Digestive Gland Digestive juice Enzyme Acts on

1. Salivary glands saliva ptyalin Carbohydrate

2. Liver Bile Juice - Fats

3. Pancreas Pancreatic Juice Amylase, Trypsin, Lypase Carbohydrates, Proteins, Fats

a) Identify the enzymes that act upon Carbohydrates.

b) What are the End products of proteins after digestion?

22. If you have a chance to meet pulmonologist, what questions are you going to ask about Lung Cancer? 23. Name the valves present between chambers of Heart

a) Right Atrium and Right Ventricle b) Left Atrium and Left Ventricle

24. Write 4 slogans to motivate people about Organ donation.

25. Study the given paragraph and answer the Questions. The Lymphatic system is a parallel system to venous system which collects tissue fluid from Tissues and transports it to the venous system. Blood contains solid and Liquid particles. Lymph is the substance that contains Blood without solid particles.

a) What is the composition of Lymph? b) Which system transport tissue fluid to venous system?

26. Food sometimes enters the wind pipe and causes choking. How does it Happen?

27. .

28. What food habits, you are going to follow after knowing about Nutrition? Why?

SECTION – IV

Note: 1. Answer all questions. 2. Answer any one from internal choice of each question. 2. Each question carries 4 Marks. 5X4=20 29. Write the differences between photosynthesis and Respiration.

(Or) Observe the following diagram and write a note on Light dependent and Light independent Reactions.

30. Prepare a flow chart showing from water absorption by Roots to transpiration by leaves. (Or)

What is malnutrition. Explain a few diseases with Nutritional deficiency?

a) Name the Scientist, who conducted this experiment.

b) What is the Relationship between candle, Rat and mint plant in Bell jar experiment?

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31. Write an Experiment that conducted in your school to prove the presence of starch in Leaves. (Or)

Observe the experimental setup and answer the following Questions.

32. Read the following table carefully and answer the following questions.

a) Name the animal with more weight and less number of Heart beats. b) Write the relationship between weight of the body and number of Heart beats? c) Write the weight of the Heart in Human beings? d) Do the number of Heartbeats/ min changes according to the age of a person?

(Or) Study the given paragraph and Answer the Questions.

Exchange of gases is a common life process in all living organisms, but it is not same in all. Single celled organisms like Amoeba or Multicellular organisms like Hydra and planarians obtain Oxygen and expel carbon dioxide directly from the body by the process of diffusion Animals either terrestrial or aquatic are adopted to different types of respiration and possess different types of respiratory organs mostly depending on the habit at in which they live. Body size, availability of water and the type of their circulatory system are some of the reasons for the animals to develop different types of Respiratory organs. Respiration through skin is called cutaneous respiration. Ex. Frog, Earth worm.

a) What is cutaneous Respiration?

b) Name the organisms that respire by diffusion of gasses through the plasma

membrane? c) Why do animals develop different types of Respiratory Organs? d) What are the Respiratory organs of Humans?

33. Draw a neat labelled diagram of Transverse section of a Leaf?

(Or) Observe the following diagram and answer the following Questions.

a) What is the aim of this experiment?

b) Name the apparatus required to conduct the experiment?

c) Which instrument is used to measure the temperature of seeds?

d) What will happen if dry seeds are used instead of Germinating seeds in this experiment?

Prepared by Smt. B. SIVA LAKSHMI, SA-BS, ZPHS(B)- Galiveedu,

a) Name the cell organelle?

b) Identify the parts X, Y, Z, W?

c) How many calories of energy is produced from one ATP molecule?