Test-MCQ Class 10-NCERT -Science-Chapter 6-Test-2

1. Which is the correct sequence of parts in human alimentary canal?

2. If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?

3. The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct one

4. Which part of alimentary canal receives bile from the liver?

5. A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

6. In which part of the alimentary canal food is finally digested?

7. Choose the function of the pancreatic juice from the following

8. When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of

9. The correct sequence of anaerobic reactions in yeast is

10. Which of the following is most appropriate for aerobic respiration?

11. Which of the following statement(s) is (are) true about respiration?

(i) During inhalation, ribs move inward and diaphragm is raised
(ii) In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from blood into alveolar air
(iii) Haemoglobin has greater affinity for carbon dioxide than oxygen
(iv) Alveoli increase surface area for exchange of gases

12. Which is the correct sequence of air passage during inhalation?

13. During respiration exchange of gases take place in

14. Which of the following statement (s) is (are) true about heart?

(i) Left atrium receives oxygenated blood from different parts of body while right atrium receives deoxygenated blood from lungs
(ii) Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs
(iii) Left atrium transfers oxygenated blood to right ventricle which sends it to different body parts
(iv) Right atrium receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of the body

15. What prevents backflow of blood inside the heart during contraction?

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