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MCQ TEST ON LIFE PROCESS
Quiz by Agalyadevi N
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1. Choose the forms in which most plants absorbnitrogen:
Which of the following statements about the autotrophs is incorrect?
3.3. Select the correct statement
4. Which is the correct sequence of parts in human alimentary canal?
5. If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?
6. The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct one
7.A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains
8.Vocal cords occur in:
9.How many pairs of salivary glands are found in humans?
10.Which cell organelle is involved in breakdown of glucose to produce energy for metabolicactivities?
11.In which part of the alimentary canal food is finally digested?
12.Choose the function of the pancreatic juice from the following
13.When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of
14.The correct sequence of anaerobic reactions in yeast is
16. Only two of the following Statementsaccurately describe what happens in the mouth.
1. Amylase breaksdown large starchmolecules into smallermaltose molecules.
2. Chewing increasesthe surface area of food for digestion.
3. Saliva emulsifies fats into smaller droplets.
4. Teeth breakuplarge insoluble moleculesinto smaller solublemolecules.
which statements are correct?
15.The diagram represents a section throughthe small intestine,What is the role of the structure labelled X ?
17.The diagramshows the arrangement of cells inside theleaf of a green plant. (No cell contents are shown). Which cells normallycontain chloroplasts?
18.Instrument used to measure blood pressureis
19.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
20.Which is the correct sequence of air passage during inhalation?
21.During respiration exchange of gases take place in
22.The diagram shows the human gut. Which numberedstructures secrete digestiveenzymes?
23. Which chambersof human heart contain oxygenated blood?
24. In the figure givenalong side, the structures associated withhuman kidneys are marked (X,Y and Z ). The relative concentrations of urea in these structuresis
25.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.
26.What prevents backflow of blood inside the heart during contraction?
27.Single circulation i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by
28.The diagram shows parts of a floweringplant. Where does the most transpiration take place?
29.In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?
30.Oxygen liberated during photosynthesis comes from