Fill in the blanks:
6. The plants which depend wholly on the host plant for their food are
called .................. .
7. ............. break down fats into fatty acids and glycerol.
8. ................ skin infections occur because of the constant exposure to
boiling water during the process of killing the insects.
9. ................. is a form of energy that enables us to feel hot or cold.
10. Calamine solution usually contains............. .
True and false
11. The mode of nutrition in lichens is symbiotic.
12. Trypsin enzyme breaks down proteins into peptides.
13. Heat flows from the solid end to the cold end of a metallic rod.
14. Neutral substances have no effect on litmus paper.
15. Chest cavity remains surrounded by ribs.
One word answers
16. What type of plant is cuscuta?
17. Nutrition in animals is of what types?
18. Name the process that determines the quality of wool?
19. Name the process in which movement of molecules takes place.
20. Name the respiratory organs present in the leaves and woody stems.
Section- B
21. What is photosynthesis? Explain the process diagrammatically.
22. What changes occur in the following during digestion?
(a) starch (b) fats (c) proteins
23. Name the steps involved in converting woollen fibres into woollen
clothes.
24. Define the following terms :
(i) Radiation (ii) Convection currents
(iii) Conductors of heat
25. Give three points of difference between acid and base.
OR
What is an acid-base indicator? Give one example.
26. How do insects respire?
Section- C
27. How are nutrients put back in the soil?
28. Outline the process of nutrition in human body with the help of a flow
chart.
29. Give suggestions to make the silk industry a healthier place for workers.
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