1. Which of the following statements about the autotrophs is incorrect?  (a) They synthesis carbohydrates from carbon dioxide and water in the presence of sunlight and chlorophyll  (b) They store carbohydrates in the form of starch  (c) They convert carbon dioxide and water into carbohydrates in the absence of sunlight  (d) They constitute the first trophic level in food chains 2. the body and absorbed?  (a) Mushroom, green plants, Amoeba  (b) Yeast, mushroom, bread mould  (c) Paramecium, Amoeba, Cuscuta  (d) Cuscuta, lice, tapeworm 3. Select the correct statement  (a) Heterotrophs do not synthesise their own food  (b) Heterotrophs utilise solar energy for photosynthesis  (c) Heterotrophs synthesis their own food  (d) Heterotrophs are capable of converting carbon dioxide and water into carbohydrates 4. Which is the correct sequence of parts in human alimentary canal?  (a) Mouth → stomach → small intestine → oesophagus → large intestine  (b) Mouth →oesophagus → stomach → large intestine → small intestine  (c) Mouth → stomach → oesophagus → small intestine → large intestine  (d) Mouth → oesophagus → stomach → small intestine → large intestine 5. If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?  (a) Proteins breaking down into amino acids  (b) Starch breaking down into sugars  (c) Fats breaking down into fatty acids and glycerol  (d) Absorption of vitamins 6. The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct one  (a) Pepsin  (b) Mucus  (c) Salivary amylase  (d) Bile 7. Which part of alimentary canal receives bile from the liver?  (a) Stomach  (b) Small intestine  (c) Large intestine  (d) Oesophagus 8. A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains  (a) complex proteins  (b) simple proteins  (c) fats  (d) starch 9. In which part of the alimentary canal food is finally digested?  (a) Stomach  (b) Mouth cavity  (c) Large intestine  (d) Small intestine 10. Choose the function of the pancreatic juice from the following  (a) trypsin digests proteins and lipase carbohydrates  (b) trypsin digests emulsified fats and lipase proteins  (c) trypsin and lipase digest fats  (d) trypsin digests proteins and lipase emulsified fats