M.M: 76 marks Dated: 28/07/2011
Time: 1 hour 15 minutes
Q 1: Fill in the blanks (1 mark each question x = 30 = 30 marks)
- The breakdown of complex components of food into simpler substances is called _____________.
- ______ ______ are the first set of teeth that grows during infancy and fall off at the age of between six to eight years.
- The process of taking food into the body is called ________.
- Starfish feeds on animals covered by hand shells of ___________ _______________
- The food passes through a continuous canal which begins at ________ _______ and ends at the _________.
- The digestive tract and the associated glands together constitute the _________ ___________.
- In human body, the ___________ breaks down the starch into sugars.
- ________ ________ is a special long thread that is moved between two teeth to take out trapped food particles.
- The _______ carries air from the nostrils to the lungs.
- ___________ is a thick walled bag, shaped like flattened U and is the widest part of the alimentary canal.
- The _________ protects the lining of the stomach.
- The _______ kills many bacteria that enter along with the food and makes the medium in the stomach acidic and helps digestive juices to act.
- The digestive juices break down the ____________ into simpler substances.
- The process of removal of faecal matter through the anus of human body is called __________.
- The ______ ____________ is highly coiled and is about 7.5m long.
- _________ secretes bile juice that is stored in a sac called the gall bladder.
- The ______ plays an important role in the digestion of fats.
- The _______ juice acts on carbohydrates, fats and proteins and changes them into simpler substances.
- The inner walls of the small intestine have thousands of finger-like outgrowths called ________.
- ____________ is the process in which the absorbed substances are transported via the blood vessels to different organs of the body.
- Grass eating animals quickly swallow the grass and store in a part of the stomach called _________.
- ORS stands for __________ __________ ____________.
- The salivary glands secrete a watery liquid called ______________.
- The food coming from the mouth is pushed down by alternate contraction and relaxations of muscles in Oesophagus, this process is called ___________.
- A long tube of 8 to 9 m length running from mouth to anus is called ____________ __________.
- The __________ runs adjacent to the food pipe in the body.
- The ________ teeth are for piercing and tearing the food.
- The white hard outer covering of tooth is called __________.
- The part of tooth below the enamel is called _________
- The total number of teeth in an adult is _______.
Q 2: Define nutrition. Write the names of five processes involved in nutrition in human body. (3 marks)
Q 3: From front to back, write the number of teeth and their names present in the lower jaw of human adult. (4 marks)
Q 4: What is the name of the second set of teeth that may last throughout or fall off during old age or due to some dental disease? (1 mark)
Q 5: Write the names of parts that together form the digestive tract. (3 marks)
Q 6: Write two functions of tongue in human body. (2 marks)
Q 7: What do you understand by tooth decay? Write four major culprits of tooth decay. (3 marks)
Q 8: Which is the largest gland in human body? What is its colour? (2 marks)
Q 9: Define absorption. Where does it happen? (2 marks)
Q 10: What is role of villi in intestine in human body? (1 mark)
Q 11: In small intestine, the intestinal juice breaks the following in to what: (3 marks)
- Carbohydrate
- Fats
- Proteins
Q 12: Between large intestine and small intestine, which is
i). wider? ii). lengthier? (2 marks)
i). wider? ii). lengthier? (2 marks)
Q 13: What is the function of large intestine in human body?
(1 mark)
(1 mark)
Q 14: What happens during breakdown of glucose? What are the end products? (2 marks)
Q 15: What is a symptom of diarrhoea? Write one cause of it. Can diarrhoea be neglected completely? Why or why not? (4 marks)
Q 16: With the help of a labelled diagram, explain how feeding of food, digestion and throwing out happens in Amoeba? (5 marks)
Q 17: Write True or False. In case of false statement, write the correct statement. (1 mark x 7 = 7 marks)
- The basic process of digestion of food and release of energy is completely different in all animals - __________
- Pseudopodia means real feet - __________
- Formation of faeces happens in small intestine ___________
- Killing of bacteria in human body happens in liver - ________
- Release of faeces is done by Rectum - _________
- Amoeba has a fixed shape - ___________
- Undigested and unabsorbed food is expelled out of the body as faeces by large intestine - __________
Q 18: How many taste buds are there in human tongue? Name them. (2 marks)
