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Life Processes Test - 61

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Life Processes Test - 61
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  • Question 1
    1 / -0
    Microvilli are present in
    Solution
    On the inner wall of the ileum (last part of small intestine), finger-like projections are present which are called as villi. Each villus further shows hair like projections called microvilli. They help in the absorption of nutrients and aids the peristaltic movement as part of the digestive process.
    Therefore, the correct answer is option B.
  • Question 2
    1 / -0
    Blood platelets are also called ________.
    Solution
    White blood cells are also called leucocytes. A lymphocyte is a type of leucocyte.
    Red blood cells are also called erythrocytes. 
    Blood platelets are also called thrombocytes. Their key function is in the clotting of blood.
    Hence, option C is correct. 
  • Question 3
    1 / -0
    Very long length of small intestine is co-related with which of the following food habit:
    Solution
    Because of the relative difficulty with which various kinds of plant foods are broken down, due to a lot of indigestible fibers, herbivores have significantly long small intestine than carnivores. Herbivores consume plants or plant products containing a high proportion of cellulose and must ferment their food to obtain the nutrient value. The herbivores typically have a simple stomach and a long small intestine for complete digestion and absorption of the complex molecules which needs more time.
    Thus, the correct answer is option A.
  • Question 4
    1 / -0
    Which one of the following is a part of a nephron?
    Solution
    The nephron is the filtering unit of the kidneys. The Bowman's capsule is a part of the nephron. It is a cup-like structure that performs the first step in the filtration of blood to form urine. 
    Other options are parts of the brain.
    So, the correct answer is option C.
  • Question 5
    1 / -0
    The given figure shows a part of digestive system. Identify it and select its main function.

    Solution
    The given figure is of villi of intestine. Villus are minute finger-like projections present on the lining of the small intestine. They have thin wall. They makes a large surface area which helps in effective absorption of nutrients. 
    Thus, the correct answer is option C.
  • Question 6
    1 / -0
    Haemodialysis is a treatment option for patients with malfunctions of
    Solution
    Haemodialysis is a method that is used to achieve the extracorporeal (procedure takes place outside the body) removal of waste products such as creatinine and urea from the blood when the kidneys are in a state of renal failure.
  • Question 7
    1 / -0
    The carbohydrate synthesised in the leaves are transported through sieve tubes most commonly in the form of
    Solution
    Sucrose is the main sugar transported most commonly by the phloem tubes. 
    Other sugars do occur in plants but in very fewer proportions. When required Sucrose is converted into other sugars.
    So the correct answer is 'Sucrose'.
  • Question 8
    1 / -0
    Part of the alimentary canal that runs from mouth to the stomach is called as
    Solution
    The connecting link from the mouth to the stomach is the esophagus. It is a muscular tube that moves the partially digested food from mouth to stomach for further digestion. In humans, the oesophagus is usually 18–25 centimeter long. During swallowing the epiglottis tilts backwards to prevent food from going down the larynx. The esophagus is the only part of the digestive system where no digestion occurs due to lack of enzymes.
  • Question 9
    1 / -0
    Bile secreted by liver is normally stored in the
    Solution
    Bile is a fluid that is made and released by the liver and stored in the gallbladder. Bile helps with digestion. It breaks down fats into fatty acids, which can be taken into the body by the digestive tract. Bile contains mostly cholesterol, bile acids (also called as bile salts), and bilirubin (a breakdown product of red blood cells). 
    Therefore, the correct answer is option A.
  • Question 10
    1 / -0
    In man, small intestine is the place for
    Solution
    The small intestine (small bowel) is the part of the gastrointestinal tract between the stomach and the large intestine and is where much of the digestion and absorption of food takes place. The small intestine has three distinct regions the duodenum, jejunum, and ileum. It receives bile and pancreatic juice through the pancreatic duct, controlled by the sphincter of Oddi. The primary function of the small intestine is the absorption of nutrients and minerals from food. 
    Therefore, the correct answer is option D.
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