What do Different Food Items Contain? Video Lecture | Science Class 6

0:0:2: components of food
0:0:8: Prince are components that we get from
0:0:12: plants or animals and these components
0:0:15: contains some ingredients that are
0:0:18: needed by our body
0:0:21: our meals usually have at least one item
0:0:25: made of some kind of grains
0:0:28: are the items could be a Dal or a dish
0:0:31: of meat and vegetables it may also
0:0:35: include items like curd butter
0:0:39: milk and pickles
0:0:42: the major nutrients in our food are
0:0:45: named carbohydrates
0:0:47: proteins fats vitamins and minerals
0:0:53: in addition food contains dietary fibers
0:0:57: and water which are also needed by our
0:1:1: body
0:1:5: test for starch
0:1:8: the main carbohydrates found in our food
0:1:12: are in the form of starch and sugars we
0:1:16: can easily test if a food item contains
0:1:20: starch
0:1:23: take a small quantity of food item or a
0:1:27: raw ingredient
0:1:29: put 2-3 drops of dilute iodine solution
0:1:33: observe if there is any change in the
0:1:35: color of the food item did it turn blue
0:1:38: black yes a blue black color indicates
0:1:42: that it contains starch
0:1:45: test for proteins take a small quantity
0:1:49: of food item for testing grind or Mash a
0:1:54: small quantity of the food item put some
0:1:57: of this in a clean test tube add 10
0:1:59: drops of water to it and shake the test
0:2:3: tube Now using a dropper add two drops
0:2:7: of solution of copper sulfate and 10
0:2:10: drops of caustic soda to the test tube
0:2:14: shake well and let the test tube stand
0:2:17: for a few minutes
0:2:19: what do You observe
0:2:21: yes
0:2:22: the content of the test tube turn Violet
0:2:25: a violet color indicates presence of
0:2:29: protein in the food item
0:2:33: test for fats
0:2:35: take a small quantity of a food item
0:2:39: wrap it in a piece of paper and crush it
0:2:43: now observe the paper
0:2:46: does it have an oily patch yes hold the
0:2:50: paper against the light
0:2:53: and oily patch on paper shows that the
0:2:56: food item contains fat
0:3:0: foods containing fats and carbohydrates
0:3:4: are also called Energy giving Foods
0:3:7: proteins are needed for the growth and
0:3:10: repair of our body thus these proteins
0:3:13: are called bodybuilding food
0:3:18: vitamins helps in protecting our body
0:3:22: against diseases
0:3:24: it also helps in keeping our eyes bones
0:3:28: teeth and gums
0:3:30: healthy there is also a group of
0:3:33: vitamins called vitamin B complex
0:3:36: besides these nutrients our body needs
0:3:39: dietary fibers and water dietary fibers
0:3:43: are also known as roughage which are
0:3:46: mainly provided by plant products enough
0:3:49: food whole grains pulses potatoes
0:3:54: fresh fruits and vegetables are main
0:3:57: sources of roughage we get most of the
0:4:0: water from the liquids we drink such as
0:4:3: water milk and tea water helps our body
0:4:8: to observe nutrients from food it helps
0:4:12: in throwing out some waste from body as
0:4:16: urine and sweat deficiency diseases
0:4:19: person may be getting enough food to eat
0:4:22: but sometimes the food may not contain a
0:4:26: particular nutrient
0:4:28: if this continues over a long period of
0:4:31: time the person may suffer from diseases
0:4:35: called deficiency diseases
0:4:38: some diseases disorders caused by
0:4:41: deficiency of vitamins and minerals are
0:4:44: as such
0:4:47: vitamin A loss of vision
0:4:51: symptoms
0:4:52: poor vision loss of vision in darkness
0:4:57: sometimes complete loss of vision
0:4:59: vitamin B1
0:5:2: berry berry weak muscles and very little
0:5:6: energy to work vitamin C scurvy bleeding
0:5:11: gums wounds take longer time to heal
0:5:16: vitamin D rickets bones become soft and
0:5:21: bent
0:5:22: calcium bone and tooth decay
0:5:27: weak bones tooth decay
0:5:30: iodine
0:5:31: goiter Clans in the neck appears swollen
0:5:35: mental disability in children iron
0:5:39: anemia weakness
0:5:43: foreign
0:5:49: foreign