Carbohydrates are the large group of organic compounds occurring in food and living
tissues. They contain hydrogen and oxygen in 2:1 ratio. Carbohydrates can be classified
as simple or complex, depending on their chemical structure.
i. Write down the apparatus required to conduct the activity to test for the presence
of starch in the given food samples.
ii. What are carbohyrates?
ii. Name the food items that contain less amount of carbohydrates,
iv. Which solution is used to check the presence of starch in the given food sample?
v. What are roughages?
Answers
Answer:
i. 250 cm3 beaker,boiling tube,forceps,test tube holder.
ii. any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose. They contain hydrogen and oxygen in the same ratio as water (2:1) and typically can be broken down to release energy in the animal body.
iii.Low-carb foods include:
- lean meats, such as sirloin, chicken breast, or pork.
- fish.
- eggs.
- leafy green vegetables.
- cauliflower and broccoli.
- nuts and seeds, including nut butter.
- oils, such as coconut oil, olive oil, and rapeseed oil.
- some fruit, such as apples, blueberries, and strawberries.
iv. Starch is detected using iodine solution . This turns blue-black in the presence of starch.
v. Dietary fiber or roughage is the portion of plant-derived food that cannot be completely broken down by human digestive enzymes.