Tag: evs

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Multiple choice evs food components simple test for nutrients test for nutrients energy from different food components

Some fruits and raw vegetables should be included in the diet because 

  1. Vitamin A is present in this fruits and vegetables.

  2. Minerals are present only in raw vegetables.

  3. Vitamin C present in this food gets destroyed on cooking.

  4. Starch is not present in this food.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Vitamin C is a water-soluble vitamin. So it gets passed out of the body through urine and sweat. Even if it is taken as in cooked food, it gets destroyed on cooking. So it is required to include raw fruits and vegetables in the diet.
So the correct answer is 'Vitamin C present in this food gets destroyed on cooking'.
Multiple choice evs food components simple test for nutrients test for nutrients energy from different food components

Which ones function as regulators?

  1. Carbohydrates

  2. Lipids

  3. Proteins

  4. Vitamins and minerals
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vitamins and minerals function as regulators in growth and development process in living being. They also act as catalyst for various processes. Vitamin D acts as regulator in mineral metabolism. Some forms of vitamin A acts as regulator in growth and differentiation process. Minerals are part of enzymes that are part of many physiological processes.

Thus, the correct answer is option D.

Multiple choice evs food components simple test for nutrients test for nutrients energy from different food components

The food sources which are rich in vitamins are 

  1. Eggs

  2. Lemon

  3. Fish oil

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Eggs also called as referred as nature's multivitamin due to the presence of vitamins. One large egg contain vitamin B like: B12, B2, B5 and vitamin A.  
Lemon is a good source of vitamin C which is also called ascorbic acid. Whereas fish oil contain vitamin A and D. 
So the correct answer is 'All of the above'.
Multiple choice evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

As a balloon is filled with water,it expands and increases in weight,This shows that water:

  1. Has mass

  2. Occupies space

  3. Is a kind of matter

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The balloon expands shows that the water n the balloon is occupying the space and the increase in weight of the balloon proves that water has mass and Matter is anything that has mass and takes up space.

Multiple choice evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

 Matter is composed of:

  1. atoms

  2. molecules

  3. tiny particles

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Matter is anything which have mass and occupy space. Substance and Mixture is the main part of the matter. Substance is the further classified in elements and compound, which is further categorized as atom and molecule. 

Hence, matter is composed of everything atoms, molecules, tiny particles etc.

Multiple choice evs the muscular system and digestive system in human beings human muscular system closer look into muscular system muscles and its types

Sarcomere is distance between

  1. Two I-bands

  2. A and I bands

  3. Two Z-lines

  4. Z and A bands
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Each myofibril(a unit of the muscle cell) has alternate dark and light bands on it.
  • The light bands contain actin and are called I-band or Isotropic band, whereas the dark band called ‘A’ or Anisotropic band contains myosin.
  •  In the center of each ‘I’ band is an elastic fibre called ‘Z’ line which bisects it. The thin filaments are firmly attached to the ‘Z’ line.
  • The ‘A’ and ‘I’ bands are arranged alternately throughout the length of the myofibrils. 
  • The sarcomere is considered as the functional unit of contraction. The portion of the myofibril between two successive ‘Z’ lines is considered as a sarcomere. Hence sarcomere is the distance between two Z lines.
  • So, the correct answer is 'Two Z-lines'.