Tag: evs

Questions Related to evs

Mineral salts contribute in regulating body processes.

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

  1. True

  2. False

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Correct Option: A
Explanation:

The body uses minerals to perform many different functions from building strong bones to transmitting nerve impulses. Some minerals are even used to make hormones or maintain a normal heartbeat. 

So, the correct answer is 'True'.

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

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

  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.

Show answer
Correct Option: C
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'.

Which ones function as regulators?

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

  1. Carbohydrates

  2. Lipids

  3. Proteins

  4. Vitamins and minerals

Show answer
Correct Option: D
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.

The food sources which are rich in vitamins are 

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

  1. Eggs

  2. Lemon

  3. Fish oil

  4. All of the above

Show answer
Correct Option: D
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'.

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

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

  1. Has mass

  2. Occupies space

  3. Is a kind of matter

  4. All of these

Show answer
Correct Option: D
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.

Matter can be defined as something that:

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

  1. Occupies space

  2. Has mass

  3. Exists in three states

  4. All of the above

Show answer
Correct Option: D
Explanation:

Matter is defined as something  that which occupies space and possesses rest mass, especially as distinct from energy and exists in all the three states

The quantity of matter present in an object is called its ___________.

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

  1. weight

  2. volume

  3. mass

  4. density

Show answer
Correct Option: C
Explanation:

Mass is the property of a physical body which determines the strength of its mutual gravitational attraction with other bodies. The unit of mass is kilogram.

 Matter is composed of:

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

  1. atoms

  2. molecules

  3. tiny particles

  4. all of the above

Show answer
Correct Option: D
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.

Matter is defined as anything that ____________.

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

  1. occupies space and has mass

  2. has mass only

  3. occupies space only

  4. none of the above

Show answer
Correct Option: A
Explanation:

Matter is a substance that has a mass and occupy space. Example: sofa, TV, water, air, etc.


Option A is correct.

Sarcomere is distance between

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

  1. Two I-bands

  2. A and I bands

  3. Two Z-lines

  4. Z and A bands

Show answer
Correct Option: C
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'.