Tag: evs

Questions Related to evs

Which blood cells transport oxygen?

evs our body- its internal organ system leucocytes body fluids and immune responses respiratory and circulatory system

  1. Red

  2. White

  3. Both A and B

  4. None of the above

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Correct Option: A
Explanation:

Erythrocytes or red blood cells (RBC) are the most abundant of all the cells in blood. A healthy adult man has, on an average, 5 millions to 5.5 millions of RBCs per cubic mm of blood. RBCs are formed in the red bone marrow in the adults. RBCs are devoid of nucleus in most of the mammals and are biconcave in shape. They have a red coloured, iron containing complex protein called haemoglobin, hence the colour and name of these cells. These molecules play a significant role in transport of respiratory gases like oxygen and carbon dioxide.

Which one is smallest?

evs our body- its internal organ system leucocytes body fluids and immune responses respiratory and circulatory system

  1. Eosinophil

  2. Basophil

  3. Neutrophil

  4. Monocyte

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Correct Option: A
Explanation:

A.Eoisinophil - These cells are 10 - 15 µm in diameter

B.Basophils - They are 14-16 µm in diameter, 

C.Neutrophil – The cells are 12 to 17 µm in diameter

D.Monocyte – The cells are 15 to 30 µm in diameter.

So, the correct option is ‘Eosinophils’.

Migration of phagocytes and other leucocytes towards the place of infection occurs through

evs our body- its internal organ system leucocytes body fluids and immune responses respiratory and circulatory system

  1. Thromnosis

  2. Diapedesis

  3. Emboly

  4. Phagocytosis

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Correct Option: B
Explanation:
When a tissue is damaged or any infection occurs the phagocytes and other leucocytes move out of the circulatory system through the intact walls of the capillaries to the site of tissue injury or infection. This phenomenon is called diapedesis. Diapedesis is a part of the innate immune response.
So, the correct answer is 'Diapedesis'.

Choose the correct answer from the alternatives given.
The __ produces white blood cells, which function in __ and __.

evs our body- its internal organ system leucocytes body fluids and immune responses respiratory and circulatory system

  1. liver; oxygen transport; defense

  2. lymph nodes; oxygen transport; pH stabilization

  3. bone marrow; housekeeping; defense

  4. bone marrow; PH stabilization; defense

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Correct Option: C
Explanation:

The bone marrow produces white blood cells which function in housekeeping and defense by fighting against the invading pathogens.

So, the correct option is 'bone marrow; housekeeping; defense'.

Macrophages are derived from 

evs our body- its internal organ system leucocytes body fluids and immune responses respiratory and circulatory system

  1. Basophils

  2. Monocytes

  3. Neutrophils

  4. Eosinophils

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Correct Option: B
Explanation:

Macrophages are scavenging cells derived from monocytes and are found all over the body. These infiltrate the tissue during an inflammatory response.

So, the correct option is 'Monocytes'.

Deficiency of iron causes

evs nutrition and diet minerals and vitamins role of various nutrients different nutrients in food

  1. Goitre

  2. Pellagra

  3. Scurvy

  4. Anemia

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Correct Option: D
Explanation:

Anemia occurs when a person has lower-than-normal levels of red blood cells (RBCs) in the blood. Iron-deficiency anemia is the most common type of anemia, which occurs when your body does not have enough of the mineral iron. Your body needs iron to produce a protein called haemoglobin, which is responsible for carrying oxygen to your body’s tissues. Your tissues and muscles need oxygen to function effectively.

The mineral element whose deficiency in human body may lead to goitre is

evs nutrition and diet minerals and vitamins role of various nutrients different nutrients in food

  1. Iodine

  2. Fluorine

  3. Calcium

  4. Sodium

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Correct Option: A
Explanation:

Iodine is an important mineral required in diet. Iodine is a component of thyroid hormone. Its deficiency causes goitre. 

Which of the following is used as a source of protein or Major source of protein is

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Cicer arietinum

  2. Beta vulgaris

  3. Rizobium leguminosarum

  4. Oryza sativa

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Correct Option: A
Explanation:
  • Cicer arietinum ( chickpeas ) are one of the most widely consumed pulses in the world.
  • They are a great source of plant based protein, providing 20% or higher of the daily value of protein.
  • They also contain exceptional levels of iron,vitamin B$ _6$ and magnesium.
  • So the correct answer is 'Cicer arietinum'

Deficiency of which one of the following will lead to itching rashes?

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Proteins

  2. Vitamin - D

  3. Fats

  4. Vitamin - E

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Correct Option: A
Explanation:
 Protein is the building block of the muscles, skin, enzymes and hormones. It plays a vital role in all body tissues. Protein deficiency is when the intake of protein is unable to meet the body's requirements. Keratin is a type of protein that is found in the skin. This protein helps form tough skin tissues and protect cells from damage and stress. Deficiency of keratin causes several dermatological diseases like itching and rashes.
So the correct option is 'Proteins'.          

Which of the following is a source of nitrogenous compound in diet?

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Arhar and moth beans

  2. Soyabean and Til

  3. Moong and Ragi

  4. Sprouted pulses and cod liver oil

  5. All of the above

Show answer
Correct Option: E
Explanation:

The nitrogenous compound in our diet is a protein which is made up of various amino acids containing the amino group. These are found in the nodulated plants that mostly belongs to family Fabaceae includes all types of pulses, soybean, til.

ragi is used as cereal mainly contains carbohydrates but protein and fibers are also present in moderate amount.
So the correct option is 'All of the above'