Tag: nutrition and its need in plants

Questions Related to nutrition and its need in plants

Ricinus communis, which yields Castor oil, belongs to the family

evs nutrition and its deficiency general functions of food nutrition and its need in plants nutrition and its need

  1. Meliaceae

  2. Pedaliaceae

  3. Cruciferae

  4. Euphorbiaceae

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Correct Option: D
Explanation:

The plant Ricinus communis which produces castor oil belongs to the family Euphorbiaceae.

So the correct option is D.

One of the following organisms has a saprophytic mode of nutrition. This organism is?

evs nutrition and its deficiency general functions of food nutrition and its need in plants nutrition and its need

  1. Mushroom

  2. Malaria parasite

  3. Leech

  4. Lice

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Correct Option: A

Why nutrition is necessity for an organism? 

evs nutrition and its deficiency general functions of food nutrition and its need in plants nutrition and its need

  1. It provides energy for the various metabolic processes in the body.

  2. It is essential for the growth of new cells and repair or replacement of worn out cells.

  3. It is needed to develop resistance against various diseases.

  4. All of the above.

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Correct Option: D
Explanation:

Yes, nutrition is a necessity for an organism. nutrition is the process of obtaining and utilizing food for survival. It is required for the following purposes-
(a) It provides energy for the various metabolic processes in the body.
(b) It is essential for the growth of new cells and repair or replacement of worn out cells.
(c) It is needed to develop resistance against various diseases.

(d) it provides substrate for energy production which is utilized in the different life process for survival.
Thus, the correct answer is option D.

It is believed that height of a child depends upon the genes inherited from parents. However, it is often seen that tall parents may have short children and vice-versa. Are there factors other than genes, that can cause these variations?

evs nutrition and its deficiency general functions of food nutrition and its need in plants nutrition and its need

  1. Yes, nutrition can be a factor.

  2. No, it can be an other cause.

  3. Ambiguous.

  4. Data insufficient.

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Correct Option: A
Explanation:

Growing taller and nutrition are closely correlated. The process of cell division and their development requires an adequate supply of energy, amino acids, water, lipids, vitamins and minerals. With food, people receive about 50 essential nutrients for growth. Inadequate amounts of food or too low caloric food is the primary cause for growth failure, especially when the growth velocity is high in children. 

Proper nutrition is required for

evs nutrition and its deficiency general functions of food nutrition and its need in plants nutrition and its need

  1. Muscle growth only

  2. Brain development only

  3. Body growth and development

  4. None of the above

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Correct Option: C
Explanation:
Nutrition is the intake of food in relation to the body's dietary requirements. Good nutrition is a balanced diet necessary for the growth and development of the body. Whereas poor nutrition can lead to reduced immunity of the body.
So the correct answer is 'Body growth and development'.

Consumption of which of the following yields gross calorific value of nearly zero in a human?

evs nutrition and its deficiency general functions of food nutrition and its need in plants nutrition and its need

  1. Lettuce

  2. Egg white

  3. Bread

  4. Meat

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Correct Option: A
Explanation:

During the process of digestion, a lot of energy is utilized and there's a simultaneous release of heat represented in terms of gross calorific value.

Animal products and flesh are complex in composition and therefore have a high calorific value. On the contrary, plant products are simpler in composition, therefore, have a low calorific value. Hence among lettuce, egg white, bread, and meat, lettuce has the lowest or nearly zero in a human.
So, the correct answer is 'Lettuce'.

The term 'Homeostasis' was proposed by

evs nutrition and its deficiency general functions of food nutrition and its need in plants nutrition and its need

  1. Claude Bernard

  2. Walter cannon

  3. Marcello Malpighi

  4. Henle

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Correct Option: B
Explanation:

Walter cannon developed the concept of homeostasis from the earlier idea of Claude Bernard and popularized it in his book 'The Wisdom of the Body', 1932. Cannon presented four tentative propositions to describe the general features of homeostasis: 

1. Constancy in an open system- Such as our body represent, it requires mechanisms that act to maintain this constancy.
2. Steady-state conditions require that any tendency towards change automatically meets with factors that resist change.
3. Regulating system that determines the homeostatic state consists of a number of cooperating mechanisms acting simultaneously or successively.
4. Homeostasis is the result of organized self-government, it does not occur by chance.