Tag: role of various nutrients

Questions Related to role of various nutrients

Digestion process in human is

biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

  1. Extracellular

  2. Intracellular

  3. Intercellular

  4. Both (a) and (c)

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Correct Option: D

Cartilage matrix is digested during its osteogenesis through

biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

  1. Intracellular autophagic activity

  2. Extracellular lysosomal activity

  3. Intracellular heterophagic activity

  4. Both B and C.

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Correct Option: B

Assertion  :  Trypsin helps in blood digestion of predator animals.

Reason  :    Trypsin hydrolyzes fibrinogen


biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

  1. If both the assertion and the reason are true and the reason

    is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is

    not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true

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Correct Option: A
Explanation:

Trypsin is protein digesting enzyme present in the intestine of animals. Though it cannot digest casein (a milk protein), in predator animals drinking the blood of their prey, trypsin hydrolyzes fibrinogen of blood into fibrin, leading to blood coagulation thus help in blood digestion. It also activates other pancreatic proteases.

Essentially the word digestion means

biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

  1. Burning of food

  2. Oxidation of food

  3. Hydrolysis of food

  4. Breakdown of food

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Correct Option: D
Explanation:

Digestion is the breakdown of food into smaller components that can be more easily absorbed and assimilated by the body. These smaller substances are absorbed through the small intestine into the blood stream.

Nutrition involving engulfment of whole or parts of a plant or animal in solid or liquid state is known as

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Holozoic

  2. Saprozoic

  3. Parasite

  4. Symbiotic

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Correct Option: A

In humans, digestion is

biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

  1. Intercellular

  2. Intracellular

  3. Extracellular

  4. Both A and B

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Correct Option: C

Intracellular digestion occurs in human body for

biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

  1. Lipids

  2. Proteins

  3. Sucrose

  4. All of the above

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Correct Option: D
Explanation:
  • The starch, proteins and fats in food get digested by digestive enzymes and get converted into simpler components and this type of digestion is called extracellular digestion.
  • The starches and some glycogen in food get hydrolysed inside the mouth while the food is swallowed by ptyalin or salivary amylase enzyme in the saliva.
  • So, the correct answer is 'All of the above'.

Liver necrosis and muscular dystrophy are caused by lack of trace element

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Zinc

  2. Arsenic

  3. Selenium

  4. Molybdenum

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Correct Option: C

Microphagial nutrition occurs in

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Amphioxus

  2. Hydra

  3. Euglena

  4. Paramaecium

  5. Insects

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Correct Option: D

In which of the following organisms, extracellular as well as intracellular digestion occurs?

biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

  1. Paramecium

  2. Planaria

  3. Earthworm

  4. All the given options

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Correct Option: B
Explanation:

In Planaria, digestion involves both the modes, ie, extracellular as well as intracellular. Fats are normally digested extracellularly, while other food components are digested intracellularly.
The intracellular digestion is done by amoeboid cells lining the intestine. Digested food diffuses to the surrounding mesenchyme. 

Thus the correct answer is option B.