Tag: minerals and vitamins

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Questions Related to minerals and vitamins

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

Cartilage matrix is digested during its osteogenesis through

  1. Intracellular autophagic activity

  2. Extracellular lysosomal activity

  3. Intracellular heterophagic activity

  4. Both B and C.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

During osteogenesis, the degradation of the cartilage matrix is mediated by enzymes secreted into the extracellular space, characterizing it as an extracellular lysosomal activity.

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

Assertion  :  Trypsin helps in blood digestion of predator animals.

Reason  :    Trypsin hydrolyzes fibrinogen


  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Essentially the word digestion means

  1. Burning of food

  2. Oxidation of food

  3. Hydrolysis of food

  4. Breakdown of food
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

Intracellular digestion occurs in human body for

  1. Lipids

  2. Proteins

  3. Sucrose

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.
Multiple choice biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

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

  1. Paramecium

  2. Planaria

  3. Earthworm

  4. All the given options
Reveal answer Fill a bubble to check yourself
B Correct answer
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.