Tag: minerals and vitamins

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

In the complete absence of which the duodenal digestion of chime proteins not possible 

  1. Enterokinase

  2. Dil HCl

  3. Gastrin

  4. All the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Enterokinase is the enzyme that activates trypsinogen into trypsin. Without trypsin, other pancreatic proteases cannot be activated, making protein digestion in the duodenum impossible.

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

Chilomicrons are

  1. Small fat globules coated with protein

  2. Protein molecules coated with fat

  3. Small granules found in gastric juice

  4. Aerobic microbes

  5. Neural signals that stimulate intestinal secretions
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chylomicrons are lipoprotein particles that consist of triglycerides, phospholipids, cholesterol, and proteins. They transport dietary lipids from the intestines to other locations in the body.

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

Chilomicrons are

  1. Micelles covered by a protein coat

  2. Droplets alongwith triglycerides

  3. Triglycerides along with monosaccharides

  4. Glycerol droplets formed in intestine after digestion of fats
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chylomicrons are essentially fat droplets (triglycerides) coated with proteins and phospholipids to make them water-soluble for transport in the lymph and blood.

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

Assertion : Coacervates are believed to be the precursors of life.

Reason : Coacervates were self - duplicating aggregates of proteins surrounded by lipid molecules.

  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
C Correct answer
Explanation

Oparin and Sydney Fox held that large organic molecules synthesised abiotically on primitive earth and formed large colloidal aggregates due to intermolecular attraction. These colloidal particles were called coacervates. In coacervates, lipid molecules are joined end to end forming a layer around each aggregate. This represents a single lipid membrane. Coacervates divide by budding like bacteria.

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

Degradation of proteins play a part in ____________.

  1. Calvin cycle

  2. Water cycle

  3. Sulphur cycle

  4. Nitrogen cycle
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Plants and animals contain nitrogen in their body Protein' After death, the Proteins of dead bodies are decomposed into amino acids and ammonia. This ammonia may be converted into nitrates or free Nitrogen'
So, the correct answer is 'Nitrogen cycle'
Multiple choice evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

Those amino acids that cannot be synthesized by the body and must be derived through the diet are known as

  1. coenzymes

  2. essential amino acids

  3. polypeptides

  4. non-essential amino acids
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • Essential amino acids are not produced in the body, so they are to be taken from outside.
  • There are 9 essential amino acids; Histidine, isoleucine, leucine, valine, threonine, tryptophan, phenylalanine
So, the correct answer is 'Essential amino acids'