Chemical digestion of carbohydrates and lipids begins in the mouth while chemical digestion of proteins begins in the stomach. That is option C.
Digestion of food ingested by an individual begins from the mouth and ends at the anus. It involves series of mechanical (mastication and peristaltic movements) and chemical process that helps in the breaking down of the food nutrients into the composition it can be assimilated.
Carbohydrate digestion starts from the mouth because the salivary amylase acts on starch and breaks it down to simple sugars.
Also in the mouth, the lingual lipase acts on lipids making them become tiny droplets and separate from the watery components.
At the stomach, the enzyme pepsin acts on protein and converts it to polypeptide.
Therefore, chemical digestion of carbohydrates and lipids begins in the mouth while chemical digestion of proteins begins in the stomach.
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Answer:
The answer is "c"
Chemical digestion of carbohydrates and lipids begins in the mouth, while chemical digestion of proteins begins in the stomach.
Explanation:
The chemical digestion is a catabolism process where enzymes hydrolyze the large macronutrients (lipids, carbohydrates, proteins) breaking them down into small molecules.
The metabolism of carbohydrates begins at the mouth, where the salivar amylases break the glucose bonds down of the amylose (vegetal source) into disaccharides and the ones of the glycogen (animal source) into polysaccharides. Then in the stomach the HCl hydrolyze disaccharides and in the small intestine the pancreas amylase enables the breakdown of the disaccharides into monosaccharides to be absorb.
The chemical metabolism of the lipids (short-chain) starts in the mouth when they are hydrolize by the action of lipase in saliva, breaking the glycerol fatty acid bonds down, forming diglycerides. Then the bile salts emulsify the lipids allowing that the fats are solubilized in the chyme, and after that the pancreas lipase breaks fats into fatty acids in the small intestine.
The digestion of protein initiates in the stomach through the action of the pepsin and then at the duodenum, the trypsin and chymiotrypsin secreted by the pancreas continue with the hydrolyzation of the peptidic bonds (carbon-nitrogen).
transporting the glucose made during photosynthesis to the roots and
stems.
Phloem
Xylem } Vascular
stem
τρος
Xylem
Phloem
Which function is xylem specifically adapted to perform in plants?
(7.12A)
A
It helps prevent wer loss
B
It transports water from the roots to the leaves
с
It exchanges gases with the atmosphere
D
It captures sunlight for photosynthesis
Answer:
B
Explanation:
it transports water from roots to the leafs
Answer:
In a closed system the vapor pressure and the measured pressure of a gas increases.
Explanation:
as the pressure of the liquid increases the measured pressures also increases with a given temperature.
red dwarf
white dwarf
pulsar
black hole
Answer:
The correct answer is pulsar.
Explanation:
Protostar : Its a young star with contracting mass which gains mass from its parent molecular cloud. At this stage fusion process does not start.
Red dwarf: A star having lower surface temperature , luminosity, mass and size than of the sun.
White dwarf : its an ultimate stage for an average mass star like sun . its a small dense star with size relatively equal to planet.
Pulsar : A rotating neutron star that emits beam of radio waves and other electromagnetic radiations.
Black hole: It is region of space time with very strong gravitational pull that even smallest particle or electromagnetic wave is incapable to escape it.
Answer:
FALSE
Explanation:
i got it right