Question

D amino acids are absorbed by
i) passive diffusion
ii) active transport
iii) both of them
iv) none of the above

Answer 1

Answer ⇒ Option (ii). Active Transport.

Explanation ⇒ 
We know that the Amino acids are the compounds having the Carboxylic group attached with the amino groups. 

Now, these amino acids are the major parts of our body systems and also in the Plants. 

In case of the humans, D Amino acids in the forms of the proteins or other compounds, are absorbed in the small intestines and its various parts. 

Since, the concentrations of the D-amino acids inside the small intestines of the Humans is higher as compared to the the concentrations of the amino acids outside. But when the D-amino acids reaches in the small intestine, it have the lower concentration as compared to that of inside. Thus, to take the amino acids, energy in the form of the ATP (Adinosine tri phosphate) is used. As a result, amino acids from the lower concentration transferred to the higher concentration in the small intestines. This process of the transportation in which energy is required is called as the Active Transport.
Thus, Option (b) is correct.

In Case of the Passive transports, the molecules are transported from the higher concentration to the lower con without the loss of the energy. Thus, It cannot be true. 


I hope it will helps you.

Answer 2

Answer :-

D Amino acid are absorbed by ''Passive Diffusion''


# D Amino acid are absorved from the intestine.

# Excreted in Detail amino acid are urine of normal rates of drinking 5% glucose1% .

# D- Amino acid are found in plant and microorganisms.

# D- Amino acid are taken in the diet / bacterial cell wall,

=>> Passive diffusion :-

# When substance move across the cell membrane from of higher concentrations and Lower concentration.

# is of water and solute molicules across the cell membrane influenced by hydraulic pressure.

# Depending on the size of the membrane.

# Pores only solutes of a certain size may pass through it.

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