Exp: A The organic compound citrulline is an \(\alpha\) amino acid. Its name is derived from Citrullus, the Latin word for watermelon. It has formula \(-\mathrm{H}_{2} \mathrm{NC}(\mathrm{O}) \mathrm{NH}\left(\mathrm{CH}_{2}\right)_{3} \mathrm{CH}\left(\mathrm{NH}_{2}\right) \mathrm{CO}_{2} \mathrm{H}\).
JIPMER-2019
Biomolecules
185320
Among the following, identify the Zwitterionic form
1[R]C([NH3+])C(=O)O
2[R]C([NH3+])C(=O)[O-]
3[R]C([NH3+])C(=O)O
4[R]C(N)C(=O)[O-]
Explanation:
Exp: B A zwitterions is an ion that contains two functional groups. It is an ion possessing both positive and negative electrical charge. The \(\mathrm{NH}_{2}\) group is the stronger base, and so it picks up \(\mathrm{H}^{+}\)from the \(-\mathrm{COOH}\) group to form a zwitterion.
TS EAMCET-02.05.2018 Shift-I
Biomolecules
185321
Which of the following is an amino acid derived hormone?
1 Epinephrine
2 Ecdysone
3 Estriol
4 Estradiol
Explanation:
Exp: A Epinephrine is a tyrosine amino acid derivative hormone it is also known as catecholamine secreted by adrenal glands. Epinephrine also known as adrenaline. It plays an in important role in the fight or flight by increasing blood flow to muscles. - Estradiol and Estriol are steroid hormones involved in the regulation of estrous and menstrual cycle. - Ecdysone is a steroid hormone that controls moulting in an insects.
NEET-2018
Biomolecules
185324
Which amino acid has no asymmetric carbon atom?
1 Glycine
2 Alanine
3 Proline
4 Threonine
Explanation:
Exp: A Glycine is one of the 20 naturally - occurring amino acids. It's chemical formula is \(\mathrm{NH}_{2}-\mathrm{CH}_{2}-\) \(\mathrm{COOH}\). It is an amino acid that has a single hydrogen atom. It is not chiral (asymmetric carbon atom that has four different groups or atoms attached to it). It is a colorless solid having a sweet taste and is highly soluble in water. All amino acids except glycine have an asymmetric carbon which is the alpha- carbon.NCC(=O)O
Exp: A The organic compound citrulline is an \(\alpha\) amino acid. Its name is derived from Citrullus, the Latin word for watermelon. It has formula \(-\mathrm{H}_{2} \mathrm{NC}(\mathrm{O}) \mathrm{NH}\left(\mathrm{CH}_{2}\right)_{3} \mathrm{CH}\left(\mathrm{NH}_{2}\right) \mathrm{CO}_{2} \mathrm{H}\).
JIPMER-2019
Biomolecules
185320
Among the following, identify the Zwitterionic form
1[R]C([NH3+])C(=O)O
2[R]C([NH3+])C(=O)[O-]
3[R]C([NH3+])C(=O)O
4[R]C(N)C(=O)[O-]
Explanation:
Exp: B A zwitterions is an ion that contains two functional groups. It is an ion possessing both positive and negative electrical charge. The \(\mathrm{NH}_{2}\) group is the stronger base, and so it picks up \(\mathrm{H}^{+}\)from the \(-\mathrm{COOH}\) group to form a zwitterion.
TS EAMCET-02.05.2018 Shift-I
Biomolecules
185321
Which of the following is an amino acid derived hormone?
1 Epinephrine
2 Ecdysone
3 Estriol
4 Estradiol
Explanation:
Exp: A Epinephrine is a tyrosine amino acid derivative hormone it is also known as catecholamine secreted by adrenal glands. Epinephrine also known as adrenaline. It plays an in important role in the fight or flight by increasing blood flow to muscles. - Estradiol and Estriol are steroid hormones involved in the regulation of estrous and menstrual cycle. - Ecdysone is a steroid hormone that controls moulting in an insects.
NEET-2018
Biomolecules
185324
Which amino acid has no asymmetric carbon atom?
1 Glycine
2 Alanine
3 Proline
4 Threonine
Explanation:
Exp: A Glycine is one of the 20 naturally - occurring amino acids. It's chemical formula is \(\mathrm{NH}_{2}-\mathrm{CH}_{2}-\) \(\mathrm{COOH}\). It is an amino acid that has a single hydrogen atom. It is not chiral (asymmetric carbon atom that has four different groups or atoms attached to it). It is a colorless solid having a sweet taste and is highly soluble in water. All amino acids except glycine have an asymmetric carbon which is the alpha- carbon.NCC(=O)O
Exp: A The organic compound citrulline is an \(\alpha\) amino acid. Its name is derived from Citrullus, the Latin word for watermelon. It has formula \(-\mathrm{H}_{2} \mathrm{NC}(\mathrm{O}) \mathrm{NH}\left(\mathrm{CH}_{2}\right)_{3} \mathrm{CH}\left(\mathrm{NH}_{2}\right) \mathrm{CO}_{2} \mathrm{H}\).
JIPMER-2019
Biomolecules
185320
Among the following, identify the Zwitterionic form
1[R]C([NH3+])C(=O)O
2[R]C([NH3+])C(=O)[O-]
3[R]C([NH3+])C(=O)O
4[R]C(N)C(=O)[O-]
Explanation:
Exp: B A zwitterions is an ion that contains two functional groups. It is an ion possessing both positive and negative electrical charge. The \(\mathrm{NH}_{2}\) group is the stronger base, and so it picks up \(\mathrm{H}^{+}\)from the \(-\mathrm{COOH}\) group to form a zwitterion.
TS EAMCET-02.05.2018 Shift-I
Biomolecules
185321
Which of the following is an amino acid derived hormone?
1 Epinephrine
2 Ecdysone
3 Estriol
4 Estradiol
Explanation:
Exp: A Epinephrine is a tyrosine amino acid derivative hormone it is also known as catecholamine secreted by adrenal glands. Epinephrine also known as adrenaline. It plays an in important role in the fight or flight by increasing blood flow to muscles. - Estradiol and Estriol are steroid hormones involved in the regulation of estrous and menstrual cycle. - Ecdysone is a steroid hormone that controls moulting in an insects.
NEET-2018
Biomolecules
185324
Which amino acid has no asymmetric carbon atom?
1 Glycine
2 Alanine
3 Proline
4 Threonine
Explanation:
Exp: A Glycine is one of the 20 naturally - occurring amino acids. It's chemical formula is \(\mathrm{NH}_{2}-\mathrm{CH}_{2}-\) \(\mathrm{COOH}\). It is an amino acid that has a single hydrogen atom. It is not chiral (asymmetric carbon atom that has four different groups or atoms attached to it). It is a colorless solid having a sweet taste and is highly soluble in water. All amino acids except glycine have an asymmetric carbon which is the alpha- carbon.NCC(=O)O
Exp: A The organic compound citrulline is an \(\alpha\) amino acid. Its name is derived from Citrullus, the Latin word for watermelon. It has formula \(-\mathrm{H}_{2} \mathrm{NC}(\mathrm{O}) \mathrm{NH}\left(\mathrm{CH}_{2}\right)_{3} \mathrm{CH}\left(\mathrm{NH}_{2}\right) \mathrm{CO}_{2} \mathrm{H}\).
JIPMER-2019
Biomolecules
185320
Among the following, identify the Zwitterionic form
1[R]C([NH3+])C(=O)O
2[R]C([NH3+])C(=O)[O-]
3[R]C([NH3+])C(=O)O
4[R]C(N)C(=O)[O-]
Explanation:
Exp: B A zwitterions is an ion that contains two functional groups. It is an ion possessing both positive and negative electrical charge. The \(\mathrm{NH}_{2}\) group is the stronger base, and so it picks up \(\mathrm{H}^{+}\)from the \(-\mathrm{COOH}\) group to form a zwitterion.
TS EAMCET-02.05.2018 Shift-I
Biomolecules
185321
Which of the following is an amino acid derived hormone?
1 Epinephrine
2 Ecdysone
3 Estriol
4 Estradiol
Explanation:
Exp: A Epinephrine is a tyrosine amino acid derivative hormone it is also known as catecholamine secreted by adrenal glands. Epinephrine also known as adrenaline. It plays an in important role in the fight or flight by increasing blood flow to muscles. - Estradiol and Estriol are steroid hormones involved in the regulation of estrous and menstrual cycle. - Ecdysone is a steroid hormone that controls moulting in an insects.
NEET-2018
Biomolecules
185324
Which amino acid has no asymmetric carbon atom?
1 Glycine
2 Alanine
3 Proline
4 Threonine
Explanation:
Exp: A Glycine is one of the 20 naturally - occurring amino acids. It's chemical formula is \(\mathrm{NH}_{2}-\mathrm{CH}_{2}-\) \(\mathrm{COOH}\). It is an amino acid that has a single hydrogen atom. It is not chiral (asymmetric carbon atom that has four different groups or atoms attached to it). It is a colorless solid having a sweet taste and is highly soluble in water. All amino acids except glycine have an asymmetric carbon which is the alpha- carbon.NCC(=O)O
