The amino group at C-2 bears a fatty acid in amide linkage.

The fatty acid is usually saturated or monounsaturated, with 16, 18, 22, or 24 carbon atoms.

Ceramide is the parent compound for this group.

TLS Online TPP Program

#Id: 8350

#XL - Q Biochemistry

One NPF is called WASp, as it is defective in patients with Wiskott-Aldrich syndrome.

TLS Online TPP Program

#Id: 9297

#XL - S Microbiology

Nitrite reductase

Nitrite (NO2-) is a highly reactive, potentially toxic ion.

Plant cells immediately transport the nitrite into chloroplasts or plastids.

The enzyme nitrite reductase reduces nitrite to ammonium.

Leaf chloroplasts and root plastids contain different forms of nitrite reductase.

Each polypeptide contains two prosthetic groups, an iron-sulfur group and a specialized heme.

NO3-, high sucrose conc, and light induce the transcription of nitrite reductase mRNA.

Asparagine and glutamine repress the induction.

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#Id: 9200

#XL - T Zoology

1. Resistant to pesticide in insect

2. Antibiotic resistant in pathogen

3. Industrial melanism

TLS Online TPP Program

#Id: 10614

#XL - R Botany

Classification of peteridophytes

PSILOPHYΤΑ (WISK FERNS)

Eg: Psilotum

TLS Online TPP Program

#Id: 9700

#XL - T Zoology

Mating pathway in the yeast S. cerevisiae, is a MAP kinase cascade which linked to GPCRs.