A molecule is the smallest part of a substance that has the physical and chemical properties of that substance. In some respects, a molecule is similar to an atom. A molecule, however, is composed of more than one atom.

TLS Online TPP Program

#Id: 8621

#Section 3: Genetics, Cellular and Molecular Biology

The Cip/Kip family members bind to cyclin-bound CDKs and block the activity of cyclin D-, E-, A-, and B-containing complexes.

TLS Online TPP Program

#Id: 8041

#Section 2: General Biology

There are two type representation of amino acid structure

1. By Fischer’s convention L and D

2. By absolute configuration RS System

TLS Online TPP Program

#Id: 8112

#Section 2: General Biology

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: 8098

#Section 2: General Biology

The surfaces of the cells that form the alveoli (small air spaces of the lung) are coated with surfactant, which decreases the alveolar surface tension. 

Lung surfactant contains 80 to 90% phospholipid by weight, and 70 to 80% of the phospholipid is phosphatidylcholine, mostly the dipalmitoyl species.

TLS Online TPP Program

#Id: 10338

#Section 2: General Biology

Step involve in formation of mature B-cell