Two types of symporters (NRT1 and NRT2) and one antiporter (CLC) are involved in nitrate transport in plants.

TLS Online TPP Program

#Id: 8412

#Section 3: Genetics, Cellular and Molecular Biology

Binding of Ca2+ ions to TN-C

triggers movement of TM to a new position on the filament, thereby exposing the myosin-binding sites on actin.

TLS Online TPP Program

#Id: 8620

#Section 3: Genetics, Cellular and Molecular Biology

A second class of CKIs found in metazoan cells is the Cip/Kip family of CKIs, consists of three proteins—p21CIP, p27KIP1, and p57KIP2. 

TLS Online TPP Program

#Id: 8536

#Section 3: Genetics, Cellular and Molecular Biology

Plant cells rely extensively on augmin-dependent microtubule branching nucleation to organize the microtubule cytoskeleton because they lack centrosomes.

TLS Online TPP Program

#Id: 8890

#Section 3: Genetics, Cellular and Molecular Biology

Mitotic spindle attach to chromosomes via specialized protein structures known as kinetochores

TLS Online TPP Program

#Id: 8087

#Section 2: General Biology

Saturation = extent of packing

Fully saturated fatty acids in the extended form pack into nearly crystalline arrays, stabilized by many hydrophobic interactions.