Electrons are constantly are moving in an atom, so dipoles are probable of occurring.

A dipole is defined as molecules or atoms with equal and opposite electrical charges separated by a small distance.

TLS Online TPP Program

#Id: 7734

#Unit 1. Molecules and their Interaction Relevant to Biology

The number of electrons in a neutral atom is equal to the number of protons.

TLS Online TPP Program

#Id: 9011

#Unit 6. System Physiology – Plant

Rubisco-activase is regulated by light via the ferredoxin–thioredoxin system.

TLS Online TPP Program

#Id: 6418

#Unit 2. Cellular Organization

The promoter of the araBAD operon from E. coli is activated in the presence of arabinose and the absence of glucose and directs expression of genes encoding enzymes required for arabinose metabolism. 

Unlike the cases of lac and gal genes, where a repressor and an activator work together, here two activators work together: AraC and CAP. 

TLS Online TPP Program

#Id: 9401

#Unit 11. Evolution and Behavior

Animal cognition

Some animal, especially many mammal, bird have cognitive ability that  extend to reasoning, problem solving, tool used and symbolic  communication.

TLS Online TPP Program

#Id: 8706

#Unit 1. Molecules and their Interaction Relevant to Biology