Resources (page 73)

Covalent BondingCovalent bonding is a formation of two atoms sharing a pair of electrons. This type of bonding happens in most non-metal elements as well as in compounds formed amon...

Ionic Compound Ionic compounds are comprised of charged particles, known as ions. They have a giant lattice structure along with great electrostatic forces of attraction. An ion is...

Atoms are made up of a nucleus comprising protons and neutrons, encircled by electrons in shells. The number of subatomic particles in an atom can be determined from the atom`s atom...

Substances are transported passively down concentration gradients. Often, substances have to be moved from a low to a high concentration - against a concentration gradient.Active tran...

For an organism to work, substances should move into and out of cells. Three processes add to this development - diffusion, osmosis, and active transport.Osmosis is the diffusion of w...

For an organism to work, substances should move into and out of cells. Three cycles add to this development - diffusion, osmosis, and active transport. Particles (molecules and ion...

Stem Cells in humans Stem cells will be cells that have not gone through differentiation. A cell that has not yet become specific is called undifferentiated. An embryo creates from...

Chromosomes convey genetic data in a molecule called DNA. A sort of cell division called mitosis ensures that when a cell divides each new cell created has the same genetic data. DN...

Cell Differentiation and Specialisation At the point when cells express explicit qualities that describe a specific sort of cell, we say that a cell has become differentiated. When...

G del s Incompleteness Theorems and their Implications for ComputingA mathematician David Hilbert wanted to establish Mathematics as a formal system. To achieve this he devis...