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Glucose exists in two forms: a straight chain and ring.
As a straight chain, the molecule contains five -OH (hydroxyl) groups and one CH=O. (aldehyde) group.
As a ring, the molecule still contains five hydroxyl groups, but it’s aldehyde group has been converted to a C-O-C (ether) group.
The Sun is a huge, glowing sphere of hot gas.
Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur.
The compound zinc oxide (ZnO) is called philosopher’s wool.
Alchemists, as part of their rituals, would burn zinc in air and collect the residue, which formed into white woolly tufts.
They called it lana philosophica in Latin, meaning philosopher’s wool.
When the chyme is fully digested, it is absorbed into the blood. 95% of absorption of nutrients occurs in the small intestine.
Water and minerals are reabsorbed back into the blood in the colon (large intestine) where the pH is slightly acidic about 5.6 ~ 6.9
Elements in 3-12 groups are called transition elements.
They form coloured compounds.
Syphilis is a sexually transmitted disease.
It can cause serious damage to brain, heart and nervous system.
Binary fission is a kind of asexual reproduction in some prokaryotes like bacteria.
Budding is also a type of an asexual reproduction in which a new organism develop from an outgrowth or bud.
The process of combining different varieties of organisms to create a hybrid is known as hybridisation.