When an endoplasmic reticulum is seen under a electron microscope.we see two types of ER one is smooth and other is rough.The rough ER is due to the presence of ribosomes,which are the protein producing enzymes.Rough ER produces mainly secretory protein which may secrete in particular organelles like lysosome or out ot the cell .

There is no special shape difference between living and non living things.But living things can feed,reproduce ,respond to stimuli .were non living things have not have these functions

Carbon is a atom.it has a atomic number ,that is proton number of 6.carbon has many allotrope's but main two's are graphite and diamond.Diamond is the hardest substance and graphite is used as lubricant.if you want to see graphite ,just see the tip of your pencil.Carbon has the ability of catenation,it can join with other … Read more

Acetic acid structural formula is CH3-CH2-CO-OH it is a weak acid

Air is made up of different types of gases .The majority of air is made up of nitrogen and a little oxygen and lot's of other gases.Now you think why more nitrogen than oxygen,Nitrogen is inert but oxygen is inflammable.if our air contain more oxygen than nitrogen ,a little spark can cause Catastrophic fire.More oxygen … Read more