Name the single membrane-bound cell organelle which is found in an animal cell.

Expand the following:
$(i)$ $RER$
$(ii)$ $SER$
$(iii)$ $DNA$
$(iv)$ $RNA$
$(v)$ $ATP$
$(vi)$ $SPM$

Name the nucleic acids present in the cell.

When a living plant cell loses water through osmosis,there is contraction of the contents of the cell away from the cell wall. What is this phenomenon called?

We eat food composed of all the nutrients like carbohydrates,proteins,fats,vitamins,minerals,and water. After digestion,these are absorbed in the form of glucose,amino acids,fatty acids,glycerol,etc. What mechanisms are involved in the absorption of digested food and water?

Draw a neat labelled diagram of an animal cell.