Define cell. What does it mean in Latin?

$(i)$ Why is the cell called the structural and functional unit of life?
$(ii)$ Why is the plasma membrane called a selectively permeable membrane?
$(iii)$ Name the factor which decides the movement of water across the plasma membrane.

Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell?

Name the smallest known cell.

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?

Which type of animal cell lacks both mitochondria and endoplasmic reticulum?