Wastes are also disposed of from the cell through the cell membrane.   Sort of...they don't pop if punctured. They keep foreign materials that will harm the cell from entering and allow water and air in through a process called osmosis; the amount of anything entering or exiting the cell is controlled by the nucleus.
A caregiver or carer is an unpaid or paid person who helps another individual with an impairment with his or her activities of daily living. Any person with a health impairment might use caregiving services to address their difficulties. Caregiving is most commonly used to address impairments related to old age, disability, a disease, or a mental disorder.
Typical duties of a caregiver might include taking care of someone who has a chronic illness or disease; managing medications or talking to doctors and nurses on someone's behalf; helping to bathe or dress someone who is frail or disabled; or taking care of household chores, meals, or bills for someone who cannot do these things alone.