Yes , bacteria , protozoa and many algae contain only one cell .
Unicellular organisms contain just one cell, example: amoeba, bacteria. Multicellular organisms are made up of more than one cell which includes everything other than the unicellular organisms.
Unicellular organisms
The cell membrane - without which cytoplasm is meaningless - serves to contain cytoplasm just as a wall would contain a city.
Unicellular organisms and gametes
An eukaryotic cell just means that it has membrane bound organelles and a nucleus. single cell organisms are organisms that are solo, they aren't cell specialized. Single cell organisms can be eukaryoic or prokaryotic (no membrane bound organelles and no nucleus) cells.
Yes, unicellular organisms can have organelles. Some examples include bacteria with ribosomes, mitochondria, and a nucleus, while protozoa may have organelles like flagella or cilia for movement. Organelles help perform specific functions within a cell.
Centrioles are found only in animal cells and help in cell division. Plasmodesmata are unique to plant cells and facilitate communication between neighboring cells. Contractile vacuoles are present in some single-celled organisms and aid in expelling excess water from the cell.
A cell is the smallest part of a living organism that contains the identity within a strand of DNA. The cells of your body can grow into specialized functions such as heart or skin. Some microscopic organisms are 1 cell creatures or simple multi-cell organisms. That is what is mean by "All living organism are composed of cells."
multicellular organisms are made of multiple cells but uni cellular organisms have onemulticellular organisms are made of multiple cells but uni cellular organisms have one cellmulti cells humans, plant, doguni cell are moss, fungus, mushrooms
This varies enormously from species to species. Most single cell organisms can even be considered immortal. they just divide in two with neither cell being identifiable as being the "new" cell.
A trypanosome is just one single cell!
Nucleic acids are like a recipe book for the cell, providing instructions for making proteins and controlling cell functions. Just as a recipe book contains recipes that guide the preparation of meals, nucleic acids contain genetic information that directs the synthesis of proteins in living organisms.