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Which cell is the most important?

the brain cells

What organelle can you live without?


What are the 3 most important organelles?

‚ÄčOrganelle Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.

What type of cell is a human?

Types of cells in the human body

Stem cells Embryonic stem cells Adult stem cells
Red blood cells Erythrocytes
White blood cells Granulocytes (neutrophils, eosinophils, basophils) Agranulocytes (monocytes, lymphocytes)
Platelets Fragments of megakaryocytes
Nerve cells Neurons Neuroglial cells

Is your body a closed system?

A system with no inputs is called a closed system. One with inputs is an open system. Since human being needs energy, water, minerals, etc. (as inputs), human body is an open system.

Is the human body considered an open system?

Why is the body considered an open system? It exchanges materials & energy with its surroundings; our body cannot create energy, so it is imported from outside in the form of food; our body can also lose energy, in the form of heat, to the environment.

Is the cell an open or closed system?

Biological organisms are open systems. Energy is exchanged between them and their surroundings, as they consume energy-storing molecules and release energy to the environment by doing work. Everything outside of the system is called the surroundings. Single cells are biological systems.

What is closed system theory?

A closed system refers to a self-contained family system that employs impervious boundaries with the outside world (Simon et al. 1985). The presence of more permeable boundaries permits a free exchange of information and resources between the family unit and the larger systems.

What are the controls of a closed system?

Persons who use closed systems to create, modify, maintain, or transmit electronic records shall employ procedures and controls designed to ensure the authenticity, integrity, and, when appropriate, the confidentiality of electronic records, and to ensure that the signer cannot readily repudiate the signed record as …