As an Amazon Associate I earn from qualifying purchases.

Cells Definition and Explanation PDF | Download eBooks

Learn Cells definition in biology with explanation to study “What are Cells”. Study cells explanation with biology terms to review biology course for online degree programs.

Cells Definition:

  • Cell is life's fundamental unit of structure and function.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson

Cells Explanation:

Cells are the small building blocks of all the living things. The cells are membrane enclosed and have multiple organelles that have a particular function. The cells are usually covered with a cell membrane that is partially permeable and in case of plants, has a cell wall made of cellulose too. They are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialized function. Cells are the basic structures of all living organisms. Cells provide structure for the body, take in nutrients from food and carry out important functions. The cells are able to carry out respiration and producing energy.

Keep Learning Biology Explanations

What are Cis-trans isomers?

The cis isomers have the same formula but have a different spatial orientation of the functional groups. For example the ...

What is Gastrovascular cavity?

The gastrovascular cavity is the primary organ of digestion and circulation in two major animal phyla: the Cnidaria which include ...

What is Transcription?

Transcription is the first step in gene expression and involves transcribing a gene's DNA sequence to make an mRNA molecule. ...

What is Aneuploidy?

Aneuploidy is the presence of an abnormal number of chromosomes in a cell, for example a human cell having more ...

What is Imbibition?

Imbibition is a special type of diffusion when water is absorbed by solids-colloids causing an enormous increase in volume. Examples ...

What is Fever?

A fever is a body temperature that is higher than normal. A normal temperature can vary from person to person, ...