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Organelle
In cell biology, an
organelle is one of several
structures with specialized
functions, suspended in the
cytoplasm of a eukaryotic
cell. Eukaryotes are the
most structurally complex
known cell type, and by
... > full story
Cell membrane
A cell membrane, plasma
membrane or plasmalemma is a
selectively permeable lipid
bilayer coated by proteins
which comprises the outer
layer of a cell. The plasma
membrane works between the
machinery on the inside of
... > full story
Chloroplast
Chloroplasts are organelles
found in plant cells and
eukaryotic algae that
conduct photosynthesis.
Chloroplasts absorb sunlight
and use it in conjunction
with water and carbon
dioxide gas to produce food
... > full story
Cell (biology)
The cell is the structural
and functional unit of all
living organisms, and is
sometimes called the
"building block of life."
Some organisms, such as
bacteria, are unicellular,
consisting of a single cell.
... > full story
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Plant cell
There are three major classes of plant cells that can then differentiate to form the tissue structures of roots, stems, and leaves. (The three distinct types of plant cells are classified according ... > more -
Prokaryote
Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, multicellular). This set of characteristics is distinct from ... > more -
Trait (biology)
In biology, a trait or character is a feature of an organism. The term phenotype is sometimes used as a synonym for trait in common use, but strictly speaking, does not indicate the trait, but the ... > more -
Mitochondrion
In cell biology, a mitochondrion (plural mitochondria) is an organelle found in most eukaryotic cells. Mitochondria are sometimes described as "cellular power plants," because their primary function ... > more -
Protein biosynthesis
Protein biosynthesis (Synthesis) is the process in which cells build proteins. The term is sometimes used to refer only to protein translation but more often it refers to a multi-step process, ... > more -
Denaturation (biochemistry)
Denaturation is the alteration of a protein shape through some form of external stress (for example, by applying heat, acid or alkali), in such a way that it will no longer be able to carry out its ... > more -
Sensory neuron
Sensory neurons are nerve cells within the nervous system responsible for converting external stimuli from the organism's environment into internal electrical impulses. For example, some sensory ... > more
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