Cell biology

Cell biology

The study of cell structure, physiological properties, interactions with the environment and life cycle.

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Cell biology

S phase

Biology; Cell biology

That period of interphase when new DNA is synthesised as part of replication of the chromatin.

Salivary amylase

Biology; Cell biology

An enzyme secreted by the salivary glands that begins the breakdown of complex sugars and starches.

Pseudocoelomates

Biology; Cell biology

Animals that have a body cavity that is in direct contact with the outer muscular layer of the body and does not arise by splitting of the mesoderm; e.g., roundworms.

Pseudocoelom

Biology; Cell biology

In nematodes, a closed þuid-containing cavity that acts as a hydrostatic skeleton to maintain body shape, circulate nutrients, and hold the major body organs.

Protostomes

Biology; Cell biology

Animals in which the Þrst opening that appears in the embryo becomes the mouth; e.g., mollusks, annelids, and arthropods.

Protozoa

Biology; Cell biology

Single-celled protists grouped by their method of locomotion. This group includes Paramecium, Amoeba, and many other commonly observed protists.

A subatomic particle in the nucleus of an atom that carries a positive charge. The positively charged (+1) subatomic particle located in the atomic nucleus and having a mass slightly less than that ...