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Enzymes are proteins with specific tertiary structures. Part of this structure forms an active site. Only the substrate of an enzyme, in this case Maltose, fits/ binds to the active site. This forms an en...

During DNA replication, the two DNA strands separate and each acts as a template (due to base pairing) for DNA polymerase to use to make the second strand of DNA. As a result, each new DNA molecule has on...

Think of DNA like 2 long shoelaces coiled around each other to form a spiral - or a double helix as it's called. Each of the 2 shoelaces is called a 'strand' and is made up of something called 'polynucleo...

At rest a nerve cell or fiber has more sodium (NA+) ions in the extracellular fluid and more potassium (K+) ions in the intracellular fluid. There are both NA+ and K+ ion channels in the membrane of the n...

Of course. Spermatogenesis takes place in the seminiferous tubules of the testis. The germinal epithelium cells, which are in the wall of the seminiferous tubule, first differentiate into diploid spermato...