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The difference between chromatin and chromosome can be highlighted when using the analogy of a wool. Chromatin is the unwound wool pile of wool where as chromosomes are the tightly wound and condensed woo...

For this kind of question, facts such as how this is the last step of aerobic respiration, which happens in the mitochondrial membrane - most specifically the cristae (inner folds of the mitochondria) - s...

The main structures in an animal cell are: The cell membrane- the membrane found around the outside of the cell, some substances can cross it to move in and out of the cell (this means it is semi-permeabl...

• SAN send a wave of depolarisation/excitation across the atria causing them to contract• wave cannot pass directly to the ventricle, due to the non-conductive tissue of AV-valves• wave reaches the AVN (i...

Starch is a polymer of the sugar glucose, an important component of respiration and needed to provide plants with energy. Unlike glucose, starch is insoluble allowing it to be stored within the cell witho...